Futures limit day: the loss at the limit and the loss if you cannot get out
On a limit day the price stops at the limit, but you may not be able to trade there. Enter your numbers and see the mark and the exit.
How it works: the limit is how far the price may move from the prior settlement in one day. A long position marks at the prior settlement minus the limit. A short position marks at the prior settlement plus the limit. The mark is what your account shows. It is not the price you get. At the limit there may be no one to trade with, so you may be unable to exit until the price moves. Your final exit price can be further away. The gap is a loss the mark did not show.
The mark is not the exit
Your account shows the loss at the limit. If you cannot sell, you hold through the next move. The price you get later can be worse. See limit up limit down and a margin call sold at the low.
Count the loss you cannot leave
A stop order does not guarantee an exit on a limit day. Size the trade so the loss at the limit is a number you can hold. See futures contract and the tick in dollars calculator.
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