New Delhi, Dec. 9 -- Stock market benchmarks, the Sensex and the Nifty 50, extended losses for the second consecutive session on Tuesday, December 9, amid weak global cues ahead of the US Fed policy outcome.

The Sensex closed 436 points, or 0.51%, lower at 84,666.28, while the Nifty 50 ended the day with a loss of 121 points, or 0.47%, at 25,839.65. The mid and small-cap segments, however, erased losses and ended higher, outperforming the benchmarks. The BSE Midcap index ended 0.60% higher, while the Smallcap index jumped 1.27%.

Thanks to gains in the mid and small-cap segments, the overall market capitalisation of BSE-listed firms rose to Rs.465 lakh crore from Rs.464.2 lakh crore in the previous session, making investors richer by abo...