One of the reference factors for the top of the market:
It must be accompanied by very positive news that can provide ample liquidity, such as the approval of ETFs earlier this year; this time it could be something like Trump making a comeback? Or something else, anyway, it won't just reach the top without any significant events.
Under this major premise, the probability of making money by buying during a dip is quite high (dipping, just like the day before yesterday), and if it fails to break the previous low on the second attempt, it becomes an excellent position to enter, with a very close stop loss and great cost-effectiveness.