There have been few better stocks to own over the past three months than Palantir ( PLTR 1.42%). The stock more than doubled in that time, far outperforming both indexes and other market leaders. This performance can be traced to several events, notably Palantir's inclusion in the S&P 500 in September and its blowout Q3 earnings.

U.S. stocks slipped Thursday as the market’s big burst following Donald Trump’s election continued to cool. The S&P 500 fell 0.6%, though it’s still near its all-time high set on Monday. The Dow Jones Industrial Average dropped 207 points,