Sure the investments may decrease in value, but provided they do not withdraw, generally speaking, they will return to profitability in relatively short order. (money.stackexchange.com)
If markets move against the trade and then return to profitability, the margin is returned. (nsfx.com)
U.S. shale has proven itself to be resilient to weaker oil prices, with several companies returning to profitability in the second half of 2016. (hacked.com)