Somebody sells at 4k instead of 40k. Who gets it?
AFAIK, if it is the same as stocks, then it is &quot;The person who entered it first&quot;, meaning:
If somebody put in the limit order to Buy At $33,000, before you, then your $4000 will be matched to his limit order, but because he entered it first, then the transaction between you and him will be $33,000.  That's the rule.
There are tons of buy orders to buy at $33,000 or $32,999, so the $4000 will be matched by those numbers first. (and it will be sold at $33,000 or whatever the highest bidder is).