The S&P 500 increased 0.5% in midday trading to 2,823.55.
The Dow Jones Industrial Average rose 0.3% to 26,137.12.
The Nasdaq jumped 0.7% to 7,385.87.
The yield on a 10-year Treasury bond climbed 0.5% to 2.65%.
The price of gold was down 0.1% to $1,332.
Lantronix Inc. (Nasdaq: LTRX) jumped 10% to $2.45 and a $44 million market cap. The Irvine-based company today said it will showcase a new software release and updates to its IT Management solutions at the Cisco Live Europe show next week in Barcelona. The company is also scheduled to release fiscal second quarter results on Jan. 25.
Kush Bottles Inc. (OTC: KSHB) rose 5.6% to $6.79 and a $407 million market cap. The Santa Ana-provider of marijuana paraphernalia last week reported fiscal first quarter revenue more than tripled; the shares are up more than three-fold since November.