What? The volume is no more than any other random open in TSLA, the opening hour is also posting a 3.5% drop (5% if you count the gap), not 6%. I'd love to be wrong but I have a hard time believing this means anything at all, it just looks like market noise to me. Of course the stock is overweight, it has been since before the pandemic.
The key word here is "if" there's more dumping, then it gets bad, of course that's true, but I don't see any reliable indicator that there will be more dumping, from a single H1 candlestick that looks the same as all the other opening candlesticks in the stock. I feel like you're projecting ghosts onto market noise.