Tupperware, Micron Technology, Capital One and other big movers ahead of Monday’s stock market open

These were the biggest moving stocks ahead of Monday’s open. Gainers: Shares of Micron Technology Inc.
MU,
+8.04%
climbed 5.6% in premarket trading, getting a boost after production cuts announced by rival Samsung Electronics Co. Ltd
005930,
+1.08%.
Shares of Pioneer Natural Resources
PXD,
+5.79%
rose 7.3% after The Wall Street Journal reported that the shale driller had held preliminary talks with Exxon Mobil
XOM,
-0.44%
over a potential acquisition. Stock in Capital One Financial
COF,
+0.31%
dropped 3.5% after reports that Walmart Inc.
WMT,
-0.19%
had sued the credit-card giant to scrap their partnership. Shares of Tupperware Brands Corp.
TUP,
-48.76%
slumped 38% in premarket trading after the food storage products maker issued a going-concern warning late Friday, saying it had hired financial advisors to help steer it through near-term challenges.