This price reflects trading activity during the overnight session on the Blue Ocean ATS, available 8 p.m. to 4 a.m. ET, Sunday through Thursday, when regular markets are closed.

This price reflects trading activity during the overnight session on the Blue Ocean ATS, available 8 PM to 4 AM ET, Sunday through Thursday, when regular markets are closed.

AXT, Inc. engages in the design, development, manufacture and distribution of compound and single element semiconductor substrates. It also sells specialty material substrates and raw materials used ...