1. Convexity.
2. The historical excess of implied volatility versus realized volatility.
3. The historical performance of calendar spreads under volatility term structure inversion.
4. Reversion to mean under strictly defined conditions.
5. Scheduled event mispricing.
6. Regulatory change arbitrage.
7. Fading MaximumPossibleSuffering.
Can't say I get #7 (shorting the Ulcer index? Going contrarian at price/volume extremes? could be anything), but #3 just made a little light go on. I've been testing some theories I have around vol term structure recently, and... I'm just going to say that it was quite helpful, and thank you.
