In the era of central bank's helicopter money, the market will always be skyrocketing up and up given enough time.
What's the strategy to profit from indices?
Only short the market when its in a state of euphoria /irrational exuberance bubble, or sell when it is confirmed (20% drawdown). Otherwise, you really have no reason not to long at every chance.
// Credits to @LazyBear
// This is an experimental indicator (Originaly coded by Lazybear) modified by @haidinurhasfi by applying the Fisher Transform to Twiggs Money Flow.
// Tune the length according to your trading style and instrument