The Cockpit · September 2026

Edito

September 2026: A bad month within a good year, or a turning point?

September 2026 was a month of wide dispersion between asset classes.

The overall picture is negative for the month, and still clearly positive for the year. Of the twenty-one model portfolios across the three currencies, only one finished September higher. Returns for the month ran from minus 3.5 per cent, for the Permanent portfolio in dollars, to plus 0.4 per cent for the Equity portfolio in francs. The Swiss exception carries an irony. The franc weakened during the month. That lifted the portfolio’s international equity holdings once they were converted back, even though those same holdings lost money in dollars and in euros.

Step back to the year and it reads differently. Seventeen of the twenty-one are up. The equity portfolios lead at about 11 per cent, in all three currencies. The four still negative are the fixed income sleeves and the Permanent portfolio in dollars. One bad month has not undone the year.

The big story is interest rates. They rose sharply across the world, and across every maturity.

Three major central banks raised by 25 basis points in September: the Federal Reserve, the European Central Bank and the Bank of Japan. In the United States, the two-year yield rose 54 basis points to 4.88 per cent. The ten-year reached 5.29 per cent. It has not been that high since May 2002.

The elephant in the room may be France. The 2027 presidential campaign is starting to intensify, and French yields moved up sharply. France now borrows more expensively than Italy. That was hard to imagine only a short time ago.

There is a second difference, and it matters more than the first. French debt is mostly held by foreigners. Non-residents own about 57 per cent of it, against roughly 30 per cent for Italy. That makes France unusually exposed to a change in investor sentiment. Whoever wins next year’s election will inherit a difficult position. Interest payments alone are set to reach 91 billion euros in 2027, up 15 per cent on this year. France will spend more on servicing its debt than on educating its children. Higher rates will push that number further.

The market has started to say something blunter. Top rated companies such as L’Oreal, TotalEnergies and Air Liquide now borrow at lower rates than the French state for similar maturities. Investors see less credit risk in those names than in the government that taxes them. The reason is where the revenue comes from. These are global businesses that happen to be domiciled in France.

A growing number of observers now ask whether French debt could be the trigger for a new financial crisis in the euro area.

The rise in rates is linked to the surge in oil. Brent ended September 14.4 per cent higher. The American benchmark, WTI, gained only 5.4 per cent. Two things explain it. The Strait of Hormuz remains the first. The second is the attack of 10 September on the East-West pipeline, which carries Saudi crude to the Red Sea for export. Saudi Arabia then told European refiners they might receive no crude at all from the Kingdom in October.

The timing of one official comment is worth recording. Chris Wright, the United States Secretary of Energy, spoke to CNBC on 2 September. He said more than 17 million barrels had crossed Hormuz the previous day, a wartime record. He said regional exports were now running above their pre-war level. That comparison holds only if you count the Saudi and Emirati pipelines that bypass the strait. About 20 million barrels a day went through the strait itself before the war began on 28 February. Eight days after he spoke, one of those bypass pipelines was hit and shut down. Meanwhile the United States Strategic Petroleum Reserve fell to 283.8 million barrels, its lowest level since October 1982.

Energy and rates both pointed the wrong way, and yet QQQ, the main Nasdaq 100 fund, finished September up 3.3 per cent. It was the exception. The S&P 500 lost 0.5 per cent and the Dow Jones fell 4.3 per cent. Technology was the only American sector to rise, with XLK up 5.1 per cent. Every other sector fell. The worst were financials at minus 7.1 per cent, materials at minus 7.1 and real estate at minus 6.5. Growth at the technology companies is strong enough to shield them from higher rates. It did not shield the rest of the market.

Geography told the same story. The energy importers paid. The STOXX Europe 600 fell 2.5 per cent and the French market, through the EWQ fund, fell 7.1 per cent. China, Hong Kong and India all fell. Japan, South Korea and Taiwan, carried by technology, finished the month higher.

The dollar led the currencies, as it often does when investors turn cautious. The United States is also the largest oil producer in the world, which helps. The dollar index rose 2.0 per cent. EUR/USD fell 2.1 per cent, GBP/USD fell 2.3 per cent, and USD/CHF rose 3.1 per cent. Among the major currencies, the dollar lost ground only to the yen. Gold looks like another victim of higher energy prices. It lost 6.7 per cent in dollars and is now negative for the year. Bitcoin, on the other hand, continued its recovery of recent months, adding 6.4 per cent.

