/biz/ - Business & Finance

Suppose we have link at 3$ and it's at the top, now we expect that it's more than 50% chance it goes down, so we sell it, and put tp at +10% and sl at -10%, everything good so far right?
Now if I had 1000 links and I sell it and rebuy at 2.70 (10% drop) then I have 1111 link, that's 11.1% increase.
if the price goes up and I rebuy at 3.3, I have 909 link, that's -9.1% decrease.
if it's 50/50, EV = 0.5*111 -0.5 * (91) = 10 link
we can expect to make 10 link on 50/50 chance, but if the chance is better than 50%, we get even more