Cybersecurity
AMD and Abiomed Duke It Out for Title of S&P 500's Top Stock
Photographer: Ashley Pon/Bloomberg
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Abiomed Inc. was king again for a couple hours. And then semi stocks woke up.
The maker of the world’s smallest heart pump briefly reclaimed its spot as the top dog in the Standard & Poor’s 500 Index on Thursday after second-quarter sales topped expectations and pushed the stock’s year-to-date gain above 88 percent. The champagne had barely been popped before Advanced Micro Devices Inc. stole the mantle amid a rebound in chip stocks that extended its annual performance back above 90 percent.