Mumbai, Feb. 12 -- The frontline indices trim some losses and traded with substantial losses on Monday as concerns over persistent foreign institutional investor (FII) selling and escalating trade war tensions continued to weigh on market sentiment. The Nifty slipped below the 22,950 mark. Oil & gas shares witnessed selling pressure for the fifth consecutive trading session.

At 11:30 IST, the barometer index, the S&P BSE Sensex, slipped 498.77 points or 0.66% to 75,796.02. The Nifty 50 index lost 113.50 points or 0.58% to 22,938.30.

In the broader market, The S&P BSE Mid-Cap index fell 0.66%, and the S&P BSE Small-Cap index dropped 0.85%.

The market breadth was weak. On the BSE, 1,027 shares rose and 2,743 shares fell. A total of 121 s...