Rocket Lab (RKLB) shares took a hit in extended trading Wednesday after the company announced plans to raise up to $3 billion by selling common stock. The stock was down 6.7% in after-hours, trading at $125.10 at the time of publication.

The move comes via an equity distribution agreement filed late Wednesday, allowing Rocket Lab to offer and sell shares from time to time. The company said it intends to use the proceeds to fund future growth, including potential acquisitions, as well as for general corporate and working capital purposes.

This isn't a desperate cash grab. Rocket Lab already had more than $2 billion in total liquidity as of March 31, including about $1.21 billion in cash and cash equivalents. But the company is clearly positioning for aggressive expansion, and the market is pricing in some dilution.

The timing is interesting. Rocket Lab shares have been on a tear, up roughly 92% year-to-date. The stock's recent run makes this a relatively favorable moment to raise capital, even if the immediate reaction is negative. Investors are selling first and asking questions later.

For now, the market is voting with its feet — or at least its after-hours trading algorithms. But the long-term story remains intact: Rocket Lab is building out its space capabilities, and this cash raise gives it more fuel for the journey.