NEW YORK, July 14, 2026 – A steep decline in SpaceX (NASDAQ:SPCX) shares erased approximately $39.5 billion in market capitalization late Tuesday, overshadowing notable gains from several smaller space-sector peers. The drop highlights the outsized influence of the industry's largest player on overall sector performance.
SpaceX shares fell 2.2% to $136.08, wiping out nearly $40 billion in equity value based on the company's base offering share count. In contrast, MDA Space Ltd. (NYSE:MDA), Rocket Lab USA Inc. (NASDAQ:RKLB), and AST SpaceMobile Inc. (NASDAQ:ASTS) collectively added roughly $2.0 billion in market value, with Rocket Lab contributing the largest portion at 62% of the gains.
Despite a 4.1% average gain among the three smaller stocks, their combined increase was just 5% of SpaceX's single-day loss. The divergence underscores how a small percentage move in a mega-cap company can dwarf significant percentage gains in smaller peers.
The broader market showed strength, with the Nasdaq Composite rising 0.9% as June consumer inflation cooled to 3.5% from May's 4.2%. Traders now see only a 10% chance of a Federal Reserve rate hike in July, down sharply from 35% previously. Typically, such data benefits long-duration growth stocks, but SpaceX did not follow that trend.
SpaceX now trades just 0.8% above its initial public offering price of $135 and sits 39.7% below its June 16 high of $225.64. Evercore ISI analyst Kutgun Maral initiated coverage with an Outperform rating and a $230 price target, calling SpaceX "an extraordinary company on a real path to reshaping the future of humanity," but noted that "a great deal left to prove out."
MDA Space surged 7.8% to $33.89 after completing a 23 million share sale at $35.60, raising about $819 million. The company plans to use the proceeds to fund roughly 70% of its planned acquisition of France's CLS for approximately €567 million in cash. MDA expects CLS to contribute about €286 million in revenue for 2026 and double its recurring revenue. CEO Mike Greenley described the combined offering as the "broadest and richest offering" of multi-sensor Earth and space observation data.
Rocket Lab made up about 62% of the group's estimated $2.0 billion gain, with MDA at 20% and AST SpaceMobile at 18%. The rally was narrow, not a broad push for the sector. Equity values still range from about $5.5 billion for MDA to nearly $1.8 trillion for SpaceX, so even a small shift at the top can wipe out big moves lower down.
Looking ahead, SpaceX aims to launch Starship Flight 13 as soon as Thursday. A smooth test could refocus attention on operational milestones, while a failure might widen the execution discount. MDA's CLS deal still requires regulatory approval, and underwriters have the option to increase the share sale by up to 15%. Barron's noted that SpaceX could see additional supply hit the market after its first earnings report, unlocking shares equal to about 20% of outstanding stock.
For investors, Tuesday's session was less about how space stocks moved and more about where new capital flowed. MDA's acquisition financing and roughly $400 million in equity gains from higher prices contrasted sharply with SpaceX's nearly $40 billion valuation reset. The sector traded on separate balance sheets, not one unified narrative.
