Semtech's stock plummeted 6.04% at the open on Tuesday, marking a sharp downturn as trading began.

Despite the chip supplier recently beating analysts' fourth-quarter earnings and revenue targets and issuing solid guidance, investors appear to be taking the opportunity to lock in profits. This follows an exceptionally strong run for the stock, which has gained approximately 130% over the past year.

The sell-off occurs alongside a series of positive analyst actions, including several firms raising their price targets on Semtech, indicating that underlying business strength may not be the primary driver of the day's negative price action.