NEW YORK (AP) -- Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and the Nasdaq Stock Market:
Twitter Inc., up $18.90 to $44.90
The social network's stock-market debut was the most anticipated since Facebook last year but it exceeds even Wall Street's lofty expecations.
J.C. Penney Co. Inc., up 43 cents to $8.13
Comparable store sales rose last month, the first time the struggling retailer has seen that happen in nearly two years.
American Eagle Outfitters Inc., up 60 cents to $15.25
The teen retailer said the quarter that just ended wasn't as bad as it had feared.
International Game Technology, down $2.43 to $17.18
The global gaming products company fell well short of most profit expectations for the fourth quarter and the year.
Whole Foods Market Inc., down $7.21 to $57.26
Facing increased competition, the grocer's fourth-quarter revenue disappointed investors, as did its outlook for all of 2014.
The Wendy's Co., down $1.04 to $8.05
The burger chain expects adjusted fourth-quarter earnings, before taxes, interest, and other items, to fall 10 percent.
HomeAway Inc., up $4.61 to $33.70
Quarterly profit spiked 63 percent at the vacation rental website operator, with average revenue per listing up 16 percent.
SolarCity Corp., down $9.96 to $49.69
The California solar energy service provider blew away revenue expectations, but adjusted earnings came up a little short.