Need help understanding how to get the ROI for each Index.
I was told by the Help Dest at TM that the ROI (for e.g.Trader Daily Technical Analysis ROI) could be worked out by looking at the Index All Time Performance vs BTC (Since Index Began) charts and hovering over the day. Then subtracting todays from 30 days ago. So (31 Aug )239.46% - 148.40% 31 july. Which would indicate that the monthly ROI = 91.06%.
However, if I use the ROI in the Index Holdings and Average them out the monthly ROI = 37.51%
Can anyone help explain which method is correct?
Thanks in advance