Domestic stock markets started Monday's session on a positive note amid choppy trade, shrugging off weakness in Asian peers on US-China trade concerns. The S&P BSE Sensex rose as much as 134.34 points to 39,569.06 in early trade, and the NSE Nifty moved to 11,876.65, up 32.55 points from the previous close. Advances in banking, auto and metal stocks were pushed the markets higher. Analysts expect some volatility in the markets ahead of the release of GDP data and the expiry of monthly derivatives contracts this week.