My friend Tina got to talk to Matthew McConaughey on the phone today. She trades oil derivatives, mostly options
Multi-leg options trades have funny names, like "skinny fly" and "fence", which is what they're talking about
A skinny fly (+1 / -1 / +1) is a variation of the butterfly (+1 / -2 / +1). The fence is -1 / -1 / +1 options
+ vs - just indicate which options you're packaging together, so you could buy +1 sell -2 and buy +1 for the butterfly. The order is determined by moneyness