From the end of May, the S&P 500 was up 1.5% in early trading on Friday. But many stocks of semiconductor manufacturers and providers of related computer hardware had soared by double digits.

Taiwan Semiconductor Manufacturing Co. (TSMC) lost 2.5% in its US-listed shares, while the Philadelphia Semiconductor Index ...

Major stock indexes ceded early gains on the stock market today, but the session still served up plenty of strong movers.