The S&P 500 was up 0.6% in midday trading to 2,341.99.
The Dow Jones Industrial Average was up 0.6% to 20,682.15.
The NASDAQ was up 0.5% to 5,835.97.
The yield on a 10-year Treasury bond was up 0.2% to 2.24%.
The price of gold rose 0.3% to $1,290.
Auxilio Inc. in Mission Viejo was up 3% to $6.49 and a $61 million market cap on high volume. The print management and IT security firm had by midday traded shares at a rate more than double its 90-day average.
Kush Bottles Inc. in Santa Ana was down 6.6% to $2.54 and a $128 million market cap on moderate volume. The company makes packaging for the cannabis industry.