Will September 2026 prove a turning point in the bull market we have enjoyed since the end of 2022?

Much depends on whether inflation is transitory. That in turn depends on the Strait of Hormuz and on how the conflict with Iran develops. But inflation may not be only a supply story. A comment from the chief executive of McDonald’s caught my attention. Chris Kempczinski spoke to CNBC on 23 September, at the company’s investor day, a week after the Fed raised rates. He said inflation would stay with us for many more years at an elevated level. He also told his own team to stop describing it as a difficult environment and to start calling it the environment. Beef prices, he noted, have nearly doubled in five years across the company’s largest markets. The shares fell to a 52-week low after he spoke. If he is right, rate rises may continue.

Remember 2021 and 2022. Inflation was called transitory until it was not. Central banks then raised hard, and both equities and bonds fell. Some observers are now drawing a parallel with the 1970s, when a first wave of inflation was followed by a second. Laid side by side, the two periods look uncomfortably alike.

Are we heading that way? Perhaps not. The war with Iran is so political that its end could produce the opposite effect, with oil flowing freely again and rates falling alongside energy prices. That is the difficulty for investors today. Political decisions are very hard to predict, particularly when they depend on several parties at once.

The Cockpit · September 2026

The Seven Model Portfolios

Seven classic portfolios, from Fixed Income through to Equity, read as references rather than recommendations. Each is passive, total-return and rebalanced quarterly, indexed to 100 with a simulated-expense slider. The graph, the performance and risk statistics, the contribution by holding and the full compositions sit below, frozen as of 30 September 2026. They are a risk dial to set a real allocation against, not products.

The Cockpit · September 2026

Equity Watchlist

One thousand companies, the S&P 500 plus the 500 others we consider the most important in the world, priced to the close of 30 September 2026. Sort any column to see where the month actually moved, filter by sector, region, currency or size, and open a name to read its ten-year history.

The Cockpit · September 2026

Top News

The September developments that mattered most for markets, read to the close of 30 September 2026. Every figure was checked against a filing, an official publication or our own series. Where a claim rests on press reporting, the outlet is named.

The Federal Reserve raised rates for the first time since July 2023. The move came on 16 September, effective the next day, and took the target range to 3.75 to 4.00 per cent. It was 25 basis points, and the vote was unanimous, twelve to nothing. The effective fed funds rate printed 3.88 per cent on the 30th.^[1]

The Fed published new projections the same day, and they point higher. Sixteen of the eighteen participants who submitted a rate projection expect at least one further rise before the end of the year. Four of those expect two. The median path rose at every horizon against the June projections: 4.1 per cent at the end of 2026 against 3.8, 4.1 for 2027 against 3.6, 3.9 for 2028 against 3.4, and a longer-run rate of 3.2 against 3.1. The statement said the move would support a timelier return to the 2 per cent goal. Kevin Warsh told the press conference that inflation is too high and has been for too long, and that the summer’s readings did not show underlying trends improving. Warsh again submitted no projection of his own, as he had declined to give guidance at Jackson Hole in August. The chair is steering by stated intent rather than by a published path, which leaves the market to read each inflation and jobs print without a marker from him. The next meeting is 27 and 28 October.^[2]

American yields rose about half a percentage point across the curve. The two-year went up 54 basis points to 4.88 per cent. The ten-year rose 54 basis points to 5.29. The thirty-year rose 39 to 5.64. The ten-year real yield, which strips out expected inflation, rose 49 basis points to 2.93 per cent. For the year the ten-year is up 111 basis points and the real yield 100.^[6] A higher real yield lowers the present value of any cash promised later rather than sooner. Most of the asset moves below follow from this.

Two other major central banks raised in September, and two held. The European Central Bank moved the same day as the Fed, raising 25 basis points and taking the deposit facility from 2.25 to 2.50 per cent. Its main refinancing rate stood at 2.65 per cent. The Bank of Japan also raised 25 basis points, on 18 September, from 1.00 to 1.25 per cent, on a seven to two vote, effective the 24th. That is the highest Japanese policy rate since 1995. The Bank of England held Bank Rate at 3.75 per cent, where it has been since 18 December 2025. The Swiss National Bank held its policy rate at zero. Swiss overnight money still costs slightly less than nothing: SARON printed minus 0.068 per cent.^[1][3]

