Tech sells off, London rallies, and nobody's circumstances changed much

A tech-led slide erased a trillion dollars of US market value in a day while London had its best week in six months on defensive stocks. Neither move was about new economic facts so much as who was already holding what.

Abhineet RaiFounder · Wealth Adviser Week ending Friday 16 October 2026 About a four-minute read

The week in figures

Each figure as at its own date · sources below

Bank Rate 3.75% Unchanged15 Oct ECB refinancing rate 2.65% Unchanged16 Oct Fed funds target 3.75–4.00% Unchanged15 Oct UK 10-year gilt 5.38% −2 bps14 Oct US 10-year Treasury 5.09% −15 bps16 Oct US 2-year Treasury 4.74% −6 bps16 Oct GBP / USD 1.3335 +0.9%16 Oct GBP / EUR 1.1850 +0.4%16 Oct Brent crude — Unavailable

UK CPI inflation 3.1% +0.2 pp31 Aug

The same AI-financing worry has been sitting in plain sight for months

The headline move this week was the fall in US technology shares, led by companies that build or finance AI infrastructure. CoreWeave fell roughly 12% on Friday and about 25% over five sessions, and its bonds sold off hard enough that yields on them rose above 15%. The worry behind it is not new: that data centre operators have borrowed heavily against revenue that depends on AI products turning profitable before the debt comes due.1

What changed was not that worry but the price people were willing to pay while holding it. The S&P 500 and Nasdaq had their worst week since June, down 1.95% and 4.48% respectively, while the Dow actually gained 0.67% over the same five days.2 That split is the signature of a correction in one crowded trade rather than a reassessment of the economy. Nvidia's chief executive, touring Europe as his own stock fell, told investors "all of this is going to pass," which is a strange thing to need saying if nothing structural were in question.3

London told a cleaner story. The FTSE 100 rose 3.1% on the week, its best since early April, on a rotation into tobacco, drinks, housebuilders and defence names, helped by the Chancellor repeating his commitment to fiscal discipline.4 That is money leaving one consensus, not money discovering a new fact about Britain. UK gilt yields fell on Wednesday's stronger-than-expected GDP figure, then climbed back as the same resilience raised the odds of another Bank Rate rise and left the Chancellor less room in a Budget due at the end of this month.5 A single week of flows moving out of one trade and into another does not, on its own, tell you which crowd had it right. It tells you how tightly each was holding on.

Abhineet RaiFounder · Wealth Adviser, Rai Wealth Management

Equities

US · UK · India

The S&P 500 fell 1.1% on Friday to 7,659.44 and the Nasdaq fell 2.1% to 26,140.03, taking the week's losses to 1.95% and 4.48% respectively, both indices' worst week since June.6 The fall was concentrated in AI-linked names: CoreWeave lost about 25% over five sessions as concern grew over debt-funded data centre spending.1
The FTSE 100 closed the week at 10,881.90, up 3.1%, its strongest week in six months, as investors rotated into tobacco, drinks, housebuilders and defence stocks.4 Banks fell on Friday on reports the Chancellor will raise taxes on the sector in his Budget.7
India's Nifty 50 gained 2.78% on the week to 23,146.15 and the Sensex gained 3.11% to 74,729.27, both their strongest weekly gains since April, led by IT earnings and a recovering rupee.8

Rates & Fixed Income

UK · US

The 10-year gilt yield stood at 5.38%, down 2 basis points on the week, having fallen sharply on Wednesday's stronger UK GDP reading before climbing back as the same data raised expectations of a Bank Rate rise next month. UK 10-year gilt: 5.38% (−2 bps), as at 14 October 2026.
The US 10-year Treasury yield ended the week at 5.09%, down 15 basis points, having spiked after Wednesday's inflation data before reversing as the tech sell-off drove demand for safer assets.
Neither the Bank of England, the Fed nor the ECB met this week: the Bank's next decision falls on 5 November, the Fed's on 28 October, and traders were pricing a roughly 95% chance of a Bank Rate rise at that November meeting.9

Commodities

Oil

WTI crude rose 3.2% on the week to $101.91 a barrel, a level that unsettled equity investors already nervous about tech financing.10
The rise added to a week in which higher energy costs were cited by Bank of England officials as a factor keeping inflation risk alive even as underlying growth held up.11

Currencies

GBP

Sterling rose 0.9% against the dollar to 1.3335 and 0.4% against the euro to 1.1850, helped by Wednesday's GDP beat and by the Chancellor's repeated fiscal reassurances through the week.

What I'm Watching

The week ahead

The Bank of England publishes fresh inflation data before its 5 November decision, and markets are already pricing a high chance of a rate rise, so any surprise there will move that pricing quickly.9
The Federal Reserve meets on 27 and 28 October; minutes from its September meeting showed support for another rise this year but no urgency to move this month, which leaves the decision genuinely open.12
The UK Budget falls on 28 October, and the gilt market has already been pricing in some of what it expects, which means the real test is whether the announcement differs from that expectation.13
The European Central Bank meets on 28 and 29 October, with Lagarde having already flagged energy-driven inflation pressure from the conflict in the Middle East.14

Sources

Market Snapshot figures from Bank of England, ECB Data Portal, New York Fed, US Treasury and ONS. Contains public sector information licensed under the Open Government Licence v3.0.

Abhineet Rai

Founder · Wealth Adviser, Rai Wealth Management

Abhineet founded Rai Wealth Management after more than two decades in banking, including spells as a Director in Private Banking at Credit Suisse, Bank of Singapore and HSBC Private Bank in London. He trained at the National Defence Academy in India before taking an MBA, and holds certifications in Investment Planning, Securities & Derivatives, and Regulated Mortgage advice.

20+ years in banking
Credit Suisse · Bank of Singapore · HSBC
NDA-trained, then MBA

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