GMR Infrastructure Limited future today was top gainer in F&O segment. With 8% plus move, stock future closed at 17.8 and also short term fresh high for the stock. Underlying stock price trend and momentum both are strong bullish. And stock future is heading towards 18 and 19.1 target zones. 19+ levels can be expected in December series. On the downside, 17.2 and 16.4 support zones and stop loss levels for long traders. Today GMRINFRA 17.5 call options given almost 100% plus gains in intraday.