Day trading crypto without margin

assalamou alaikom,
i know there are issues when daytrading with normal stocks, because it takes 3 days for the cash to settle, and if you make a new trade in those 3 days you are lending money with riba.
is this the same case with crypto? if i make a spot trade and sell, and 10 seconds later i enter a trade with the crypto i sold, am i ‘‘lending’’ crypto when i bought and entered in the second trade?
may allah bless you all