# Lot size buying power **URL:** \ **Category:** C2\ **Created:** [November 28, 2007, 10:51am UTC](https://forums.collective2.com/t/lot-size-buying-power/6510 "2007-11-28T10:51:12Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![SusanShafer](https://avatars.discourse-cdn.com/v4/letter/s/a698b9/32.png) [@SusanShafer](https://forums.collective2.com/u/SusanShafer)\ **Post date:** [November 28, 2007, 10:51am UTC](https://forums.collective2.com/t/lot-size-buying-power/6510/1 "2007-11-28T10:51:12Z")
If I have a 10K account with your 33 times for margin. Does that mean that I can hold 330,000(33K). Then at that price, I’d only be able to hold 33 mini lots? Is that correct? It doesn’t matter what the price is of the underlying currency. ---
**Author:** ![MatthewKlein](https://yyz2.discourse-cdn.com/flex028/user_avatar/forums.collective2.com/matthewklein/32/21382_2.png) [@MatthewKlein](https://forums.collective2.com/u/MatthewKlein)\ **Post date:** [November 28, 2007, 11:05am UTC](https://forums.collective2.com/t/lot-size-buying-power/6510/2 "2007-11-28T11:05:07Z")
That is not _exactly_ correct, but it is close. If you have 10K in your hypothetical C2 account, then that means you have $10,000 U.S. dollars in your account. You are allowed to hold positions valued at $10,000 x 33 … or $330,000 USD. Each currency position you hold is converted into _dollars_ before margin is calculated. Some pairs are already dollar-denominated. Those that are not are converted into dollar values for the sake of margin calculations. So it’s not purely a quantity-based calculation. It is a dollar-value calculation. One final note: your available margin increases and decreases based on changes in your account equity. If you hold an open position that has lost $1,000 dollars in value, then you no longer have $10,000 in your account; you have $9,000. Your 33:1 leverage thus only gives you ability to control $297,000 of currency.