Hi, i know how to calculate the sharpe ratio, but I have some practical questions: 1 you need time periods: do i take 1 day as a period? Do i take all the trades within 1 day together, or take each trade seperately? 2 do i annualize my return per trade and take the risk free return per year? If I take each trade seperately my sharpe ratio will probably have an extreme value because I have a very wide range of returns. If I have a trade with a 50% return it would give me a huge annualized return. So standard deviation will become huge too?