If MU hits 36.65 and does not gap above it, then short it.
If /RTY hits 1527 and does not gap above it, short it.
If UAL hits 75.54 and does not gap below it, long it.
If IBM gaps under 131.77, wait till it hits that number as long as it does not gap back above, and short it.

All these examples should work as long as you trade the first touch. The IBM one should decline to 126.50 after the gap down as a swing trade but I only specialize intraday so who knows for sure. I also don't know how far price can move in those trades, as local supply and demand may change current exit targets. Also, if price gets really close then reverses, then safer not to trade it...these are just some examples for some trades.