Ten-year government yields now run from 0.59 per cent in Switzerland to 5.40 per cent in the United Kingdom. That is a gap of 481 basis points between two developed economies, each with its own currency and its own central bank. Japan sat at 3.06 per cent on 30 September.^[4]

France now borrows more expensively than Italy. On 30 September the French ten-year OAT yielded 4.75 per cent, against 4.61 for the Italian BTP and 3.58 for the German Bund. France paid 117 basis points over Germany. Italy paid 103. The French premium widened 37 basis points during September, from 80 at the end of August. The Italian premium widened about 19. The French yield itself rose 64 basis points on the month. A spread above 80 basis points is widely treated as a warning level, and France has been above it since the summer. It widened further immediately after our cut-off, reaching 146.9 basis points on 2 October. That is the widest since the euro debt crisis of 2011 and 2012. For most of the single currency’s life France borrowed more cheaply than Italy. It no longer does.^[5]

Brent rose 14.4 per cent in September and WTI rose 5.4 per cent. Brent closed at $103.53, traded as high as $108.75 on 15 September, and stayed above $100 in fifteen of twenty-one sessions. WTI closed at $90.42. For the year Brent is up 70.1 per cent against 57.5 for WTI.^[7] The reason the two parted company is geography. On 10 September drones launched from Iraqi territory hit Saudi Arabia's East-West pipeline, the Petroline. It carries crude 1,200 kilometres from the eastern oil fields to Yanbu on the Red Sea. Its purpose is to reach open water without passing through the Strait of Hormuz. Saudi Arabia had been sending about 5m barrels a day through it, because Iran had closed Hormuz to traffic. The strike hit three pumping stations and satellite pictures showed the fires. Saudi Arabia shut the line and restarted it on 22 September, according to Reuters.^[8] For twelve days the world's largest oil exporter could not reach the sea by either route. Brent prices crude that travels by ship. WTI prices barrels at Cushing, Oklahoma. A blockage in the Gulf shows up in one and not much in the other.

Saudi Aramco told European refiners they would get no crude at all in October. Bloomberg reported it on 18 September. Aramco sent formal force majeure notices to European buyers, blamed the closed pipeline and gave no date for resuming. At least three refiners had late-September cargoes cancelled or pushed back as far as November. Three to five million barrels came out of near-term supply.^[9] A force majeure notice is not a price dispute or a quota cut. It is a seller telling a contracted buyer that it cannot deliver. Only weeks earlier, in August, those same refiners had been promised their full September volumes, with loading offered at Sidi Kerir in Egypt, at Yanbu, or by ship-to-ship transfer off Malta.^[10] Europe absorbed this shortfall, not the United States, which is the rest of the answer to why Brent moved and WTI did not.

The United States Strategic Petroleum Reserve holds 283.8m barrels, the lowest level in any week since October 1982. The figure comes from the Energy Information Administration's weekly series and is dated 25 September. Every other number in this issue is dated the 30th, so this one is the exception. The last time the reserve sat here was the week of 22 October 1982, at 283.4m. It peaked at 726.6m in January 2010, so the reserve is now 39 per cent of its largest size. It is 63m barrels below the low point of the 2022 drawdown.^[11] The monthly path is the more interesting part. The reserve fell 40.8m barrels in May, 31.4m in June, 20.9m in July and 18.2m in August. In September it fell 2.8m. The pipeline was attacked in September and Brent went through $100, and the reserve hardly moved.

Three explanations fit and we cannot choose between them. The earlier sales may have simply finished. The barrels may be deliberately held back, with winter and the midterm elections ahead. Or there may be less room to act, since drawing hard from 283.8m is a different decision from drawing hard from 415m. A further request for proposals went out on 29 September covering a final 40m barrels, for delivery in November and December. September's stillness therefore comes before that last tranche moves. One caution about strategic reserves generally: there is no reliable world figure. National series mix state-owned barrels with industry stocks held under legal obligation, they are published monthly and late, and China, probably the second-largest holder, publishes nothing. On 30 September Energy Secretary Chris Wright said that “several European member countries have released only a fraction” of the crude oil and products they had pledged.^[12] The American releases are exchanges rather than sales, so the barrels are contracted to come back with a premium. Whether they do, and at what price, is not yet known.

