I could if I had the data but I havent found it anywhere. I mean, long-term data (going back to the 20s). Gold is sorta similar due being a real asset and being protected against inflation so it could be considered a proxy
Using portfolioanalyzer.com with a free account, you can run analyses back to 2007 with REITS, gold, commodities and more. As below, the drawdowns are substantial. https://gyazo.com/18bfe0e30aff92a042b32b7839f7d017
The best combination of long puts and long SPY is below. The long put strategies are over-hedging with WOTM long-term and under-hedging with OTM short-term puts. This combination had a drawdown of 17%, annualized returns of 7.5%, Sharpe of 0.76. For comparison, SPY had a drawdown of 60%, annualized returns of 10% and a Sharpe of 0.72 from 2007 to present. https://gyazo.com/b7474c5ae2eae35aa7210779c111791e
With that time horizon - btfd seems a better strat than $ cost averaging. But you have to wait longer. You can also wait until there's a big drawdown, then sell ATM puts when vol is high - it goes up a LOT during a drawdown. Then you collect either a high premium, or you get in a much better price, depending on whether SPY ends up ITM or OTM. So every time there's a strong dip (2%+ I'd guess), you sell 2-5 ATM puts for your budget on SPY. Month out should be about right. You'll probably only get assigned once a year, I'd guess.
Ironchef It compares favorably. Return is better. Volatility is lower. Risk is much less. If anyone is interested I can put a risk slide together. https://gyazo.com/0130c6f405b5bd1ce61d28923ba24eef
I hate to say this, but I totally agree! Disclosure: I have some short positions on all indices set up during the last week averaged up.