Rocket Lab (NASDAQ:RKLB) Stock Fell 45% From Its High — Here's What the DCF Model Actually Says

Want access to all our investing content? Join at 7investing.com/subscribe Join the conversation on the 7investing discord: https://discord.com/invite/PT9ZQqdXXSRocket Lab (NASDAQ:RKLB) peaked near $150 a share earlier this year, powered by SpaceX IPO excitement and space sector momentum. Now it's trading at $83. Simon Erickson and Heather Horton revisit the full discounted cash flow model Simon built three weeks ago and walk through the three things that will actually determine where Rocket Lab goes from here.First, and most importantly: Space Systems, not launch, is the real business. The launch vehicle gets all the headlines, but manufacturing satellites and signing long-term contracts with the Space Defense Agency, NASA, and the Department of Defense is what's building Rocket Lab's moat. Total backlog stood at $2.2 billion in Q1 2026, and Simon has already modeled that nearly doubling to $4.3 billion by year-end, an aggressive assumption that he thinks the business can support. By the end of the forecast window (fiscal 2041), space systems could represent 85–90% of total revenue. The launch is just the delivery mechanism.Second: operating leverage is real and accelerating. Rocket Lab is redeploying headcount from R&D into production — meaning their employee base is essentially converting from overhead into cost-of-goods-sold as Neutron approaches the pad. SGNA and R&D headcount both declined even as the business grew in fiscal 2025. This is CFO Adam Spice making a deliberate call that Neutron is no longer an R&D project, it's a product. Gross margin and scalability metrics look unusual right now as a result, but that's a transition signal, not a warning sign.Third: Rocket Lab's cost of capital is about to get a lot cheaper. The company is almost entirely equity-funded right now, which carries a ~10.3% discount rate in Simon's model. But with real assets in the ground, a credible operating history, and convertible debt already in the toolkit, Simon expects Rocket Lab to access debt markets at 5-6% in 2026 and 2027. If the WACC drops from 10.3% to even 8%, it directly and materially boosts the DCF fair value. The $150 price wasn't justified. The $83 price is much more interesting but watch those three variables.Stocks & Companies Mentioned:Rocket Lab (NASDAQ:RKLB)SpaceX (NASDAQ — newly IPO'd June 2026)Arqit Quantum (NASDAQ:ARQQ) — teased for upcoming Monday episodeQuantinuum — teased for upcoming Monday episode#RocketLab #RKLB #SpaceStocks #StockAnalysis #DCFValuation #GrowthStocks #SpaceInvesting #NeutronRocket #Starlink #SpaceX #StocksToWatch #InvestingIn2026 #ValueInvesting #TechStocks #7investing #Simonerickson