The three American equity indices disagreed by more than six percentage points in a single month. The Dow Jones Industrial Average fell 4.3 per cent. The S&P 500 fell 0.45 per cent, closing at 7,651.54. The Nasdaq Composite rose 1.9 per cent.^[7] Rising long yields did the sorting. Companies whose value sits in profits far in the future held up better than industrial and dividend-paying companies, which is the opposite of what most people expect from higher rates. Europe fell 2.5 per cent on the STOXX 600. The VIX rose to 16.34, a low reading by any historical standard. The dollar index gained 2.0 per cent, so an investor holding dollars kept more of a poor month abroad than a local investor did.

Investment-grade credit spreads barely moved in September. The option-adjusted spread on the broad investment-grade index went from 0.80 to 0.84, a change of four basis points. Over the same weeks Moody's Aaa corporate yield rose 39 basis points to 6.29 per cent, and the Baa yield rose 42 to 6.76.^[13] Corporate bond yields rose because government bond yields rose. The market's view of corporate credit quality stayed where it was. Across 2026 the same pattern holds more strongly: Aaa yields are up 94 basis points and investment-grade spreads up five. High yield behaved differently. Its spread widened 49 basis points in September to 3.12, which is about four fifths of its whole move for the year. So risk was repriced in September, in the part of the bond market that does not finance large technology companies.

The five largest cloud companies had issued about $220bn of bonds during 2026 by 10 August, against roughly $70bn in the whole of 2025. The first quarter alone accounted for about $115bn. BNP Paribas compiled the figures and Reuters reported them.^[14] S&P Global Ratings expects Alphabet, Amazon, Meta, Microsoft and Oracle to spend about $750bn on capital expenditure this year, equal to 38 per cent of their combined revenue.^[15] FactSet measured the funding shift: borrowing covered 9 per cent of these companies' capital spending in their 2024 financial year and 32 per cent by the middle of 2026.^[16] Their credit ratings now cover four notches, from Microsoft at AAA to Oracle at BBB with a negative outlook, two steps above high yield.^[15] Oracle spent $55.7bn in its 2026 financial year, 162 per cent more than the year before, and reported free cash flow of minus $23.7bn.^[17] Of 91 bonds these companies issued during 2026 with comparable pricing, 78 traded at a higher yield on 28 July than the yield they were sold at. The median rise was about 22 basis points.^[14]

Meta returned 26.8 per cent in September, on our own series, and its new app reached the top of the App Store. The shares closed at 725.18 on 30 September against 572.34 on 31 August. Meta released the model family Muse Spark 1.3 on 2 September and the Muse agent itself on the 8th. The shares rose 6.6 per cent the next day. The app then reached number one on Apple's free iPhone chart in the United States on Friday 18 September, ten days after launch, on more than 730,000 American downloads, according to Sensor Tower. That put it ahead of ChatGPT, Google's Gemini, Anthropic's Claude and Meta's own Instagram. On the following Monday, 21 September, the shares rose 11.3 per cent, their best day of the month. Muse passed 5m downloads by 30 September.^[18][19] For the year Meta is up 10.1 per cent, so September recovered a weak eight months. The company expects to spend between $125bn and $145bn on capital expenditure in 2026, and its filings disclose about $279bn of data-centre lease obligations starting between the rest of 2026 and 2036.^[20]

Every frontier AI laboratory released a model in September except Mistral, which raised €3bn instead. Anthropic released Fable 5.1 and Mythos 5.1 on the 1st, Opus 5.5 on the 22nd and Sonnet 5.5 on the 28th. Google released Gemini 3.8 Flash on the 2nd and 3.8 Live on the 15th. xAI released Grok 4.7 on the 21st. OpenAI released GPT-6 Sol and GPT-6 Luna on the 22nd, then held its developer conference in San Francisco on the 29th, where it launched Dots, a set of always-on agents inside ChatGPT, along with GPT-6.1 Sol. China released three models: DeepSeek V4.1 Flash on the 10th, then Alibaba's Qwen3.8-Omni-Flash on the 18th and Qwen3.8 Max Prime on the 23rd.^[21] Mistral's round closed on 8 September at a €21bn valuation, led by Samsung Electronics, and the company calls it the largest equity fundraising ever completed by a European technology company.^[22]

