The RKLB reaction is a good example of why headline growth alone isn't enough to justify a momentum valuation.

Q2 revenue hit a record $234.1M (+62% YoY), backlog expanded to $2.36B, and gross margin came in at 41.5%. On the surface, that's a strong fundamental print.

But the forward numbers tell a more nuanced story: Q3 revenue guidance of $250–265M implies continued ~7–13% QoQ growth, while gross-margin guidance of 29–31% is materially below both Q2's 41.5% and the ~37.6% consensus. 

With RKLB having rallied ~27.5% in the week into earnings, the issue wasn't whether the quarter was good — it was whether the incremental fundamentals were sufficient to support the expectations embedded in the multiple. 

That's the key distinction in high-beta thematic trades: growth drives the narrative; forward estimates and valuation determine whether the narrative still has upside.

The space trade may still have a strong secular thesis. But at elevated multiples, execution has to beat expectations — not merely meet them.