Pure Storage will replace Patterson Companies in the S&P MidCap 400 index before Friday's open, with PDCO stock moving down to the S&P SmallCap 600 index, S&P Dow Jones Indices announced.
Patterson will replace Chico's FAS, which is being acquired by private equity firm Sycamore Partners.
PSTG stock rose 6% early Wednesday, signaling a move back above its 50-day and 21-day line. The data storage firm could flirt with a trendline entry slightly above 37.
PDCO stock rose slightly, but below its 50-day and 200-day lines.
More mutual funds and ETFs track the SmallCap 600 than the MidCap 400.
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