I have a method to trade stocks/efts in which I am guaranteed to always to never do worst than my cost basis (not including commissions and bid-ask spreads). I cannot tell what it is as it may have monetary value beyond what can be shared in a forum. Does others have similar secrets? What do you do with them other than using them to swell your trading account? BTW, this secret is not buying zero-coupon bonds and investing the rest in risky assets, or buying stocks and shorting futures. Imagine this: if you are right on your direction you make money. If you are wrong you lose not a dime other than commissions and bid-ask spreads. That is what my secret does for me. I have been thinking most experts know it until I saw trading diaries that indicate they may not know this or at least they may not be applying it.