London's blue chips spent the first half of this week inching towards 10,900 and then ran out of road. The FTSE 100 closed on Wednesday at 10,878.12, down 8.04 points, or 0.07%, on the day — its first fall in seven sessions. Measured from Friday's close of 10,816.56, the index is still up around 0.6% over the three completed sessions of the week so far.
The move that mattered most, though, was not in the headline index. On Tuesday the government confirmed the first allocations under its £39bn, ten-year Social and Affordable Homes Programme, releasing close to £10bn of grant funding for more than 70,000 homes across Greater Manchester, the West Midlands, West Yorkshire, South Yorkshire, the North East and Liverpool, with roughly 60% earmarked for social rent. Vistry, named one of 33 Homes England strategic partners and handed £350m — the largest award available at this stage — had its best day in years.
Pulling the other way was crude. Brent fell for a third straight session on Wednesday as Iran and Oman worked on a deal covering a temporary navigational corridor through the Strait of Hormuz, and the oil majors went with it.
The FTSE 100
Monday set the tone. The index added 37.76 points, or 0.35%, to 10,854.32, with mining shares doing the heavy lifting as gold held near $4,640 an ounce and copper stayed elevated. Endeavour Mining rose 5.3%, Antofagasta 2%, Anglo American 1.5% and Rio Tinto 0.4%. Offsetting that, BP slipped 1.2% and Shell 0.3% as Brent eased back from above $93 a barrel, while AstraZeneca fell about 1% and GSK around 0.5%.
Tuesday delivered a sixth consecutive advance — London's longest winning run since May, according to Bloomberg — with the index closing roughly 0.3% higher at about 10,886 as investors decided the latest round of US sanctions on Iran was less punitive than feared. The US Treasury designated 60 Iran-linked entities and individuals, but Treasury Secretary Scott Bessent gave little detail on secondary sanctions and said trading partners were being given room to "remedy bad behavior", while warning that a "major" financial institution would be designated later in the week.
Wednesday broke the streak. Reuters put the energy sub-sector down 0.67% and healthcare down 1.18%, and that combination was enough to tip a very quiet session red. BP fell more than 2% and Shell around 1.4%, with Brent extending its retreat to roughly $86.30 a barrel, a drop of about 2.6% on the day. Miners again cushioned the fall — Antofagasta, Anglo American and Fresnillo each gained more than 1% — while a hotter-than-forecast US inflation print and the wait for Nvidia's results after the Wall Street close kept everyone else on the sidelines. Over the three sessions the pattern was consistent: commodity producers up, oil and pharma down, and very little conviction in between.
The FTSE 250 and mid caps
The mid-cap index has quietly outperformed. The FTSE 250 closed Monday at 24,816.08, up 0.40%, and finished Wednesday at 24,897.84, a gain of 41.79 points or 0.2% on the day — up in all three sessions while the FTSE 100 stalled. The AIM All-Share ended Wednesday at 814.90, down 0.58 of a point, essentially flat, having advanced alongside mid caps for much of the session.
Domestic-facing names drove it. Tuesday's affordable-homes announcement lifted the homebuilders sub-index 1.9%, with Vistry the standout on the FTSE 250 and Barratt Redrow and Persimmon leading the housebuilders inside the FTSE 100. Industrials were firm on the same day, and mid-cap miners joined in on Wednesday: Hochschild Mining jumped close to 7% on its interim results and Fresnillo, which sits in the blue-chip index, added 2.11% to 3,243p.
The reshuffle is also starting to move mid-cap prices. Volex, which completed its move from AIM to the Main Market in July and is expected to enter the FTSE 250 in September's quarterly review, jumped by about a fifth on a trading update, rallying 110p to 644p and pushing its market value back above £1bn.
The week's biggest movers
| Company | Move | Why |
|---|---|---|
| Vistry (VTY.L) | +47.4p to 316p, Tue | £350m Homes England grant |
| Volex (VLX.L) | +110p to 644p, Tue | 28% organic growth in four months |
| Gulf Keystone (GKP.L) | +9.3%, Tue | Swing to first-half profit |
| Melrose Industries (MRO.L) | +8%, Tue | US criminal probe closed |
| Hochschild Mining (HOC.L) | +7%, Wed | Earnings more than doubled |
| Sage (SGE.L) | -3.8%, Wed | Intuit's soft FY27 guidance |
| BP (BP.L) | -2%, Wed | Brent down a third session |
Vistry was the week's clearest single-stock story. The £350m grant supports 3,028 affordable homes and compares with the £278m the group received in total across the whole 2021-26 programme. It also removes a genuine overhang: Vistry's partnerships model had been squeezed while registered providers waited for funding clarity. Bloomberg described the move as the shares' biggest rally since 2020.
Melrose Industries climbed more than 8% on Tuesday after the Orange County District Attorney's Office closed its investigation into the May chemical incident at GKN Aerospace's Garden Grove site in California without filing criminal charges. Melrose simultaneously set out a claims programme of up to $100m and said the plant should be back at full production by 28 September.
Sage led the FTSE 100 fallers on Wednesday, down about 3.8%, for reasons that had nothing to do with Sage. Intuit, which owns QuickBooks, guided to fiscal 2027 revenue of $23.28bn to $23.51bn against expectations nearer $23.72bn — growth of 9-10% after 14% in 2026 — and London's accounting-software proxy was marked down with it.
