Global week ahead: The start of a Santa Rally or more ‘bah humbug’?

Global week ahead: The start of a Santa Rally or more 'bah humbug'?

And just like that… December is upon us.

It’s been a volatile handover from November with U.S. major indices underperforming, dragged down by steep declines for the Nasdaq. Europe’s Stoxx 600 managed to hold onto gains, making November the fifth positive month in a row. But tech stocks also suffered, as concerns over AI valuations and spending plans played out across global stock markets.

So what does this mean for December — can stocks stage a seasonal Santa Rally, or will it be more ‘bah humbug’ in the final trading month of the year?

Macy’s Santa Claus is greeted by traders on the floor at the New York Stock Exchange (NYSE) in New York City, U.S., Nov. 26, 2025.

Brendan Mcdermid | Reuters

The case for a Santa Rally

Fidelity International crunched the numbers: The FTSE 100 has delivered a positive return during December in 24 out of the last 30 years. There could be some festive cheer for the U.K. this year, with markets pricing in a 90% chance the Bank of England will cut the interest rate in December after the budget was seen as avoiding any seriously inflationary measures.

It’s a different picture for the European Central Bank, where markets see zero chance of a cut, but this is also seen as a positive sign as the governing council said policy is in a “good place” in their last set of minutes. European and Asian stocks have tracked the U.S. higher each time expectations rise for a cut at the next Federal Reserve meeting in December, with a near-83% chance of a reduction now expected by markets, according to CME Fedwatch.

The central banks could help bring the festive spirit this December.

The ‘bah humbug’ case

But there are market forces that could leave the bulls finding a lump of coal in their stocking. The drivers behind the volatility in November have not magically disappeared, with some investors and market watchers still voicing concern over the pace of AI hyperscaler spending. Even the ECB made the usual move this week of warning that U.S. tech valuations are stretched because investors have FOMO, “fear of missing out.” The central bank warned of “sharp correlated price adjustments” as a key risk for AI-driven stocks.

Global events in December:

December 10: Federal Reserve policy decision

December 11: Swiss National Bank policy decision

December 18: Bank of England policy decision

December 18: European Central Bank policy decision

December 19: European Leaders summit in Brussels