Rocket Lab (RKLB) has gained 9.5% over the last five trading days, while the S&P 500 added 0.6%. A week like that pulls money in. The stock is still about 55% below its 52-week high. The run is not the question. What matters for your money is what this stock does to your portfolio when the market moves, because it travels about four times as far as the index in both directions.
On days the S&P 500 rose over the past year, Rocket Lab captured about 381% of the gain. On days the index fell, it absorbed about 403% of the loss. The down days take slightly more than the up days give.
That is leverage on the market rather than a cushion. Over the past five years Rocket Lab ran 79.2% annualized volatility against 17.2% for the S&P 500, and its daily moves tracked the index at a correlation of 0.46 over those five years.
A moderate correlation and a swing that size sit together. Correlation asks whether the stock and the index move the same way, not how far. A good part of what Rocket Lab does is its own.
Look at what you own. Rocket Lab booked a record $234 million of revenue in Q2 2026, up 62% from the same quarter a year earlier, and it has just flown its 16th Electron mission of 2026.
#days
On days the S&P 500 rose over the past year, Rocket Lab captured about 381% of the gain. On days the index fell, it absorbed about 403% of the loss. The down days take slightly more than the up days give.
That is leverage on the market rather than a cushion. Over the past five years Rocket Lab ran 79.2% annualized volatility against 17.2% for the S&P 500, and its daily moves tracked the index at a correlation of 0.46 over those five years.
A moderate correlation and a swing that size sit together. Correlation asks whether the stock and the index move the same way, not how far. A good part of what Rocket Lab does is its own.
Look at what you own. Rocket Lab booked a record $234 million of revenue in Q2 2026, up 62% from the same quarter a year earlier, and it has just flown its 16th Electron mission of 2026.
#days
1 day ago
