Historical View Of Extreme Short-Term Gains In $OEX Components

By Rob Hanna

As I write this around 11am EST both NFLX and CELG are threatening to close up > 50% from their December 24th closing price, just 14 trading days ago. While that sometimes happens with speculative smallcap stocks, it is very unusual to see a largecap S&P 100 stock accomplish such strong gains in such a short period of time. In fact, the last instance of a 50% close to close gain within 15 days for an S&P 100 stock occurred in 2009.  I looked back at other times since 2000 where it has occurred among S&P 100 components, and found only 38 occurrences. Below is the complete list.

2019-01-15

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