Movers of the hour:
Protara Therapeutics is up 146.89% at $8.74.
Methode Electronics is up 48.35% at $17.22.
Verint Systems is up 25.55% at $32.54.
America's Car-Mart is up 20.92% at $55.26.
Renovaro is up 15.60% at $1.46.
Here are the top stocks upgraded by Wall Street analyst:
Apple has received a rating of Buy from Wedbush with target price increased to $300 from $300.
Apple has received a rating of Buy from Morgan Stanley with target price increased to $273 from $273.
Nvidia has received a rating of Buy from Phillip Securities with target price increased to $160 from $155.
Nvidia has received a rating of Neutral from DA Davidson with target price increased to $135 from $90.
Nvidia has received a rating of Strong Buy from Benchmark with target price increased to $190 from $170.
Nvidia has received a rating of Strong Buy from Needham with target price increased to $160 from $145.
Nvidia has received a rating of Strong Buy from Rosenblatt with target price increased to $220 from $200.
Nvidia has received a rating of Strong Buy from Goldman Sachs with target price increased to $165 from $150.
Nvidia has received a rating of Buy from Evercore ISI Group with target price increased to $190 from $189.
Nvidia has received a rating of Buy from Cantor Fitzgerald with target price increased to $175 from $175.