The Investor Movement Index®, or the IMXSM, is a proprietary, behavior-based index created by TD Ameritrade designed to indicate the sentiment of retail investors" portfolios. It measures what investors are actually doing, and how they are actually positioned in the markets.
The IMX does this by using data including holdings/positions, trading activity, and other data from a sample of our six million funded client accounts. This data is used to create a snapshot that can be monitored over time, or compared to other market indicators, to suggest the current sentiment of the real portfolios held by retail investors.
"History that repeats itself turns to farce. Farce that repeats itself turns to history."