Stupid question about calculating averages

[case777]

When calculating averages you only include the data from trading days right? So a 20 day average would actually be 4 weeks worth of trading. this is so stupid, just need to be sure.

 

[arabianights]

Only trading days yes

For that reason careful if you're using these on two products with different trading days or hours

 

[PualoP]

And be very careful when using FX charts as some providers count the Sunday session as one whole day!!