CSE launched a completely new Selective Index incorporating 30 scrips with base date 30th December 1999 and base index 1000. After revision in the Index  Advisory Committee Meeting held on 4th Sep 2018, two-layer methods are followed for selection of listed companies in the CSE30 Index. In the first layer method, basic criteria are considered for primary selection.

BASIC CRITERIA:
1. Must be listed with the Chittagong Stock Exchange Limited.
2. In case of IPO/New Issue, this should be on listing either with DSE or CSE for a minimum period of 2 years or remained in Commercial Production in   Bangladesh for the minimum Five years prior to its listing.
3. Companies that did not hold their Annual General Meetings regularly will not be considered.
4. Minimum market capitalization must be Tk. 600 million.
5. Must have at least 20% free floating share capital. Free floating share capital shall mean the share capital which will exclude Govt’s holding (other than ICB), Sponsors/Directors & their Associates’ holding plus other locked-in portions.
6. Must have positive revenue reserve/ retained earnings.
7. Must be traded for at least 70% trading days of the six-monthly review period.
8. Declared dividend in any of the last 2 years.
9. Company having negative Earning for last two consecutive years will not be considered.
10. Company falling under settlement category ‘Z’ will not be considered.
11. Financial Institution falling under the watch list of Bangladesh Bank will not be considered provided such information is available from an acceptable source.
12. Company failing to pay the listing fees for 2 years and/or if any penalty was imposed under the securities laws in last 2 years period will not be considered.
13. At least one company from each sector having minimum ten companies will be taken in the index if the scrip satisfies the above criteria and achieves the minimum point (50 points) as evaluated on the basis of the following Selection Criteria. The sector having less than seven companies will be considered to be a part of Miscellaneous Sector.
On being qualified on the basis of the Basic Criteria, the companies are required to meet the following further Selection Criteria to have the final berth in CSE30 Index.

SELECTION CRITERIA:
1. Higher Net Assets Value (NAV) per share
2. Higher rate of Earning Per Share (EPS)
3. Higher rate of Dividend
4. Lower Price Earning (PE) Ratio
5. Higher Dividend Yield (DY)
6. Higher rate of free floating in equity
7. Lower Price to Book Value Ratio
8. Higher liquidity in terms of trading day
9. Higher liquidity in terms of number of contracts
10 Longer duration of continuous remaining in the CSE-30 Index
 

CSE50 (Benchmark Index) is constructed in order to provide an appropriate benchmark for Bangladesh capital market. The index is well diversified and constitutes 50 leading and active stocks to ensure coverage of large portion of market capitalization of Chittagong Stock Exchange (CSE). CSE 50 index can be used for a variety of purposes such as benchmarking fund portfolios, launching of index funds, ETFs and structured products.

Eligibility Criteria for Selection of Constituent Stocks of CSE50:
i) CSE listed securities other than Mutual Funds and Corporate bonds and securities which are classified under ‘Z’ category are eligible for index.
ii) Companies should have traded for more than 75% of trading days during last 6 months period or from date of listing (whichever is latest).
iii) The remaining companies are then ranked by traded values and bottom 10% companies are excluded.
iv) Companies are then ranked by float adjusted market capitalization. Top 50 companies by market capitalization, from eligible universe satisfying criteria of liquidity are selected for index inclusion.

Index Re-Balancing:
Index is re-balanced on semi-annual basis. Data for 6 months ending June & December each year is considered for review.
 

CSE launched a new index named CSCX (CSE Selective Categories' Index) comprised A, B, G & N category companies from 14th February 2004 to replace the earlier CSE Trade Volume Weighted Index. The Base Date of this index is 15th April 2001 (when A, B & Z category were introduced) and Base Value is set to 1000. The new index includes all but not the Z category companies. This also excludes the companies/scrips which are debt securities, mutual funds, suspended for indefinite period and non-traded for preceding six months of review meeting. The index is reviewed in the Index Committee Meeting after every six months like other indices of CSE.
 

CSE ALL SHARE PRICE INDEX (CASPI)  includes all  companies, A good market representative index should involve:
• Scientific calculation formulas with clear adjustment procedure
• Logical scrip selection criteria
• Distinct base date
• Meaningful base value
The only index the CSE has been maintaining since 10th October 1995 is “CSE ALL SHARE PRICE INDEX (CASPI)” using Chained Paasche method. It faces question of clarity. This index was subject to unusual ups and downs and without a distinct base value. Therefore, in need of a clean slate CSE finds the date 1 January 2000 was the best date to start new Indices.

CSE All Share Price Index with new formula and base date 30th December 1999 (the last day of the year) and new base index of thousand (to mark the millennium) replaced the existing one.