NEW YORK, December 29, 2025, 17:43 ET — After-hours
- Rocket Lab closed down 0.8% and was up about 0.5% in after-hours trading.
- The stock has been volatile after a December rally tied to a major U.S. Space Force satellite award disclosed in an SEC filing.
- Investors are watching execution on long-dated defense programs and broader risk appetite into a holiday-thinned final week of the year.
Rocket Lab Corp shares fell 0.75% to $70.12 at the regular-session close on Monday, then rose 0.46% to $70.44 in after-hours trading, according to Google Finance data.
The moves matter because Rocket Lab’s sharp run has made it a crowded trade into year-end, and after-hours trading can amplify swings on lighter liquidity. Investors are also trying to pin down how quickly large defense awards translate into revenue and cash flow for a company still building scale.
Rocket Lab traded against a softer U.S. tape. Wall Street’s main indexes ended lower on Monday as heavyweight technology shares retreated, Reuters reported, leaving high-beta names sensitive to any shift in risk sentiment.
In regular trading, Rocket Lab ranged from $69.32 to $72.74 and remains not far from its 52-week high, Google Finance data showed. The company’s market value stood at about $37.5 billion.
The stock’s latest catalyst sits earlier in December, when the U.S. Space Development Agency said it signed fixed-price contracts — deals where the contractor typically bears the risk of cost overruns — with Rocket Lab and three legacy defense suppliers to build 72 satellites worth about $3.5 billion in total.
Rocket Lab later detailed its portion of that work in an SEC filing, saying the SDA contract had a total value of $816 million, including a $806 million base plus about $10 million in options. The filing said work would begin immediately and final delivery was expected in 2029.
In the company’s press release filed with the SEC, Rocket Lab founder and CEO Peter Beck said, “Demand for resilient, scalable, and affordable space systems continues to grow.” SEC
That release said the award covers 18 satellites for SDA’s Tranche 3 tracking layer and includes missile warning and tracking sensors. It also said Rocket Lab could pursue additional subsystem work as a merchant supplier to other prime contractors, lifting the total “capture value” to about $1 billion. SEC
The Tranche 3 program places Rocket Lab in direct competition for national security work against larger primes that also signed SDA deals, including Lockheed Martin, L3Harris Technologies and Northrop Grumman, Reuters reported.
Traders have also been watching whether the stock can hold recent support levels after a steep climb. Technical traders — investors who use chart levels to gauge where buying or selling may emerge — often focus on “support” and “resistance” areas around recent turning points. Barchart.com
Macro headlines are likely to matter as much as company news in the near term. Minutes from the Federal Reserve’s prior meeting and weekly jobless-claims data are due this week, Reuters reported, and both can shift expectations for rate cuts that influence high-growth valuations.
For Rocket Lab specifically, investors say the next test is execution: turning multi-year defense awards into manufacturing cadence, margins and predictable cash use, while the stock remains prone to sharp moves during thin year-end trading.
