Sensex, Nifty 50 end flat, extend losses for second consecutive week

The Sensex ended 3 points up at 77,540.83, while the Nifty 50 settled 20 points, or 0.08%, higher at 24,252. For the week, the 30-share pack slipped 0.60%, while the Nifty 50 declined 0.50%.