517 million $SPCX shares traded today. SpaceX sold 555 million in the IPO.

Nearly the entire float changed hands in one session.

This is what happens when retail gets access to a name they've been locked out of for years. Pent-up demand meets FOMO meets momentum chasers.

Not saying it's overvalued or a bubble — I have no idea what SpaceX is worth. But this kind of volume on day one? It's emotion, not analysis.

If you bought today, just know you're in a crowd. Crowds can be right. They can also be very, very wrong.

Watch what happens when the excitement fades and people remember stocks go down too.