Business
Methodology revision of All Share Price Index
Colombo Stock Exchange (CSE) is planning to revise the calculation methodology of All Share Price Index (ASPI) by changing the constituent weighting method from full Market Capitalization to free float-adjusted Market Capitalization. The following interview intends to provide some essential information in this regard.
1. What is a stock market index and the purpose of it?
A stock market index is a statistical measure which shows changes taking place in the stock market. Hence, an index reflects overall market sentiment and direction of price movements of the stock market. These indices can be calculated for the whole market (broad market index), a select segment (sector indices) or based on any other theme (eg; Dividend Index, ESG Index etc.). Indices are mainly useful in determining the return of the market segment, understanding the overall market direction.
2. What are the different types of calculation methodologies?
There are various types of calculation methodologies based on different aspects. One such aspect is the weighting of index constituents. Two major weighting schemers are weighting index constituents on full market capitalization of each constituent and weighting index constituents on float adjusted market capitalization of each constituent.
3. What is float adjusted market capitalization?
Simply, this means total market capitalization multiplied by the public holding percentage. Public holding is the portion of the issued quantity of shares readily available for investors to trade and expressed as a percentage. This is calculated by companies and disclosed in interim financial statements. The definition of public holding can be found in ‘Contents Definitions and Introduction’ under Listing Rules that can be accessed at https://cdn.cse.lk/pdf/cse-rules/listing-rules/Contents-Updated-as-at-22-06-2021.pdf
For example, in a given company the public holding percentage is 19% means that only 19% of the issued quantity of shares are readily available to go hand in hand among investors in general. The balance 81% is held by strategic investors which we cannot expect to be traded in the market in general. Accordingly, 19% of the market capitalization (known as float adjusted market capitalization) is ready to go hand in hand- on daily basis.
4. What is the ASPI methodology revision of 2022?
The ASPI has been calculated based on full market capitalization which means the index constituents are weighted based on the full market capitalization of each security. Alternatively, it could be weighed on float adjusted market capitalization. The revision is to change the weighting scheme from full market capitalization to float adjusted market capitalization.
Since companies disclose public holding quarterly in their interim financial statements the index weights would be revised quarterly (known as Index Rebalancing).
5. What is capping and why capped at 5%?
Capping is the technique use in index calculation to address the issue of over representation of one of few securities in an index. Index is capped at 5% level to address the issue of over representation of one of few securities in an index. Once capped the excess weight is distributed proportionately among the remaining securities in the index. The same procedure is repeated until no security is exceeding 5% cap rate.
We back calculate Float ASPI index and capped at different cap rates. Based on return per unit of risk, 5% capping level has been the best.
6. What makes CSE to move for this kind of change?
Indices based on float adjusted market capitalization are better able to generate realistic market returns than those based on total market capitalization because they are based on tradable quantities.
Since the introduction of this idea in early 2000, most of the markets have adopted this in their index calculation methodologies. All the index service providers such as S&P Dow Jones, FTSE are using this method and is considered as a best practice in index calculation methodologies.
7. What are the advantages and disadvantages of this move?
The main advantages of the revised index would be that it will generate more realistic returns and the index methodology would be in par with generally accepted best practices of index calculations. There are no disadvantages such.
8. Will the ASPI index value change suddenly due to the implementation this change itself?
No. On the effective date of the methodology revision the ASPI will start moving from the same value that it closed on the day immediately prior to the revision. When this methodology revision is implemented, the serial continuity of the index will be maintained and there will be no sudden shift of the index level solely due to the launch of the new index.
9. How will it affect the ASTRI index (All Share Total Return Index)?
All share Total Return Index (ASTRI) measures the total return (Price Return + Dividend Return). The ASTRI reflects returns due to both price changes and dividend income. After the implementation of the methodology revision of ASPI, the price return component will be based on float adjusted market capitalization. This means that ASTRI is also calculated based on float adjusted market capitalization
10. Is the index methodology of CSE publicly available?
Yes. It is available on CSE website. https://cdn.cse.lk/pdf/Index-Methodologies-of-Colombo-Stock-Exchanhge.pdf
Business
Ceylon Chamber welcomes IMF review approval, urges continued reform momentum amid external pressures
The Ceylon Chamber of Commerce welcomes and commends the Government of Sri Lanka on the successful completion and approval of the 5th and 6th Reviews under the International Monetary Fund (IMF) Extended Fund Facility (EFF) programme. This milestone enables Sri Lanka to access approximately USD 695 million in financing support, reinforcing confidence in the country’s ongoing economic recovery and reform agenda.
At a time of heightened global uncertainty and external sector pressures arising from the conflict in the Middle East, the Chamber believes this approval sends a strong positive signal to markets, investors, and the private sector. Continued engagement with the IMF programme remains critical to preserving macroeconomic stability, restoring investor confidence, and strengthening Sri Lanka’s external resilience.
The Chamber notes that the IMF review underscores the importance of sustaining structural reforms, including improving the investment climate, enhancing competitiveness, and accelerating infrastructure and institutional reforms that support private sector-led growth.
At the onset of the Middle East crisis, The Ceylon Chamber of Commerce submitted recommendations to the Government addressing several immediate economic and energy-related risks. These recommendations remain highly relevant in managing emerging pressures on the exchange rate, energy costs, and overall external sector stability.
In line with the Ceylon Chamber’s earlier recommendations, the following priority measures are reiterated:
Strengthen and optimize the fuel QR system as a digital platform to improve efficiency and facilitate better targeted support mechanisms for priority groups such as public transport and school transport operators, while maintaining cost-reflective pricing principles.
