FatPipe (FATN) shares were almost 80% higher pre-bell Tuesday, a day after the company reported higher fiscal Q3 revenue.
Teradyne (TER) stock was up more than 19% after the company reported late Monday Q4 non-GAAP earnings and revenue that topped analysts' estimates.
FiEE (FIEE) shares were nearly 18% higher, a day after the company reported preliminary Q4 sales of $4 million and earnings of $2 million.