Caught some interesting premarket action today - MARA and Block both jumped double digits at the open, which is pretty solid momentum to start the week. Meanwhile CoreWeave took a hit and sank on the other side. Always interesting to see how these play out once regular trading kicks in.

Premarket moves like these can set the tone, though you never really know if they'll hold. The gap up on those two is worth watching to see if it sticks or if we get some profit-taking. CoreWeave's drop is the flip side - curious what triggered that one. These kinds of premarket swings are usually where you spot the real conviction trades versus the noise.