CPI y/y (GBP) preview: Consensus points to accelerating inflation

The United Kingdom’s Consumer Price Index year-over-year data is scheduled for release on October 21, 2026, at 06:00 UTC. Market consensus forecasts a reading of 3.4%, an increase from the previous month’s 3.1%. This suggests an expectation of accelerating inflation, a key metric for the Bank of England’s monetary policy decisions. This release carries a high impact rating, indicating its potential to significantly influence GBP crosses.

Historically, this release has generated notable price action across GBP pairs. Our data shows EURGBP has experienced a median 1-hour move of 8 pips, with top-quarter releases moving 18+ pips. GBPAUD has seen a median 1-hour move of 20 pips, with top-quarter releases moving 35+ pips. For GBPCAD, the median 1-hour move is 19 pips, and top-quarter releases move 37+ pips. GBPCHF has a median 1-hour move of 13 pips, with top-quarter releases moving 26+ pips. GBPJPY typically sees a median 1-hour move of 17 pips, with top-quarter releases moving 33+ pips. GBPNZD has a median 1-hour move of 19 pips, with top-quarter releases moving 44+ pips. GBPUSD has recorded a median 1-hour move of 14 pips, and top-quarter releases have moved 26+ pips. The direction reliability on GBPUSD after past releases is 59%.

Recent releases have shown varied outcomes. The September 2026 actual reading was 3.1% against a forecast of 2.5%, after which GBPUSD moved -11 pips in one hour. In August 2026, the actual 2.9% matched the forecast, leading to a +7.6 pip move on GBPUSD. The July 2026 actual of 2.6% against a 2.5% forecast resulted in a -1.3 pip move. The June 2026 actual was 2.8%, with GBPUSD moving -14 pips. In May 2026, the actual 2.8% against a forecast of 3.8% saw GBPUSD move -5.0 pips, and April 2026’s actual 2.8% was followed by a -6.5 pip move.