@Solitair You're not the only one. With a market capitalization of around USD 50 billion, I also thought that 20 x turnover was too expensive, but who thinks that they will just keep on rising?
I had D-Wave Quantum 2024 running for an intraday somewhere around €5 for a total value of €20,000. That would have been a nice peak when the stock was over €30. But of course nothing against your Palantir story. I had Deutsche Telekom in my portfolio quite recently. I got out and then it went up another 30%. That annoyed me too. But someone also told me I always sell everything immediately with 3% plus. I have to work on that.