SpaceX (SPCX) vs Rocket Lab (RKLB): Which is a Better Stock to Buy?

Space Exploration Technologies Corp. (NASDAQ:SPCX) closed at $158.96 on October 2, and Rocket Lab Corporation (NASDAQ:RKLB) at $73.92. One of these companies is roughly forty times the size of the other. Neither makes a profit. The interesting part is that the market charges a similar price for each dollar of their sales, which is an odd way to value two businesses this different. READ ALSO: RTX Corp. (RTX) Gets a $6.3 Billion Munitions Tailwind—Can It Deliver?SpaceX (SPCX) vs Rocket Lab (RKLB): Which is a Better Stock to Buy? Scale Is the Entire Difference: Start with how far apart these two are. SpaceX generated $23.04 billion of revenue over the past twelve months. Rocket Lab generated $769.15 million, which is about one thirtieth as much.