Rocket Lab Stock Slides 24% Over 6 Straight Down Days
A persistent sell-off in the space-launch provider prompts a closer look at the numbers behind the negative momentum.
Rocket Lab (RKLB) stock has moved lower for 6 consecutive trading days, resulting in a cumulative loss of 23.6%. That streak has erased about $14 Bil from the company’s market value, which now stands at about $46 Bil.
Rocket Lab USA, Inc. provides launch services and space systems solutions for the space and defense industries. The company also designs, manufactures, and sells Electron small orbital launch vehicles and Photon satellite platforms.
RKLB Versus The S&P 500, Streak And Beyond
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Here is how RKLB stock stacks up against the S&P 500 over the streak and the periods around it:
| Return Period | RKLB | S&P 500 |
|---|---|---|
| 1D | -5.3% | -0.8% |
| 6D (Current Streak) | -23.6% | 0.4% |
| 1M (21D) | -27.0% | 3.4% |
| 3M (63D) | 12.8% | 10.2% |
| YTD 2026 | 10.0% | 9.8% |
| 2025 | 173.9% | 16.4% |
| 2024 | 360.6% | 23.3% |
| 2023 | 46.7% | 24.2% |
Is This Selling Justified By The Numbers?
The market appears to be weighing a conflict in the company’s financial profile. While revenue over the last twelve months grew 45.8%, far outpacing the S&P 500 median of 7.5%, profitability metrics show strain. The company’s operating margin is -33.2%, against a median of 18.4% for the index. Its price-to-earnings multiple is -254.4.
This move is specific to the stock, not a reflection of the broader market, as the S&P 500 returned +0.4% over the same 6 trading days. While losing streaks are not uncommon, with 24 S&P 500 stocks currently on losing streaks of 3 days or more, the magnitude of this decline is notable.
What Does A Streak Actually Tell You?
A streak is information, not an instruction. It signals that a stock has the market’s attention and that momentum has taken hold, but it doesn’t predict the next move. The disciplined response is to use the streak as a prompt to re-evaluate the business relative to its price.
The data here provides a starting point for that work. It shows a company with high growth but significant losses, a profile that the market is currently scrutinizing.
A slide like this always poses the same follow-up: which marked-down stocks are actually worth buying? Our Buy the Dip screen runs that test every day, flagging beaten-down names whose fundamentals still hold up.
And for anyone who would rather own the whole group than one company’s story, an indxx aerospace & defense ETF like MISL owns the whole group. It is still a concentrated bet on that one theme, though, which is exactly the gap the portfolio below closes.
Falling Prices Test Conviction. Rules Do Not Flinch
A losing streak forces a choice on every holder: sell into weakness, average down, or freeze. All three are emotional answers to what should be an analytical question, and emotions priced at market open are expensive.
The Trefis High Quality (HQ) Portfolio takes the emotion out: about 30 quality businesses screened for the fundamentals that survive bad stretches, held and rebalanced by rules. It has a track record of outpacing a benchmark that combines all major indices – the S&P 500, S&P Mid-cap, and Russell 2000. Let the rules do the flinching for you.