Here is what I'm trying to do: On an Esignal 60-Interval chart, I plot the 5 day MA and 20 day MA, (both calculated by closing prices.... no offsets) - I am trying to replicate these numbers in my Excel spreadsheet.... I have all the historical prices and the real-time quote.... *What I don't understand is this: On my spreadsheet, I currently calculate the MA using the past 19 closing prices with the current real-time quote, (for the 20 day MA).... I do the same for the 5 day MA, (obviously using the past 4 days closing prices with the current real-time quote) - why do these numbers differ from what the Esignal charts show? Moreover - why do the MAs differ depending on what time-frame of chart you are plotting? For example, on a 5-Interval chart of DE the 20 day MA is currenty 42.97...... and looking at a 60-Interval chart of DE, the 20 day MA is 42.80.... if these MAs are all figured on closing prices and the current price, shouldn't they be the same accross all time frames?