Follow the runway. Rocket Lab reported cash and cash equivalents of $1,205.5 million as of March 31, 2026, according to its Q1 2026 Form 10-Q. That is up from $828.7 million at the end of 2025 and just $271.0 million at the end of 2024 — the balance roughly quadrupled in five quarters, the kind of move that only happens when a company raises capital ahead of a heavy spending phase.

For a hardware company building a new vehicle, cash is not a comfort metric — it is the development runway. Rocket Lab is funding the medium-lift Neutron rocket, which is not yet generating launch revenue, alongside continued Space Systems expansion. A $1.2 billion balance buys time and credibility with customers who need to believe the rocket will fly; it does not, by itself, make the program cash-flow positive.

“We believe that our existing cash and cash equivalents and marketable securities and payments from customers will be sufficient to meet our working capital and capital expenditure needs for at least the next twelve months, although we may choose to take advantage of opportunistic capital raising or refinancing transactions at any time primarily for the purposes noted above.”— SEC filing (10-Q) source

The candid framing matters: a large cash balance is the price of optionality, and for pre-revenue programs it is consumed by the build, not preserved by it. The relevant questions for next quarter are the burn rate and whether the company raises again — every raise that extends runway also dilutes existing holders. Dilution is frequently the price of survival for capital-intensive space names, and Rocket Lab's balance-sheet trajectory is a textbook case of trading equity for time.

The disciplined read: $1.2 billion is a genuine cushion that de-risks the Neutron timeline, but it is runway, not earnings. The filing is the receipt; track the cash line and the share count together each quarter. Records on sec.gov, indexed by SEC filings.