Most textbook examples, and resources online, talk about algorithmic trading of stocks, futures, forex, etc. They cover techniques like cointegration trading, ARIMA analysis, and many other more exotic ways to trade these instruments.
However, one thing I really never see is examples of doing this exactly same thing for options on, say, stocks. Obviously this will be a little more difficult due to the nature of options but it doesnt seem impossible.
Some examples I can (roughly) think of are trying to calculate better values for IV and such, and find mispricings in options that way. But there has to be some strategies based completely on the underlying, using the techniques above (such as ARIMA). What kind of examples of algorithmic trading of options exist?