$Rocket Lab(RKLB.US)has been under pressure this week. Here are the key drivers based on recent market action and reporting.

SpaceX went public around June 12, 2026, in one of the largest IPOs ever raising ~$75 billion at a massive valuation. This created intense focus and capital inflows into SpaceX itself, leading to profit-taking and rotation out of other public space stocks like $Rocket Lab(RKLB.US), ASTS, LUNR, and SPCE. Many space names dropped 10–40% in the days following as investors reassessed valuations and shifted attention. $Rocket Lab(RKLB.US)was caught in this sell the hype dynamic: pre-IPO excitement had lifted the whole sector, but post-IPO reality triggered selling in peers. Analysts and traders noted SpaceX sucking the oxygen out of the broader space trade.

Besides, $Rocket Lab(RKLB.US)was added to the Nasdaq-100 Index effective on June 22. The announcement triggered a strong pre-market rally (up 7–8%+ at times), but this reversed into profit-taking once regular trading began. One session saw a sharp drop (around 10%+ intraday in reports) as traders who bought the rumor sold the news. Passive index fund buying is expected starting next week, which could provide support, but the immediate reaction was negative.

@Bridge Buzz SG