Buy or sell stocks, July 7 -- Benchmark indices, the Sensex and the Nifty 50, extended their winning streak to a fourth straight session on Monday, July 6, supported by the revival of the monsoon and renewed foreign institutional investor (FII) buying, which boosted market sentiment.

The Sensex climbed 521 points, or 0.67%, to settle at 78,285, while the Nifty 50 advanced 160 points, or 0.66%, to close at 24,430. Broader markets also ended in the green, with both mid- and small-cap stocks posting gains.

Nifty 50 opened on a positive note at 24,306.85, around 36 points higher than the previous close. After marking an intraday low of 24,287.10 in early trade, the index witnessed steady buying throughout the session and gradually moved hig...