FAQ: Calculating Financial Statistics - Aggregate Across Time I

This community-built FAQ covers the “Aggregate Across Time I” exercise from the lesson “Calculating Financial Statistics”.

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This exercise can be found in the following Codecademy content:

Analyze Financial Data with Python

FAQs on the exercise Aggregate Across Time I

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I was wondering why we are using only 252 days instead of 365 days. As far as I understand it the banks calculate with the full year and not with the business days only. Please correct me if I am wrong

There are 252 trading days in a typical year.

Hi, I understand the logic behind the use 252 trading days. However, I wonder if it’s possible to compare investments A and B as we multiple investment B by 12 (i.e., 365 days). Shouldn’t we divide the monthly return by 30 and then multiply it by 265?

Thanks for your amazing work!
Quentin :slight_smile: