CorMedix Inc. (AMEX: CRMD) shares gained 20.5% to $2.14 Wednesday. Volume of 157,948 proved nine times its full-day average. CRMD is a pharmaceutical company that seeks to in-license, develop and commercialize therapeutic products for the prevention and treatment of cardiac and renal dysfunction.

NVIDIA Corporation (Nasdaq: NVDA) traded in 57,205,492 shares Wednesday, nearly tripling its daily average. Prices for NVDA leapt 12.5 percent to $22.85. The chip maker’s stock is now up more than 100% over the past three months amid upbeat analyst reviews of its recent initiatives, particularly in the tablet and smart phone markets.

RF Monolithics, Inc. (Nasdaq: RFMI) fell 5.7 percent Wednesday to $1.82 Volume for the stock was 252,129 shares or more than eight times its daily average. Tuesday, the Dallas-based RFMI reported quarterly net income of $160,000 or $0.01 per share.