And for sure, for a short position you would have to pay also the price of the instrument, which includes all the parameters/leverage? Shorts are in a way more efficient that the financing costs are working a liiiiitttle bit towards you, because of the interbanking rate that the issuer is applying, but this is negligibe for singe positions below 1m - and in reverse, with 1m per position, you wont use turbos, usually, its not the optimal instrument in those cases, in most cases
But nontheless, you as instrument user pay something, for sure.