On Qualified Trader accounts the below max lot exposure applies to each account size.
Max lot exposure is the total combined allowed lots/position size allowed at any one time on the account.
For example, 100k max 40lots exposure, this means you can open 1x40 lot trade or 2x20 lots trades but you could not open 2x25 lot trades as the total exposure would equally 50lots and breach the max limit of 40.
$10k = Max 5 lots
$25k = Max 10 lots
$50k = Max 20 lots
$100k = Max 40 lots
$200k = Max 80 lots
On Qualified Trader accounts, you can request for the limit to be increased, however, we require sufficient trading data on your Qualified trader account in order to grant an increase.