The returns for your portfolio are always calculated using a time-weighted rate of return. This is to avoid distorting performance due to deposits or withdrawals.

Essentially to calculate the return for your portfolio, we calculate the return for each sub-period and then multiply these returns.

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Example:

Alice put in \$1000 during the first month and gains 10%. She then decides to put in another \$2000 and gains 5% during the second month. Her ending balance is \$3255.

Bob also put in \$1000 at the same time and gained 10%. He then decided to take the profit and withdrew \$100. During the second month, he gained 5%. His ending balance is \$1050.

Their end results are different yet the performance is the same. The returns should reflect that.

So to calculate time-weighted rate of return, we just multiply (1 + 0.1) * (1 + 0.05) - 1 = 0.155 or 15.5%

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If you still find that your returns are wrong, please send a message into the in-app chat describing your situation, we will check and correct everything 😃