By Chelsey Dulaney

Chip giant Samsung gave what was by all accounts a rosy update today, projecting a 19-fold surge in quarterly earnings.

That wasn't enough to meet investors' lofty expectations. Samsung shares slid in South Korea, sending the benchmark Kospi index down nearly 5% and sparking a selloff in chip stocks globally.

Futures contracts tied to the Nasdaq-100 are down, with shares in SpaceX slipping ahead of the rocket maker's inclusion in the index today. Contracts tied to the S&P 500 and Dow are relatively muted.

Meanwhile, energy prices are drifting higher after Iran's Revolutionary Guard fired at two commercial ships near the Strait of Hormuz. Brent crude is climbing back toward $73 a barrel, while European natural gas prices also gained.

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