FTSE 100 Ends Year on Uncertain Note Despite 21% Annual Gain

We start with a big picture view. In 2025, the FTSE 100 delivered one of its strongest performances in years. The blue‑chip UK stock index surged more than 21 % year‑to‑date, outperforming many global markets and setting record closing highs. But as the year draws to a close, there’s a twist. Despite this impressive gain, uncertainty hangs over the market.