FTSE 100

Equity index · Monthly series · IX-UKX

Latest, October 2026

10,729.8 pts

+1.2% from September 2026

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12.2K88865577November 2016October 2027
History through October 2026, the forecast path to October 2027 (dashed) and its 80% interval (shaded).

Forecast

Forecast for October 2027: 10,802.6 pts, with an 80% interval of 9,105.6 pts to 12,181.4 pts.

Forecast path. Intervals are shown where available.
PeriodForecast80% low80% high
November 202610,718.4 pts10,234.2 pts11,198.2 pts
December 202610,734.7 pts10,204.3 pts11,248.8 pts
January 202710,747.2 pts10,171.0 pts11,264.5 pts
February 202710,757.4 pts9,583.6 pts11,788.2 pts
March 202710,768.5 pts9,584.9 pts11,778.2 pts
April 202710,783.5 pts9,765.5 pts11,650.2 pts
May 202710,779.9 pts9,522.3 pts11,827.5 pts
June 202710,780.5 pts9,857.9 pts11,555.1 pts
July 202710,790.8 pts9,432.3 pts11,897.1 pts
August 202710,792.2 pts9,722.8 pts11,667.3 pts
September 202710,797.2 pts9,079.0 pts12,195.2 pts
October 202710,802.6 pts9,105.6 pts12,181.4 pts

Model: Agentic Investor TSFM (foundation model). Forecast generated 2026-11-14.

AI confidence

Mixed evidence

The tests show no consistent, material advantage over the no-change baseline.

Model: Agentic Investor TSFM (foundation model)

Accuracy vs naive
+8%Matches the no-change baseline over 12 tests (12 tests, 8 won)
Direction
76%No clear edge over a coin flip (109 of 144 calls right in 12 tests)
Turning points
2 of 76Anticipated some turns (76 turns in 12 tests, 0 without a turn)
Error vs baseline
8% lowerError ratio 0.92; 1.00 is a tie.
Tests won
8 / 12Complete rolling backtests; ties count as no win.
Test period
2014-11-01 to 2026-10-0112 observations ahead per test.
80% band coverage
83%Observed outcomes inside the band across all stored test windows.
How this assessment is made

AI confidence describes historical evidence for this forecast, not a probability of being correct. Each backtest fits on data available before its test window. The baseline carries the last value forward. Supported evidence requires at least six complete, non-overlapping tests, an error ratio below 0.90 (rounded to two decimals), and wins in a majority of tests. Ratios from 0.90 to below 1.10 are on par; 1.10 or above is weak evidence. Inconsistent wins produce mixed evidence. For a selected model, only the recent tests excluded from model selection determine this label. These are historical simulations using the available data, not a live trading track record; revisions and foundation-model pretraining can limit how closely they reproduce a past decision. Past performance can change.

Replay past tests

Model comparison

Comparison pendingA new ticker first receives its serving model's forecast and evaluation. An eligible nightly batch can compare four classes, subject to call budgets and retry limits.

Reading

It is above 97% of the 119 earlier readings since November 2016.

Written from the figures by a fixed template; no AI model is involved.

Recent history (24 observations)
The 24 most recent observations, newest first.
PeriodValue
October 202610,729.8 pts
September 202610,606.0 pts
August 202610,824.3 pts
July 202610,868.0 pts
June 202610,497.1 pts
May 202610,409.3 pts
April 202610,378.8 pts
March 202610,176.4 pts
February 202610,910.6 pts
January 202610,223.5 pts
December 20259,931.4 pts
November 20259,720.5 pts
October 20259,717.2 pts
September 20259,350.4 pts
August 20259,187.4 pts
July 20259,132.8 pts
June 20258,761.0 pts
May 20258,772.4 pts
April 20258,494.9 pts
March 20258,582.8 pts
February 20258,809.8 pts
January 20258,674.0 pts
December 20248,173.0 pts
November 20248,287.3 pts

Source

Data: public market data feeds.

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