The two largest private AI companies gave opposite answers on going public. Anthropic filed a confidential draft registration statement with the Securities and Exchange Commission on 1 June. Press reporting points to a listing on Nasdaq in November, and some observers expect a valuation of around $2tn.^[23] OpenAI ruled out this year. Sam Altman said plainly at the developer conference on 29 September that an OpenAI listing would not happen in 2026, citing the work still required on safety and alignment. He said the company has to be able to make “confident safety claims” first, and told CNBC he has no set timeline and does not want to be “barrelling forwards” while that work feels in flux. He had put it more bluntly on 12 September, calling an initial public offering now an “ill-advised moment”. Chief Financial Officer Sarah Friar framed it as a question of readiness rather than reluctance. She said OpenAI would list “when the time is right for our business”. She called an offering “not a destination” but a milestone, and another form of fundraising. She also said the company does not want the distraction of going public while it concentrates on safety.^[24] Separately, Reuters has reported that OpenAI is laying groundwork for an eventual listing at up to $1tn. So the sequence is a filed registration at one company and an explicit deferral at the other, with next year left open.

Gold fell 6.7 per cent in September, in the month its exchange-traded funds reportedly took their largest inflow on record. Spot gold closed at $4,155.93 against $4,452.27 at the end of August, and is down 3.7 per cent for the year.^[7] The money in question is retail and institutional buying through physically backed gold exchange-traded funds, not central bank reserve buying, which is the paragraph after this one and moves on a different clock. Reported September inflows into those funds were about $17bn. Roughly $10.6bn went into funds listed in North America, $4.4bn into European-listed funds and $2.1bn into Asian-listed ones. That split is by where the fund is listed, not by where the investor lives.^[25] The buying did not set the price. The 49 basis point rise in the ten-year real yield did more to explain it, because gold pays no income and a higher real yield raises the cost of holding it. One caution on that flow number before anyone repeats it. August was reported at $18bn and September at $17bn, while the third quarter as a whole is given as $26bn. The three figures are not consistent. The August number comes from the World Gold Council's own page and is reliable.

Central banks bought about 130 tonnes of gold in the year to 31 July, against roughly 160 tonnes in the same period of 2025. The date matters, because the World Gold Council publishes this series about two months in arrears. September will not be available until November. Poland leads the buyers at 90 tonnes and holds 640 against a stated target of 700. China added 60 tonnes and holds about 2,366. Uzbekistan added 40, Kazakhstan 29 and the Czech Republic 12. The two largest sellers are Turkey at 85 tonnes and Russia at 50.^[26] Turkey imports its energy and has been swapping gold for dollars to support the lira. Russia exports energy and cannot refine it, for the reasons in the next paragraph. Both countries are raising money. The buyers are not.

Ukraine has spent the year destroying Russian refineries, and Russia now exports more crude oil and earns less from energy overall. Strikes ran close to daily through the summer, 32 of them across July and August. Estimates of the damage differ and both deserve naming: Ukraine's General Staff claimed on 4 July that 42.7 per cent of Russian refining capacity had been disabled, while the International Energy Agency said more than 20 per cent.^[27] Omsk, the country's largest refinery, was hit, as was Yaroslavl, one of the five largest. Perm was left running at 28 per cent of its crude unit capacity. Crude that cannot be refined at home is shipped instead. Crude exports averaged 3.71m barrels a day in the four weeks to 27 September, the highest since early August, and the four-week export value rose $290m to $2.39bn, the highest since May. Those figures come from Bloomberg's vessel tracking, reported by The Moscow Times on 29 September.^[28] Combined crude and product exports nonetheless fell to about 28m tonnes a month, the lowest since the pandemic, according to Raiffeisenbank.^[29] Diesel exports ran near 1m barrels a day before the attacks and are now banned. European and Asian diesel passed $200 a barrel, a refining margin Russia cannot collect. The federal budget assumes Urals at $59. Defence spending is 12.9tn roubles this year, and the 2027 draft raises it to 17.1tn, which is 6.9 per cent of national output and 35 per cent of all federal spending.^[30]

Three assets commonly sold as inflation protection moved in three directions in September. Oil rose 14.4 per cent. Gold fell 6.7 per cent. Inflation-linked Treasuries fell, because their real yield rose 49 basis points. Bitcoin, which is sometimes added to the same list, rose 6.4 per cent to $83,553 and remains down 4.5 per cent for the year.^[7] They differ because they protect against different things. Oil responds to a supply shock. Gold responds to the real interest rate. Index-linked bonds respond to realised consumer prices and to duration at the same time. The question worth asking is not which one is the real hedge. It is which risk you are actually trying to cover, and whether the thing you own covers it.

