Hey there, bargain hunter. The UK economy just posted its strongest quarterly growth since early 2024, and the market barely blinked. That gap between a real data point and a flat market reaction is exactly where the value case gets interesting.
Scoreboard
Q3 GDP: +0.7% quarter-on-quarter. Up from 0.5% in Q2. Year-on-year: +1.9%. September alone came in at 0.2%. The ONS published the first estimate this morning at 7:00 GMT. Construction fell 0.7%, while services did all the heavy lifting, expanding 0.9% on the quarter.
What Actually Happened
The growth number is real, but its engine is narrow. Computer programming and consultancy rose 4.4% in Q3 and helped push information and communication higher. The ONS says the information and communication sector has been the single largest driver of UK GDP growth across all of 2026, with businesses linked to AI and cloud computing reporting the biggest jumps in turnover. The honest caveat: the ONS says it cannot precisely quantify how much of that IT surge is genuinely AI-driven versus ordinary consultancy billing.
The distinction between AI infrastructure spend and AI deployment revenue matters here. Enterprise IT consultancies invoicing for AI deployment work represent a different and often cheaper exposure than the hardware names absorbing scrutiny over capex returns.
What the number is not: a broad-based consumer recovery. Business investment lagged. Construction contracted. Consumer-facing services rose 0.6% in September.
The FTSE 250 Discount
The FTSE 250 is roughly 15% cheaper than the FTSE 100 on a forward price-to-earnings basis, sitting around 15.3 times earnings versus the large-cap index at 18.1 times. Investment trust managers have been flagging this for months: the FTSE 250 can yield more than the FTSE 100, a rare inversion that historically signals deep undervaluation in mid-caps. UBS strategists have argued that UK mid-caps offer stronger earnings momentum and more leverage to a domestic recovery than the globally heavy FTSE 100, with the index still lagging recovery from its post-Brexit de-rating.
A GDP acceleration that is led by IT services is structural good news for domestically focused tech consultancies, managed-service providers, and financial technology platforms sitting in the mid-cap index. These are the businesses that show up in AI adoption surveys without trading at AI-multiple valuations.
What the Budget Could Take Back
The November Budget, delivered by Chancellor John Healey, kept headline corporation tax at 25%. That is the good news. The complication: the bank corporation tax surcharge rises from 3% to 6% starting January 2027, running through March 2028, hitting financial sector names inside the FTSE 250. Business Asset Disposal Relief has its lifetime limit cut to £500,000 from April 2027, reducing the incentive for founder-led growth businesses to list or scale aggressively. The Bank of England is now at 4% after its first hike since 2023, and it has flagged higher inflation projections into 2027.
Rate pressure on UK mid-caps does not arrive in isolation. Rising gilt yields have already been compressing the Chancellor’s fiscal headroom and forcing a repricing of rate-sensitive UK equities.
Bull / Base / Bear
- Bull: AI investment cycle sustains IT services revenue growth. Rate peak proves short. FTSE 250 de-rating reverses as domestic earnings recover, delivering the kind of rapid small and mid-cap catch-up that has historically run 30-50% above the broader market in recovery phases.
- Base: Growth moderates in Q4 as consumer spending softens. FTSE 250 grinds higher but selectivity matters. IT services and domestic financial platforms outperform consumer-facing retail and hospitality.
- Bear: BoE hikes again in February. Inflation stays sticky through mid-2027. Consumer squeeze widens sector weakness beyond construction. The 0.7% headline masks a narrowing base, and Q4 revisions disappoint.
Action Plan
The valuation case for UK mid-caps does not need the GDP number to be perfect. It needs it to be directionally right. Today’s reading is directionally right. Build a position in FTSE 250 names with domestic IT or financial services exposure in thirds: a starter now while the data confirms momentum, a second tranche if the index pulls back on rate-hike nerves, and a third if the BoE signals a pause in early 2027. Avoid construction-heavy and consumer-discretionary names until there is clearer evidence the household squeeze is peaking.
Cheap Investor Checklist
- ONS Q3 GDP first estimate: 0.7% confirmed. Watch for revision in second estimate (average revision since 2000: +0.08 percentage points).
- FTSE 250 forward P/E: ~15.3x versus FTSE 100 ~18.1x. Track the gap monthly.
- FTSE 250 yield vs. FTSE 100 yield: if the inversion persists, treat it as a value flag, but confirm the latest index yields when you check pricing.
- Computer programming and consultancy sector growth: 4.4% in Q3. Watch Q4 business surveys for follow-through.
- Bank Rate: now 4%. Each hike can compress mid-cap multiples.
- Bank corporation tax surcharge: rises to 6% from January 2027 through March 2028. Avoid adding to pure-play UK bank positions before then.
- Business investment: watch the Q3 breakdown for capex data. If investment lags IT-driven output, the recovery remains fragile.
Bottom Line
If the IT services cycle holds and the Bank of England pauses after one or two more hikes, domestically exposed FTSE 250 names are the most mispriced beneficiaries of this GDP number. If the Bank keeps hiking and consumer spending cracks, the discount stays a discount. The data today argues for a measured, staged entry. Not a rush.
