New Delhi, Dec. 10 -- Breakout stocks to buy or sell: The Sensex and Nifty 50, key stock market indices, fell for the second straight day on Tuesday, December 9, driven by subdued global sentiment ahead of the US Federal Reserve's upcoming policy decision.

The Sensex dropped by 436 points (0.51%) to close at 84,666.28, and the Nifty 50 declined by 121 points (0.47%) to finish at 25,839.65. In contrast, the mid-cap and small-cap sectors recovered from earlier losses and outperformed the major indices, with the BSE Midcap index rising 0.60% and the Smallcap index increasing by 1.27%.

Sumeet Bagadia, Executive Director at Choice Broking, believes that the Indian stock market sentiment has improved as the Nifty 50 index bounced back after t...