New Delhi, Oct. 27 -- Breakout stocks to buy or sell: After a six-day winning streak, profit booking at higher levels, concerns over a potential trade deal, and a surge in crude oil prices dragged Indian benchmark indices - Sensex and Nifty - lower on Friday. Banking stocks were the biggest laggards, with HDFC Bank accounting for nearly half of the decline.

The Sensex ended the session 344.52 points, or 0.41 per cent, down at 84,211.88, while the Nifty 50 slipped 96 points, or 0.37 per cent, to close at 25,795.15.

Broader markets also finished in negative territory but fared better than the benchmarks - the BSE Midcap index declined 0.25 per cent, and the BSE Smallcap index dipped 0.19 per cent.

Sumeet Bagadia, Executive Director at Ch...