Wall Street on Thursday was off to the races after President Donald Trump exhorted traders to "go out and buy stock now" following the announcement of a trade deal between the U.S. and the United Kingdom - the first of its kind since Trump's imposition of sweeping reciprocal tariffs in April.

Shares of Rigetti Computing ( RGTI 2.47%) are skyrocketing on Thursday. The quantum computing start-up's stock surged 10.5% as of 2:50 p.m. ET and was up as much as 12.3% earlier in the day. The rise comes as the S&P 500 gained 1.3% and the Nasdaq Composite rose 1.8%.

U.S. stock futures point to a higher open after President Donald Trump said in a social media post he planned to announce a trade deal on Thursday.