Seasonality (price percentage return) of a stock?


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I would like to calculate the seasonality of a stock (i.e., price performance = close price vs. open price) for a specific time frame (e.g., for the first 10 days of a month, for a specific month or for a quarter) during a particular interval (e.g., during last 5 years).

Example: calculate the average price performance of a stock for each Januray during the last 5 years.

I would like to be able to determine the time frame I want to analyze (e.g., 10 days, month, quarter, etc) and the time interval (e.g., 5 years, 10 years. etc.)

Thanks you

P.S.: it is something similar to what StockCharts have (
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