BSE stock Classification - A, B1, B2, C, F, Z groups

The scrips traded on the BSE have been classified into 'A', 'B1', 'B2', 'C', 'F' and 'Z' groups.

• The 'A' group shares represent those, which are in the carry forward system (Badla).
• The 'F' group represents the debt market (fixed income securities) segment.
• The 'Z' group scrips are the blacklisted companies.
• The 'C' group covers the odd lot securities in 'A', 'B1' & 'B2' groups and Rights renunciations.
• The 'T' group Group represents scrips which are settled on a trade-to-trade basis as a surveillance measure.
• The 'G' group includes all governmental securities for retail investors
• The 'TS' Group consists of scrips in the "BSE-Indonext" segment, which are settled on a trade-to- trade basis as a surveillance measure.
• The 'S' group represents scripts forming part of the “BSE-Indonext” segment.

More information:

Group A


It is the most tracked class of scripts consisting of about 200 scripts. Market capitalization is one key factor in deciding which scrip should be classified in Group A.
According to BSE circular dated February 5, 2008 the criterion to get listed in Group A is
1. Company must have been listed for minimum period of 3 months.

Exceptions:

* The Company can be directly listed in group 'A' provided the market capitalisation of a company being listed, based on its issue price, is higher than the average market capitalisation of 100th company in the existing group 'A' as per the ranking based on preceding 3 months data.

* Any company permitted to be traded in F&O segment from date of its listing shall be directly listed in group 'A'.

* Companies listed subsequent to any corporate action involving merger/ demerger/ capital restructuring etc.

2. Companies traded for minimum 98% of the trading days in past 3 months shall be considered eligible.

3. Companies with minimum non-promoter holding of 10% as per the shareholding pattern of most recent quarter shall be considered eligible. The criteria of minimum 10% non-promoter holding shall not be applicable to public sector undertakings (PSUs).

4. The weightage of 75% and 25% shall be given to ranking on three monthly average market capitalisation and traded turnover respectively to arrive at the final ranks.

5. The list derived, based on final rank shall be screened for compliance and investigation. Based on this screening, the list of top 200 companies shall constitute group 'A'.

6. The group re-classification shall be reviewed twice in a year i.e. February and August.

7. On inclusion of any new Company in group 'A' based on criteria 1(a) or 1(b) detailed above, the last company in the existing group 'A', based on its final rank calculated on data preceding three months shall be excluded.
Group S

“The Exchange has introduced a new segment named “BSE Indonext” w.e.f. January 7, 2005. The “S” Group represents scripts forming part of the “BSE-Indonext” segment. “S” group consists of scripts from “B1” & “B2” group on BSE and companies exclusively listed on regional stock exchanges having capital of 3 crores to 30 crores. All trades in this segment are done through BOLT system under S group.”

Group B1 & B2:

All companies not included in group ‘A’, ‘S’ or ‘Z’ are clubbed under this category. B1 is ranked higher than B2.
B1 and B2 groups have been merged as a single Group B effective from March 2008.

Group Z

The 'Z' group was introduced by BSE in July 1999 and includes companies which have failed to comply with its listing requirements and/or have failed to resolve investor complaints and/or have not made the required arrangements with both the depositories, viz., Central Depository Services (I) Ltd. (CDSL) and National Securities Depository Ltd. (NSDL) for dematerialization of their securities.