Mumbai:  The BSE benchmark Sensex has extended its losing streak for the third straight trading week, losing over 820 points as selling pressure triggered by poor second quarter earnings and a weak trend in global markets over the euro zone crisis battered stocks.
Sustained capital outflows from foreign funds also weighed on the market sentiment during the trading week to November 18.
Dealers said the selling pressure was felt mainly in realty, capital goods, power, metal, refinery, PSU and auto stocks.
Even though Cabinet has approved foreign direct investment of up to 26 per cent in the pension sector, the impact of the announcement on the market was mild.
The BSE Sensex slumped by 821.31 points or 4.78 percent, to 16,371.51 during the week ended November 18. The Sensex has lost nearly 1,433 points, or 8.05 percent, during the last three weeks.
The 50-share S&P CNX Nifty index also lost 263.05 points, or 5.09 percent, to 4,905.80 during the trading week. In a similar fashion, the BSE mid-cap index fell by 7.24 percent, while the BSE small-cap index shed 8.61 percent.
Among the 30 Sensex shares, 27 stocks declined and only three gained.
Infrastructure Company Jaiprakash Associates was the biggest loser in the Sensex pack last week. The stock tumbled by 18.16 percent due to its weak Q2 operating performance. Realty major DLF also slipped by 10.51 percent to Rs 204.35 on weak Q2 results.