never use stop loss in option. even in stocks, I do not trade stocks.
only use stop loss to trade futures.
in stocks, if you are investors, stop loss does not make any sense, even with intra-day, there are haltings/pendings, so stop loss does not make any sense. bad things happen then happen. stop loss suppose the market runs in trend or some kind of range-band ways, but in reality, 80%+ stocks do not run in that way, gap down/gap up, trend a while, then suddenly disappear, always do those naughty things.
the sure way to limit loss is option. for example, last week, if I shorted INHX at 10, then overthe weekend, the market gapped to 24+ (a buyout), you mean stop loss, a laugh, I will lose 14 bucks a piece, even my stop loss is at 11. but if I bought put strike 10 with 0.8 bucks, I just lost the 0.8bucks, that is all. I can totally control my loss to what I want to.
since option is stop loss built in. it is not necessary to do so. if I want to long something, and limit my loss at 1k, then I bought 1k call option, sleep tight, if my 1k doubled, get out half, then let another run til almost expiration or my trading idea invalid(free ride, risk free), so I can make the maximum profit. if my 1k down to almost zero, do not bother to do anything until expiration, if lucky, cooked duck fly, then happy about that, if not, feel happy too since I follow my trading plan, why bother being sad.
option is just a tiny partion of the underlying, plus volume is noramlly low, it is pretty valitlie with large bid/ask spread, it is fruitless to use stop loss.
I normally use stop loss to trade futures in those technically tradable markets, that make sense. in future market, it is almost 24hr open, beyond circut breaker, 15minutes and half minutes trading haldtings, volume are awesome good, news release will not stop the market. all time are good for stop loss. that is why most people trade futures are day traders.they use stop loss to control their loss.