Monthly Returns-showing Sept before market opens?

Why would the stat matrix already be showing returns for September prior to market open for that month?

On MFS-Cyclical Model it shows September results at 7:00am est hour prior to market open for the month



Is this in anticipation of what is to happen?



Why would this be??



Thank you

[LINKSYSTEM_55644026]

We take snapshots of each system at intervals. The monthly stats you see are based on the change in equity between two snapshots. The implication is that snapshot 1 was take sometime before the market close on August 31 and snapshot 2 was taken on Sep 1 (but before the market opens). In other words, the September results may include a few hours of August.