US Premarket Movers: Alcoa, Spire, Sysco, Viridian Therapeutics

S&P 500 Index futures rise 0.6% as of 7:50 a.m. in New York. US and Israeli forces pressed ahead with attacks on Iran while the Islamic Republic launched missiles across the Persian Gulf, sending oil prices higher once again.

Here are some of the biggest US movers before the bell: