Stocks that traded heavily or had substantial price changes Wednesday:
Qualcomm Inc., up $2.09 to $125.04.
The chipmaker's board of directors approved a $10 billion stock buyback plan.
BlackRock Inc., up $31.62 to $867.81.
The investment firm's third-quarter profit and revenue beat Wall Street forecasts.
Smart Global Holdings, Inc., up $7.91 to $51.72.
The technology company's fiscal fourth-quarter profit and revenue beat analysts' forecasts.
Vistra Corp., up $1.97 to $19.81.
The power generation company announced a $2 billion stock buyback plan.
Pinnacle Financial Partners Inc., up $4.48 to $101.75.
The regional bank operator reported encouraging third-quarter earnings.
Delta Air Lines Inc., down $2.51 to $41.03.
The airline warned investors that rising fuel prices and higher labor costs will challenge its ability to remain profitable.
JPMorgan Chase & Co., down $4.36 to $161.
The bank's latest earnings showed that it struggled to grow revenues with interest rates at near-zero levels.
First Republic Bank, up $4.12 to $204.85.
The bank's third-quarter financial results beat Wall Street forecasts.