The Sensex gained over 88 points in opening trade led by encouraging third quarter earnings posted by State Bank of India amid a firming trend on other Asian bourses. The Sensex, which had lost 39 points in the previous session on Friday, rose by 88 points to 19,096 today, with banking, realty and consumer durables stocks attracting the most interest. Similarly, the broad-based National Stock Exchange Nifty index moved up by 28 points to 5,724 points in the first few minutes of trade.