Set stop loss for 26 at least, maybe 27. If it breaks below 27, then it could drop much lower, and that way you made a profit if DUST would suddenly crash. 25 sale would set you up for a loss on a continuing down pattern where you would have easily been able to sell over 26.
But based on short term events & technicals for gold, DUST should get back to 35+ eventually. Probably 40's. But if it would break below 27, then I'd worry, so it is why i'd adjust your stop-loss higher than 25, yet enabling you to reap a profit in event a crash happens.
I was just pennies away from my 35 DUST target. Anyhow, I chose to recently sold out in 33's-34's & said so this week earlier. DUST could still bounce back toward 40, but at this point I decided to sell given this wee's trading action. I took a sold 25%+ profit in only about 3 trading days, so happy with that.