With markets dropping dramatically over the past week, hardly any large stocks have been immune from the selling. But the stocks that have done the best in these turbulent markets have something in common: For one reason or another, their performance has had nothing to do with the markets.
In the entire S&P 500,only five stocks managed to log gains over the past five sessions, as of early trading Wednesday morning.
Two of those companies, Cameron International and AGL Resources, rose on news that they are set to be acquired—Cameron by Schlumberger, and AGL by Southern Co. Another, Hospira, jumped after news that Pfizer's takeover offer was approved by regulators. One more, Best Buy, surged off of a big earnings and revenue beat.
The situation for the fifth rising stock, Keurig Green Mountain, is a bit more complex. The shares do not appear to be responding to any given news event; rather, this battered stock simply appears to trade idiosyncratically.
One analyst told CNBC that investors are merely betting that Keurig, which fell powerfully after reporting earnings in early August, has become oversold. Another made the point that shares of companies that have already gotten hit hard in 2015 have fared better in the selloff.
In fact, there is a popular calculation for how closely a given stock moves in lockstep with the S&P 500, called beta. Keurig's beta over the past five years is 0.49, according to FactSet, which makes it one of the less market-correlated S&P names.