Ann: Trading Halt, page-59

Looks like we need to use an average of the past 5 session VWAP figures.

Anyone manage to get past 5 day VWAP figures to no more guessing?

Still reckon something else is going on - CR timing does not make sense. Investor relations will be copping an earful today IMO

"Attaining the MVWAP is quite simple after VWAP has been calculated. A MVWAP is basically an average of the VWAP values. VWAP is only calculated each day, but MVWAP can move from day to day because it is an average of an average. This provides longer-term traders with a moving average volume weighted price.
If a trader wanted a 10 period MVWAP, they would simply wait for the first ten periods to elapse and then would average the first 10 VWAP calculations.

This would provide the trader with the MVWAP that starts being plotted at period 10. To continue getting the MVWAP calculation, average the most recent 10 VWAP figures, include a new a VWAP from the most recent period and drop the VWAP from 11 periods earlier."

http://www.investopedia.com/articles/trading/11/trading-with-vwap-mvwap.asp