NEW YORK (AP) — Stocks that are trading heavily or have substantial price changes on Wednesday:
Advanced Micro Devices Inc. (AMD), up $2.41 to $126.94.
The chipmaker announced a line of artificial intelligence chips.
UnitedHealth Group Inc. (UNH), down $34.87 to $456.44.
The insurer said it expects pent-up demand for surgeries to increase costs.
Anterix Inc. (ATEX), up $1.15 to $34.10.
The wireless communications company reported strong fiscal fourth-quarter earnings.
Logitech International S.A. (LOGI), down $7.37 to $56.53.
CEO Bracken Darrell resigned from the maker of keyboards, webcams and other computer peripherals.
Sonos Inc. (SONO), down 17 cents to $16.12.
The audio products maker is cutting 7% of its workforce.
Plug Power Inc. (PLUG), up 8 cents to $11.
The fuel cell maker gave investors an encouraging financial and production update.
Toyota Motor Corp. (TM), up $8.26 to $166.35.
The automaker's shareholders endorsed Akio Toyoda’s reappointment as chairman.
Vodafone Group (VOD), up 15 cents to $9.30.
The wireless carrier agreed to merge with Three U.K. to capitalize on the rollout of next-generation 5G wireless technology in the U.K.