Key Takeaways The traditional “Santa Claus Rally” failed to materialize this year. Major indices like the S&P 500 and FTSE 100 experienced declines in December instead of the expected seasonal boost.

Some of the biggest winners were mega-cap tech stocks, with Tesla up by 6% while Broadcom, Netflix, and Amazon each gained about 2%.

By Stephen Culp NEW YORK (Reuters) -Wall Street stocks headed lower on Thursday and U.S. benchmark Treasury yields scaled the highest level since April in light, post-Christmas trading. The modest but broad-based sell-off pulled all three major U.