I have some money in Rocket Lab, and Planet Labs (I like space stocks). Yesterday, comparing both, I saw that they have very similar curves. I checked a space ETF (Vaneck), and it was markedly different.

What surprises me is that while both are space stocks, their core business is markedly different.

Am I seeing major manipulation here?

I have the nagging feeling that a major player is doing manipulation here. Elon, screwing competitors, maybe?