Continue to ensure clear and consistent communication on the direction of economic policy to further reinforce confidence among businesses and investors, support orderly exchange rate expectations, reduce market uncertainty, and sustain overall macroeconomic stability.
The Ceylon Chamber also emphasises the importance of accelerating reforms that improve Sri Lanka’s competitiveness in trade, investment, tourism, logistics, and digitalisation. Advancing these reforms will be essential to sustain and improve macroeconomic stabilisation and resilience. The Ceylon Chamber has also urged its members to act responsibly during this critical period by supporting measures that preserve economic stability and safeguard Sri Lanka’s long-term interests.
The Ceylon Chamber of Commerce remains committed to actively engaging with policymakers and stakeholders in supporting progressive economic reforms, the successful completion of future IMF programme reviews, and Sri Lanka’s transition towards a resilient and competitive economy.
Business
Abans Finance launches maiden debenture issue listing on CSE
Abans Finance PLC (Abans Finance) recently marked the official listing of its maiden 13,384,000 debentures on the Colombo Stock Exchange (CSE) with a bell ringing and market opening ceremony held at the CSE trading floor.
The offer for subscription for the initial issue of ten million (10,000,000) listed, rated, senior, unsecured, redeemable five-year (2026/2031) debentures of LKR 100/- each, was rapidly oversubscribed, having received subscriptions for 13,384,000 debentures for a value of LKR, 1,338,400,000/-, reflecting strong investor confidence in Abans Finance’s strengths and the debt market.
Abans Finance is a licensed non-banking financial institution and subsidiary of the Abans Group and currently operates with nine branches, nine customer centres and four kiosks in addition to the head office, leveraging on the island wide presence of Abans Group to reach customers across the island. Abans Finance services include finance leasing, hire purchase, mortgage loans, personal loans, real estate development and acceptance of time and savings deposits. Founded in 2006, the Abans Finance was also listed on the CSE in 2011 and enjoys a Fitch Credit Rating of A – (lka) Stable Outlook.
Through its first debenture, which carries an “A-” (lka) rating from Fitch Ratings Lanka Limited and was managed by NDB Investment Bank Ltd, Abans Finance aims to expand its asset base, strengthen loan portfolios, grow its presence by leveraging the Abans Group financial ecosystem to drive digital transformation and deliver integrated solutions.
K.J.C. Perera, Chairman of Abans Finance PLC and keynote speaker at the ceremony, remarked upon the company’s debenture issue, commenting “This milestone underscores strong investor confidence in Abans Finance PLC and strengthens our capital base as we advance our strategy for sustainable growth and innovation.”
Delivering his welcome address at the event Rajeeva Bandaranaike, CEO of CSE, remarked upon the debenture listing, stating: “Today’s listing of the debt issue by Abans Finance PLC reflects a broader engagement by companies to use the capital market for their funding requirements. More recently we have seen a fair growth in the primary issuances of debt. In 2024 approximately LKR 95 Bn was from debt. In 2025, LKR 113 Bn was raised through debt – and in 2026 approximately LKR 60 bn was raised through debt.”
2025 saw 22 debt listings including 3 new companies listing on the exchange by way of debt initial public offerings (IPOs) including several firsts in the country from GSS+ debt instruments (Green, Social, Sustainability linked), Shariah compliant debt instruments and High Yield Bonds, with access to investors and brokers facilitated by a fully digitized CSE platform, which can be accessed through CSE’s website and mobile app.
Business
Sun Siyam Pasikudah brings community together for coastal clean-up
Sun Siyam Pasikudah, Sri Lanka’s five-star boutique retreat and part of the Privé Collection within Sun Siyam, reinforced its commitment to community and conservation with a beach cleanup along Pasikudah Bay on 08th May 2026. Held under the group-wide Sun Siyam Cares umbrella, guided by “Caring for our People, Nature and Culture”, the morning brought together school students, hotel staff, and in-house guests for hands-on environmental action.
Unlike typical cleanup drives, this initiative placed education at its heart. Students from a local school joined guided sessions on coastal ecosystems, the impact of marine litter on biodiversity, and the role every individual plays in protecting Sri Lanka’s coastline, giving young people from the surrounding community a firsthand understanding of why this bay matters, ecologically, culturally, and economically.
Arshed Refai, General Manager of Sun Siyam Pasikudah, said: “What makes this cleanup different is who we did it with. When a child understands why this bay is worth caring for, its ecology, its beauty, what it means to the families who live here, that knowledge stays with them. That is the most sustainable investment we can make.”
Pasikudah Bay’s shallow, crystal-clear turquoise waters and the Eastern Province’s rich marine and cultural heritage, from centuries-old mosques and kovils to the vibrancy of Kattankudy, make it a coastline worth protecting. Participants spread across the shoreline collecting and sorting waste in line with the resort’s zero-waste management principles, while guests noted the activity deepened their connection to the destination beyond a typical resort experience.
Sun Siyam Pasikudah holds the Travelife Gold Certification across 147 criteria spanning energy, water, wildlife, waste, and community welfare. The resort grows over 38 varieties of fruits, vegetables, and herbs on its organic farm, operates solar-powered installations, has eliminated single-use plastics entirely, and sources locally wherever possible. The Sun Siyam Cares Fund supports CarePhant, backing the care of Kalo, a young elephant at the Elephant Transit Home in Udawalawe, ahead of his return to the wild in 2029.
As part of Sun Siyam Resorts, named Most Influential Sustainable Hotel Group of the Year at the 2025 GO TRAVEL Awards, initiatives like this reflect a sustained, year-round commitment to ensuring tourism on the East Coast is a force for renewal, not depletion. For reservations, visit www.sunsiyam.com/sun-siyam-pasikudah or call 065 205 5555.
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