S&P 500 and Nasdaq Composite benchmarks poised for steepening declines after the opening bell.

U.S. stock futures fell Thursday, pointing to a steepening rout in the S&P 500 as investors became unsettled by the Federal Reserves dour outlook as well as conflicting signals about when vaccines may become available.
Futures tied to the S&P 500 dropped 1.2%, suggesting that the benchmark may fall for a second day after the opening bell in New York. Contracts tied to the Nasdaq Composite fell around 1.3%, pushing the tech-heavy index further into negative territory for the month.
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