Calculators
Check the number instead of remembering the rule
Four calculators running the same arithmetic the engine runs: the fee's effect on your break-even, the per-market exposure cap, the trailing floor, and what a withdrawal puts in your pocket.
What win rate a price needs once the fee is paid.
Implied chance
50%
Fee
$1.75
Break-even chance
51.75%
Edge the fee eats
1.75 pts
Every fill is charged at the taker rate, so this is what the trade costs on entry. A position you intend to close before it resolves pays it twice, plus the spread twice.
Plan rules are read from the live catalog when this page loads, and the fee comes from the same function that charges your account. Accounts are simulated; these figures describe what the engine enforces, not a projection of what you will make.
The reasoning behind each of these
Every calculator here has a lesson explaining what it is doing and why the rule is shaped that way.