Space investing is entering a new phase. SpaceX‘s (NASDAQ:SPCX) blockbuster IPO quickly became the largest and one of the most anticipated public listings in market history, prompting the Nasdaq exchange to revise its inclusion rules to speed the company’s path into its major indexes.
Those rule changes will likely accomplish their goal. SpaceX appears on track to join the Nasdaq-100 in early July, bringing automatic buying from index funds and ETFs that track the benchmark. Yet despite all the attention surrounding SpaceX, it won’t be the first space stock in the Nasdaq-100. In fact, another will enter the index beginning Monday. And for investors looking to buy a space stock today, it looks like the better choice.
Rocket Lab Gets There First
Nasdaq’s decision to fast-track newly listed mega-cap companies was widely viewed as a response to the unprecedented size of the SpaceX IPO. The move ensures it won’t have to wait through the traditional seasoning period of three months or one full quarter of trading before becoming eligible for inclusion.
But while SpaceX may be the reason the rules changed, Rocket Lab (NASDAQ:RKLB) is the company benefiting first. Nasdaq selected the space stock on June 11 to join the Nasdaq-100, along with Nebius Group (NASDAQ:NBIS), CoreWeave (NASDAQ:CRWV), Teradyne (NASDAQ:TER), and Astera Labs (NASDAQ:ALAB).
Inclusion matters because index-tracking funds are required to buy shares. According to Nasdaq data, hundreds of billions of dollars track the benchmark directly or indirectly. That creates immediate demand for stocks entering the index.
For Rocket Lab, that buying pressure could provide a short-term tailwind. Yet the real investment case goes much deeper than index membership.
The Numbers Favor Rocket Lab
Rocket Lab’s biggest challenge entering 2026 was valuation. Shares climbed rapidly and reached a 52-week high of $151 in late May before retreating nearly 30%. That pullback has changed the risk-reward equation.
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Even after the decline, Rocket Lab stock remains up roughly 53% year-to-date. More importantly, the company continues expanding across multiple growth markets instead of relying solely on launch services.
Here’s what the numbers tell us:
|
Metric |
Rocket Lab |
SpaceX |
|
Public market history |
Established public company |
Newly public |
|
YTD performance |
+53% |
+37% from IPO |
|
Distance from recent high |
-29% |
-18% |
|
Growth drivers |
Launch, satellites, space systems, defense |
Primarily launch and Starlink |
|
Nasdaq-100 status |
To be added June 22 |
Expected early July |