Reflex: A New Zero-Lag Indicator by John F. Ehlers
For indicators to be useful, the indications they produce cant arrive too late. Toward that all-important goal, here we introduce a new indicator plus a variation on that indicator that you will want to add to your charts.
Reduction of lag is probably the most desirable characteristic for an indicator. That is because in trading, even if you get the right answer, it is of no value if the indication comes after the opportunity has passed ...