Hi David,Average daily range, really, remember indicators do not predict the future they only show what has happened so useless really.
As you've stated in other posts that you're new to trading - please allow me to offer a small tip that will stand you in good stead along your journey. . .
Don't make assumptions based on logic or accept blindly what you read - regardless of the source. You have to test everything for yourself and arrive at your own conclusions. Your statement above is absolutely fine if you've tested all indicators and found that for you personally none of them offer any predictive qualities. By the same token, if you're only interested in indicators that predict and nothing else then, based on said research, you can conclude they're all useless. Unless and until you've done that, I recommend you keep an open mind, especially as some indicators are classed as predictive. And, as I say, just because you might conclude all indicators are useless, it doesn't mean that all other traders will reach the same conclusion. Indeed, I can assure you they won't - and don't!