Cramer favours Voyager over Rocket Lab as space sector valuations diverge
Voyager Technologies reports 51% sequential revenue growth and raises full-year guidance, contrasting with Rocket Lab’s high valuation and declining hedge fund interest.

On 5 August, CNBC’s Mad Money host Jim Cramer advised investors to steer clear of Rocket Lab Corporation, characterising the stock as “pure spec,” and instead pointed to Voyager Technologies as a stronger opportunity within the commercial space and defence sector. The commentary followed an episode on 4 August where Cramer interviewed Voyager’s management and reviewed the company’s second-quarter earnings report.
Voyager reported a narrower-than-expected loss and delivered a 51% sequential increase in revenue, alongside a 22% rise in its backlog. Management indicated that demand is outpacing the company’s ability to convert orders into revenue, prompting a substantial raise in its full-year revenue forecast. This guidance revision was partly attributed to the recent acquisition of Astrobotic, a move that has bolstered Voyager’s position in space robotics.
The market reacted swiftly to the results, with Voyager’s stock jumping 14% the day before the earnings release and rallying a further 19.6% on the day of the report. Despite these gains, the share price remains approximately 55% below its post-IPO highs from the previous summer. Cramer highlighted the company’s expanding government defence contracts as a core strength, noting that Voyager is effectively converting sector demand into top-line expansion.
In contrast, Rocket Lab continues to fund development for its medium-lift Neutron rocket program while trading at a significantly higher valuation. The company currently holds a price-to-sales ratio of 53.10, compared to Voyager’s multiple of 8.67. Rocket Lab also carries a short interest of 7.97% of its public float, whereas Voyager faces higher short-seller scrutiny at 21.65% of float.
Data from Insider Monkey reveals shifting institutional sentiment between the two firms as 2026 progresses. Elite hedge fund holders in Rocket Lab declined from 45 in the fourth quarter of 2025 to 43 in the first quarter of 2026. Conversely, hedge fund ownership in Voyager Technologies expanded from 35 holders in Q4 2025 to 37 in Q1 2026, suggesting growing institutional confidence in Voyager’s operational momentum over Rocket Lab’s speculative launch plays.