The Cockpit · September 2026

Methodology & sources

This report is a set of instruments, not a set of instructions. What follows is how each figure is built, where the data comes from, and how it is checked, so that any reader can trace a number to its origin and judge it independently.

How the figures are built

The seven model portfolios and the asset-class series are total-return, indexed to 100 at the start of each period, and expressed in US dollars. Where a simulated expense is shown, it is applied as a daily drag on net asset value, and rebalancing follows the frequency selected in each widget. Yields, spreads and inflation are plotted as reported, without adjustment.

Sources

The data in this report comes almost entirely from two public sources: Yahoo Finance for market prices, and FRED, the Federal Reserve Bank of St. Louis, for the macro series. Fund fact sheets are the reference used for cross-checking. This is public, end-of-day data, not an institutional terminal feed.

1. Market prices and total returns: Yahoo Finance and EODHD, using dividend-adjusted closing prices for each ETF and index. The Swiss-listed sleeve, the Italian MIB fund and the two euro-hedged commodity ETCs are taken from EODHD, which prices them where Yahoo does not do so reliably.
2. US Treasury nominal and real (TIPS) constant-maturity yields, and the effective federal funds rate: FRED (Federal Reserve Bank of St. Louis).
3. Moody's seasoned Aaa and Baa corporate bond yields, and ICE BofA investment-grade and high-yield option-adjusted spreads: FRED.
4. US consumer price index (CPI-U): US Bureau of Labor Statistics, via FRED.
5. Portfolio weights and fund characteristics: the respective ETF issuers' published fact sheets, used for cross-checking.
6. LME copper cash settlement: the daily table published by Westmetall. The copper card is the LME cash price, not the COMEX future.

