Of the one bitcoin? Im sorry, i don't understand the question.. I dont have set % for buying in.. Its not mathematical for me.. I look at the time and sales and level2 to see whats normal, and then I start putting in orders all the way down the bid.. a little here and there, and then I watch how the coin drops.. if it drops fast, then pauses, I might buy a large chunk all at once.. if it takes its time and doesnt show evidence of real panic selling, then I will keep my orders small...