UK Annual GDP Growth 2026

The question behind the headline

the U.K.’s full-year growth rate can differ materially from its final-quarter growth. A strong finish does not erase weaker activity earlier in the year when the question uses the annual total.

At the October 4, 2026 market snapshot, 1-2% carried a 74.85% Yes price. Other open contracts included 0-1% at 7.25%; 2-3% at 5.3%. ^[1]

The condition that changes the answer

Use the initial official full-year 2026 real-GDP growth estimate. If absent, use Q4 year-over-year growth; if the relevant publication is still missing when the next quarter is due, use the last available quarter. Boundary ties go to the higher bracket and later revisions are excluded. ^[1]

The contract identifies the February 12, 2027 first Q4 estimate. The fallback can extend observation to the next quarter’s scheduled release. ^[1]

Evidence for and against the leading outcome

The leading range is supported by a complete annual calculation, including the contribution of earlier quarters.

Using a quarterly annualized figure, a nominal measure or a later revised estimate can give a different answer from the contract.

The next useful checks are initial full-year real-growth estimate; q4 fallback only if the annual figure is absent; boundary and revision rules. The linked primary references make the process and named data source inspectable. ^[2][3]

A closer look at the market

The leading listed option was 67.60 percentage points above the next quoted option. That difference measures market pricing, not a vote margin or a measured lead in real-world evidence. A price above 50% still leaves room for another outcome; it is not a guarantee or an independently validated forecast.

The event had approximately $101,073 in total traded volume at observation. That is a record of turnover across this event, not a count of distinct people, a search-volume estimate or proof that every child contract is easy to trade. The analytical quote is fixed to the timestamp shown here; later live prices can differ. ^[1]

The useful conclusion is conditional: the leading option needs to satisfy the whole outcome definition, not just one favorable part of the story.