I need help with financial calculations. I have 58 years (over 15000 days) of data for a stock. I would like to find a way to calculate the best and worst performance of any 20 day period (stock bought on day 1 and sold on day 20, or bought on day 2 and sold on day 21, or bought on day3 and sold on day 22, etc).
Can anyone tell me how to do this?
HI
if the values are in col a, Try the macro in the attached file.it lists max of successive 20 values in col B and min in col C
ravi
Yamar, I would think if the values are in column A, then the first value in column B20 would be:
=A20-A1
Then you copy that down the entire dataset. You now have the differential between stock prices on the begin/end of all 20-day periods in column B.
To get the best and worst performance:
=MAX(B:B)
=MIN(B:B)
To get the ROW where those values are found:
=MATCH(MAX(B:B),B:B,0)
=MATCH(MIN(B:B),B:B,0)
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