
Quote from shorty735261:
I was surprised to see that a fund writing out-of-the-money puts on the S&P 500 actually existed.
It was proposed as a thought experiment way back in 2001, as an example of a fund that is guaranteed to blow up, but can make a lot of money for the principals in the mean time. See Krugman and follow his links for more details.
Quote from chrismontez:
There is another strategy based on writing naked puts that I believe can work consistently, whereby you short puts on the strongest stocks in an index and then buy puts on the index . The number of puts you buy is calculated based what % of the index the stocks you shorted make up the index. The math on the strategy looked convincing, but it required a substantial account for the margin.