Quote from OldTrader:
Really, you need to provide some detail to make this a credible statement.
A stop order (not a stop limit order) will always "work"....you just may not like the execution.
When I say "always", I'm not counting a situation where the market places an artificial set of circumstances into the rules. For instance, if you're trading a market which has limit moves...like most of the commodities for instance....then it's possible you would not be executed prior to the market reaching the limit move. Ouch! So if you're trading markets that have limit moves, you may want to consider that, consider what you can do if a limit move occurs. And by the way, there are limits to the stock market...frankly I've forgotten now what they are.
Another possible exception has to do with your trade software. If it is set up incorrectly, or it fails, or it malfunctions in some way, then you may have a problem as well. Throw in there internet problems, etc etc. All things to consider when contemplating what your risks are.
But personally, I think buying out of the money puts is a very expensive solution to the problem.
OldTrader