Entain and 3i Group both fell about 1.96% on Wednesday, Entain under the shadow of an expected demotion. British American Tobacco topped the blue-chip risers that day at +2.84%, with Howden Joinery up 2.19%; Howden has been buying its own stock, cancelling 375,000 shares purchased between 17 and 21 August at between 794.99p and 808.07p.
Company news in focus
The September index review dominated Wednesday's corporate chatter. FTSE Russell's indicative screen pointed to both Entain and Persimmon dropping out of the FTSE 100. Entain's shares have fallen 39.5% over the past year, leaving a market value near £3.5bn; Persimmon closed at 1,151.5p on 21 August, down 15.2% since the start of the year. Volex is indicated to enter the FTSE 250. Confirmed changes follow in early September.
Regulation delivered the other big UK headline. Ofgem said on Wednesday that the energy price cap will rise 4% from 1 October, taking the typical annual bill from £1,663 to £1,723 — an extra £60 a year, or about £5 a month, for the roughly 22 million households on default tariffs. Around 35% of households sit on fixed deals and are unaffected. The regulator attributed the increase to higher wholesale gas prices linked to the conflict in the Middle East, the same thread running through the oil majors and, on Wednesday, through Centrica, which fell around 1%.
On deals, Chesnara set out the shape of its consolidation strategy alongside results: the life and pensions consolidator has completed its fifteenth and largest acquisition, HSBC Life, for £260m, £140m of which was funded by a rights issue, and has a further €110m purchase of Scottish Widows Europe — a closed Luxembourg book owned by Lloyds Banking Group — in the pipeline. Volex, meanwhile, is digesting July's $89m purchase of the remaining 64% of medical technology business KST Signaltek, which the company expects to be immediately earnings enhancing. Peel Hunt lifted its 2027 operating profit forecast for Volex by 8% on the back of the update.
Earnings and trading updates
Late August is thin for UK reporting, but what came through was strong. Hochschild Mining published interims on Wednesday showing first-half revenue up 62% to $844.4m and adjusted EBITDA up 119% to $491.5m, with pre-tax profit of $365.8m against $109.3m a year earlier and earnings per share of $0.37 versus $0.12. The interim dividend was quadrupled to 4.0 cents from 1.0 cent. Costs are the caveat: all-in sustaining cost guidance was raised to $2,380-$2,500 per gold equivalent ounce from $2,157-$2,320, though attributable production guidance of 300,000-328,000 ounces was reiterated. The shares rose about 7% on the day.
Gulf Keystone Petroleum reported on Tuesday and rose 9.3%. The Kurdistan producer swung to a pre-tax profit of $13.0m from a $7.5m loss, with adjusted EBITDA of $51.7m against $41.1m, despite gross average production collapsing to 14,600 barrels a day from 44,100 after a precautionary shut-in between 28 February and 23 June. The offset was price: realised export prices averaged $83.5 a barrel against $27.8, a discount of $8.8 to Dated Brent.
Chesnara's first half showed pre-tax profit of £61.0m against a £4.6m loss a year earlier, operating capital generation up 79% and an interim dividend of 8.16p, 6% higher. Volex's update reported 28% organic growth over four months, driven by data centre demand and broad-based gains elsewhere.
Macro and the Bank of England
The Bank held Bank Rate at 3.75% at its July meeting on a 6-3 vote, with three members voting to raise it to 4%. The next decision lands on 17 September, and a Reuters poll of 64 economists conducted between 13 and 18 August found 56 expecting no change for the remainder of the year. Overnight index swaps in mid-August implied a roughly 72% chance of a hold next month. That balance is uncomfortable rather than settled: July CPI ran at 2.9%, the highest since March, with core at 2.6%, and Ofgem's October cap increase pushes in the wrong direction.
Gilts stayed the pressure point. The 30-year yield sat around 5.73% on Wednesday, close to the highs it reached in May, while ten-year yields remained above 5% — the highest in the G7 — with the autumn Budget still to come. Sterling was firmer, trading near $1.3635 on Wednesday after printing a five-month high just short of $1.37 late last week.
The imported input this week was American: July US personal consumption expenditures inflation came in at 3.7% year on year against a 3.6% forecast, nudging expectations towards a Federal Reserve rate rise next month and lifting the dollar.
Still to come
| When | What |
|---|---|
| Thu 27 Aug | London reacts to Nvidia's results, released after Wednesday's Wall Street close |
| Fri 28 Aug | US preliminary annual payrolls revision — a gilt and rate-expectations input |
| Mon 31 Aug | Summer bank holiday; the London Stock Exchange is closed |
| Early Sep | FTSE Russell confirms September index changes |
| Wed 17 Sep | Bank of England rate decision |
| Mon 28 Sep | Melrose targets full production at Garden Grove |
| Thu 1 Oct | Ofgem's 4% price cap increase takes effect |
Bessent's warning that a "major" financial institution would be sanctioned before the week is out is the other loose thread, and the Iran-Oman talks over the Strait of Hormuz remain the biggest swing factor for Brent — and, on this week's evidence, for Shell, BP and the wider London energy complex.
This article is for information and education only. It is not financial advice or a recommendation to buy, sell or hold any investment. Always do your own research.

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