Despite the market entering a bullish seasonal period known as the "Santa Claus rally," McMillan advises investors to remain vigilant.

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.

The Santa Rally could have already started, and this year, it’s packing a punch. Every trader worth their salt knows about the magic week that starts on Christmas Eve and stretches to New Year’s Eve.