Today's biggest winners and losers in the stock market.

On this episode of Stock Movers, we look at some of the week's biggest gainers and decliners:

• Shares of SpaceX (SPCX) climbed in their first day of trading on Friday following a $75 billion IPO that smashed records and instantly turned the crown jewel of Elon Musk’s business empire into one of the most-valuable public companies in the world. Space Exploration Technologies Corp., as it is officially known, bundles a rocket launching business, the Starlink broadband service and xAI, the AI segment. But much of the excitement about SpaceX — and its lofty valuation — stems from investors’ faith in Musk’s ability to pull off highly speculative ventures like placing data centers in orbit or colonizing space.
• EchoStar (SATS) and AST SpaceMobile (ASTS) as well as shares of other rocket, satellite and space-related companies declined as investors raced to invest in SpaceX. Procure Space ETF, a fund with a market value of about $1 billion that had gained about 38% so far this year, slid as much as 7.9%.