Shrimpy does detect deposits and withdrawals from the exchanges which are supported by the social feature. If the exchange is not an exchange that is supported by our social program, it will not support the detection of deposits and withdrawals.
How are deposits / withdrawals calculated into performance?
Shrimpy uses the "Time-Weighted Rate of Return". This allows us to factor deposits / withdrawals into the the calculations for performance. You can read more about this method here: https://www.investopedia.com/terms/t/time-weightedror.asp