Tech View: Nifty key hurdle at 18,777-18,888. What should traders do on Wednesday

India VIX was down by 1.16% from 11.24 to 11.11 levels. Volatility cooled off today, which comforted the bulls at higher zones. Options data suggests a broader trading range between 18,500 to 18,900 zones while an immediate trading range between 18,600 to 18,800 zones.