If I had an investment strategy that succeeded 90% of the time

>>1631309
Fuck the public, just tell me! Let's see what happens

>>1631309
if you did come up with such a thing, you would be smart enough to figure out why it would near instantaneously fail the moment you went public with it.

>>1631351
Warren Buffet has told everyone how he invests. Hes Still doing pretty good though. So i dont get how disclosure will make a strategy useless?

>>1631360
He hasn't disclosed anything. The advice he gives can already be found in a million books.

>>1631360
Depends on how the strategy works.

If its a strategy in the idea that "if x happens, do y", it'll start to fail because what occurs after x happens will change.

Warren Buffet's works because it isn't a strategy, but a school of thought. The actual "strategy" is Buffet's personal skill.

>>1631309
Use a simple analogy: Say you knew of a group of stocks which will pay a 15% dividend over the next year /w 90% probability of paying and not significantly declining in value. Say the average dividend of low risk stocks is 3%. Without loss of generality let's take their prices to be $10. Then the moment this information goes public people will begin to buy those stocks because they want the dividend. They will drive the price of the stocks up until, at the very least, they reach $50. If you now buy at those prices you will get a 3% dividend.
The moral of the story is that the value of any arbitrage like strategy (basically anything with high probability of beating market returns at a given risk profile) will quickly fall to 0 (matching market returns ~ 0 strategy value) once the strategy is revealed to a large enough pool of investors.