News and events

1. Central bank policy rates in force on 30 September 2026, each the rate in force on the date and never a monthly average: Federal Reserve target range via FRED (DFEDTARL, DFEDTARU); European Central Bank deposit facility via FRED (ECBDFR); Bank of England Bank Rate, IADB series IUDBEDR; Swiss National Bank policy rate, data portal cube snbgwdzid series LZ; Bank of Japan, Change in the Guideline for Money Market Operations, 18 September 2026. Collected in our own policy_rates.json.
2. Federal Open Market Committee decision of 16 September 2026, the accompanying statement, and the Summary of Economic Projections published the same day, including the distribution of participants’ rate projections and the median path against the June projections. Chair Warsh’s remarks come from his post-meeting press conference. The chair submits no projection of his own, so the eighteen dots are the other participants.
3. Overnight market rates at 30 September 2026, which are distinct from the policy rates above: effective fed funds, €STR, SONIA, TONA and SARON. SARON is a secured repo rate, the others unsecured. Our own global_curves.json.
4. Ten-year government yields at 30 September 2026: US Treasury daily par yield curve; European Central Bank euro area yield curve, all issuers; Deutsche Bundesbank term structure on listed Federal securities; Bank of England nominal government liability curve; Japanese Ministry of Finance JGB rates; Swiss National Bank spot rates. The measurement bases differ between these publishers, so any spread taken across two of them is approximate. Our own `global_curves.json`.
5. French, Italian and German ten-year benchmark government bond yields, and the OAT to Bund and BTP to Bund spreads, at 30 September 2026: Banque de France and Deutsche Bundesbank benchmark series, with the Italian close corroborated by Italian market reporting. The two sources independently put the Bund at 3.58 per cent on 30 September, and both spreads reconcile exactly to the quoted yields. The 2 October reading, the one-year range and the November 2011 record come from the same series. These are benchmark bond yields, NOT the modelled zero-coupon curve used elsewhere in this issue.
6. US Treasury nominal and real constant-maturity yields and the effective federal funds rate: Federal Reserve H.15 via FRED. Our own ust_curve.csv at 30 September 2026.
7. Index closes, commodity prices, exchange rates and bitcoin, with monthly and year-to-date returns: our own key_levels.csv at 30 September 2026.
8. East-West pipeline (Petroline) attack of 10 September 2026 and the restart of 22 September 2026, including the strike on three pumping stations and the satellite imagery: Reuters, with corroborating reports from Al Jazeera and CNBC.
9. Saudi Aramco force majeure notices to European refiners and the cancellation of October allocations: Bloomberg, 18 September 2026.
10. Saudi Aramco's earlier full September allocations to three European refiners, with loading options at Sidi Kerir, Yanbu or ship-to-ship off Malta: trade reporting, August 2026.
11. United States Strategic Petroleum Reserve: Energy Information Administration, Weekly Petroleum Status Report, Weekly US Ending Stocks of Crude Oil in the SPR, series WCSSTUS1. 2,296 weekly observations from 20 August 1982 to 25 September 2026, held in our own spr.csv. The level, the October 1982 comparison, the share of the 2010 peak, the gap to the 2022 trough and every monthly change are computed by us from that series, not quoted. The chart is drawn from the same file.
12. Chris Wright, United States Secretary of Energy, statement on European member countries' releases, 30 September 2026.
13. ICE BofA investment-grade and high-yield option-adjusted spreads, and Moody's seasoned Aaa and Baa corporate bond yields: FRED. Our own credit_spreads.csv at 30 September 2026.
14. Hyperscaler bond issuance during 2026 to 10 August, and the secondary-market comparison of 91 bonds at 28 July 2026: BNP Paribas data reported by Reuters.
15. Capital expenditure estimates for Alphabet, Amazon, Meta, Microsoft and Oracle, and their credit ratings and outlooks: S&P Global Ratings.
16. Share of hyperscaler capital spending funded by incremental debt, 2024 financial year against mid-2026: FactSet.
17. Oracle capital expenditure and free cash flow for the 2026 financial year: Oracle's own annual report filed with the Securities and Exchange Commission.
18. Meta share prices, monthly and year-to-date total returns and individual daily moves: our own d/META.US.json at 30 September 2026, dividend-adjusted.
19. Muse App Store ranking of 18 September 2026, United States download estimates and the 5m download milestone of 30 September 2026: Sensor Tower estimates as reported in the technology press. Download counts are third-party estimates, not figures published by Apple or Meta.
20. Meta capital expenditure guidance for 2026 and data-centre lease obligations: Meta's quarterly report for the period ended 30 June 2026, filed with the Securities and Exchange Commission.
21. Model release dates for Anthropic, Google, xAI, OpenAI, DeepSeek and Alibaba, and the OpenAI developer conference of 29 September 2026: each company's own announcements and release notes.
22. Mistral's €3bn round of 8 September 2026, its €21bn valuation and the lead investors: the company's own announcement.
23. Anthropic's confidential draft registration statement of 1 June 2026: the company's own announcement. The expected listing month and the valuation figure are press expectations, not company statements, and are described as such in the text.
24. Sam Altman and Sarah Friar on the timing of an OpenAI listing: CNBC's coverage of the developer conference, 29 September 2026, and earlier remarks reported on 12 September 2026. The report that OpenAI is preparing for an eventual listing at up to $1tn: Reuters.
25. Gold exchange-traded fund flows for September 2026 and the regional split by listing: World Gold Council. The inconsistency between the monthly and quarterly figures is noted in the text and remains unresolved at the time of publication.
26. Central bank gold purchases and sales, year to date to 31 July 2026, by country: World Gold Council. This series is published roughly two months in arrears, which is why no September figure appears.
27. Strikes on Russian refining capacity, the count for July and August 2026, and the two competing damage estimates: the Ukrainian General Staff statement of 4 July 2026 and the International Energy Agency. The two are given side by side because they differ materially and one is a belligerent's own estimate.
28. Russian crude export volumes and the estimated value of shipments: Bloomberg vessel-tracking data, reported by The Moscow Times on 29 September 2026. These estimate the value of cargoes, not Russian government tax receipts.
29. Combined Russian crude and petroleum product exports at about 28m tonnes a month: Raiffeisenbank analysts, as reported.
30. Russian federal budget assumptions for Urals, 2026 defence spending and the 2027 draft: Russian Finance Ministry budget documents as reported, September and October 2026.

How it is checked

This report is produced with the help of an AI assistant working under the supervision of Jonathan Castella, CFA, who authors it and is responsible for what it says. Before publication, the underlying data passes hygiene checks, and individual figures are spot-checked against issuers' fact sheets and the primary series. These steps reduce error, but they do not eliminate it: mistakes remain possible.

Corrections and liability

This report is educational. It examines frameworks, regimes and history; it is not investment advice, and it recommends no security, fund or allocation. Nothing here should be relied upon as the basis for a financial decision, and the author accepts no liability for any decision taken, or any consequence arising, from its use.

Accuracy matters to the publication. If you find an error, or have a correction, a question or a comment, it is welcome: write to socrates@socrates-on-investing.com.