AXT Inc's stock surged 14.21% in pre-market trading, marking a significant upward movement for the semiconductor materials company following a period of sustained profit-taking that had pushed the stock into oversold territory.

The technical rebound phase is supported by fundamental factors, including China's continued tightening of export controls on indium phosphide (InP) and upstream high-purity indium. With rejection rates for export applications from U.S. and Japanese companies exceeding 80%, AXT benefits as a leading U.S.-listed InP substrate supplier in a globally constrained market where it and two other companies collectively control over 90% of production capacity.

Additional tailwinds came from the broader semiconductor equipment and optical communication sectors, which rallied strongly in overnight trading within a positive market context for technology stocks driven by broader geopolitical developments.