U.S. stock futures were mostly flat Tuesday morning, with the Nasdaq 100 futures slipping around 0.01%. But beneath the calm surface, plenty of individual stocks were making moves, particularly those that had enjoyed strong Monday sessions.

Sidus Space Crashes on Dilution News

Sidus Space, Inc. (SIDU) took the biggest hit in pre-market trading, tumbling 39.2% to $1.39 after announcing the pricing of a public offering. The company revealed it would sell 19,230,800 shares of its Class A common stock at $1.30 per share in a best-efforts offering. That kind of dilution tends to send existing shareholders running for the exits, and this morning was no exception.

Space Stocks Cool Off After Monday Rally

Several aerospace and space-focused companies retreated after impressive Monday gains. Starfighters Space Inc (FJET) dropped 23.2% to $24.19, giving back some of its spectacular post-IPO volatility that saw shares surge more than 370% on Monday. That's the thing about parabolic moves: gravity eventually kicks in.

Rocket Lab Corp (RKLB) fell 5.3% to $73.46 after jumping 10% Monday. The company had announced it successfully launched its 21st Electron rocket of the year, deploying the latest satellite for multi-launch customer Institute for Q-shu Pioneers of Space. Apparently investors decided that good news was already priced in.

Intuitive Machines Inc (LUNR) declined 5.2% to $15.82 after gaining 12% the previous session. Despite the pullback, B. Riley Securities analyst Mike Crawford maintained his Buy rating and raised the price target from $14 to $20, suggesting he sees more upside ahead.

AST SpaceMobile Inc (ASTS) dipped 3.1% to $83.82 following Monday's 14% surge. The company had outlined new details about its next-generation BlueBird satellites, which are designed to deliver 24/7 high-speed cellular broadband directly to everyday smartphones worldwide. Even exciting technology updates can't prevent some profit-taking.

Firefly Aerospace Inc (FLY) declined 4.4% to $27.33 after jumping 16% Monday on news that the company would join the Russell 2000 and Russell 3000 indexes. Index inclusion is typically bullish for stocks, but the immediate reaction had already played out.

Other Notable Decliners

ECD Automotive Design, Inc. (ECDA) fell 15.4% to $0.1650 after announcing a 1-for-5 reverse stock split. Reverse splits are often viewed negatively by traders, as they're typically implemented by companies trying to maintain listing requirements.

Several other stocks declined without specific catalysts. CapsoVision Inc (CV) dipped 5.6% to $12.35, while DBV Technologies SA – ADR (DBVT) fell 5.2% to $19.22. Heritage Commerce Corp (HTBK) dropped 5% to $11.91, Jyong Biotech Ltd (MENS) fell 4.2% to $4.58, and Argo Blockchain PLC – ADR (ARBK) declined 3.1% to $4.46 in early trading.

The broader theme? After Monday's strong session for many growth and space-focused names, Tuesday brought some natural consolidation as traders locked in profits.