Reliability of Renko and Heiken Ashi

Today during trading hours, at one price point Renko was showing the ITC stock as oversold but Heiken Ashi was showing the stock as overbought. Why it is so? On both these charts I was using Stochastic.

Actually what it shows is governed by some mathematical functions. That’s why they were showing different things; Its not uncommon, that they show the same sometimes and different sometimes. It’s up to you how you react to signals .