Shares ofTetra Technologies Inc. (NYSE:TTI) tanked 15.06% to $9.25 in pre-market tradingon Wednesday.

The company reported announced a $100 million underwritten public offering of common stock on Tuesday. Tetra Technologies said it plans to use the proceeds for general corporate purposes, including the construction of its Arkansas bromine project.

Gainers

XOS Inc. (NASDAQ:XOS) surged 206.72% to $6.84 in pre-market trading, up from its previous close of $2.23, after the company launched its 2.5MWh Power Hub series.

Wellchange Holdings Co. Ltd. (NASDAQ:WCT) gained 98.91% to $1.83 in pre-market trading, rising from its previous close of $0.92.