Gainers

• GBS Inc. (NASDAQ: GBS) rose 72.3% to $5.58 in pre-market trading. The company markets saliva test for diabetes management and previously announced collaboration on covid-19 diagnostic with Harvard's Wyss Institute.

• Field Trip Health Ltd. (NASDAQ: FTRP) shares rose 30% to $6.25 in pre-market trading. HC Wainwright & Co. initiated coverage on Field Trip Health with a Buy rating and announced a price target of $20.

• Focus Universal Inc. (NASDAQ: FCUV) rose 25.1% to $6.38 in pre-market trading after dropping 15% on Tuesday. Focus Universal priced 2 million shares at $5 per share to raise $10 million for its initial public offering on the Nasdaq.

• Baudax Bio, Inc. (NASDAQ: BXRX) shares rose 17.5% to $0.74 in pre-market trading. Baudax Bio’s CFO Richard Casten recently reported the purchase of 50,000 shares at an average price of $0.51 per share in a Form 4 filing.

• Anaplan, Inc. (NYSE: PLAN) rose 16.8% to $70.08 in pre-market trading after the company reported better-than-expected Q2 results and issued Q3 sales guidance above estimates. The company also raised FY22 sales guidance.

• China Online Education Group (NYSE: COE) shares rose 9.8% to $3.46 in pre-market trading after surging over 13% on Tuesday.

• LAIX Inc. (NYSE: LAIX) rose 8.5% to $1.28 in pre-market trading after jumping over 11% on Tuesday. LAIX recently posted a Q2 loss of $0.04 per share.

• Caleres, Inc. (NYSE: CAL) shares rose 8.5% to $26.71 in pre-market trading after the company reported upbeat results for its second quarter. The company said it sees FY21 adjusted earnings of $3.25 to $3.50 per share.

• Ambarella, Inc. (NASDAQ: AMBA) rose 8.1% to $112.00 in pre-market trading after the company reported better-than-expected Q2 results and issued Q3 sales guidance above estimates.

• Atai Life Sciences N.V. (NASDAQ: ATAI) rose 8.1% to $17.72 in pre-market trading. The company, earlier during the month, reported worse-than-expected Q2 financial results.

• RenovoRx, Inc. (NASDAQ: RNXT) rose 7.5% to $10.74 in pre-market trading after dipping around 38% on Tuesday. The company was recently granted FDA clearance for 'Catheter, Intravascular Occluding, Temporary.'

• Skillz Inc. (NYSE: SKLZ) shares rose 6.8% to $12.58 in pre-market trading after gaining around 11% on Tuesday.

• The OLB Group, Inc. (NASDAQ: OLB) rose 5.6% to $4.52 in pre-market trading after climbing over 11% on Tuesday.

• Dynavax Technologies Corporation (NASDAQ: DVAX) rose 5.3% to $20.50 in pre-market trading. HC Wainwright, on Tuesday, maintained a Buy rating on the stock and raised its price target from $20 to $23.