The market is usually open from 9:30AM to 4PM, (with the exception days that closes early); and that is 6.5 hours, there are 60 minutes in an hour. Hence 390 Rule.
The market is usually open from 9:30AM to 4PM, (with the exception days that closes early); and that is 6.5 hours, there are 60 minutes in an hour. Hence 390 Rule.