High retail concentration in small companies; many left to fend for themselves in penny stocks
Among other scrips, which would be shifted to the trade-to-trade segment include 3i Infotech, Bartronics India, Ramky Infrastructure and Zenith Birla (India) Ltd.
This measure will ensure that the price of a scrip cannot move upward or downward beyond a limit set for the day.
Tata Steel (then Tata Iron and Steel), the most valuable index company in 1991, is now the least valuable.