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
Cheaper credit expected to drive Sri Lanka’s business landscape in 2026
The opening weeks of 2026 are offering a glimmer of cautious hope for the business community weary from years of economic turbulence and steep financing costs. The Central Bank’s latest weekly economic indicators signal more than just macroeconomic stability. They point to early signs of a long-awaited trend; a measurable dip in borrowing costs.
“If sustained, this shift could transform steady growth into a robust, investment-led expansion,” a senior economist told The Island Financial Review.
The benchmark Average Weighted Prime Lending Rate (AWPR) declined by 21 basis points to 8.98% for the week ending 16 January, according to the Central Bank.
“For entrepreneurs and CEOs, this is not just another statistic. It could mean the difference between postponing an expansion and hiring new staff. Across boardrooms, the hope is that this marks the start of a sustained downward trend that holds through 2026,” he said.
When asked about the instances where Treasury Bills are not fully subscribed by the investors, he replied,” Treasury Bill yields remained broadly stable, with only minimal movement across 91-day, 182-day, and 364-day tenors. Strong demand was clear, with the latest T-Bill auction oversubscribed by about 3.5 times. This sovereign-level stability creates room for the gradual easing of commercial lending rates, allowing the Central Bank to nurture a more growth-supportive monetary policy.”
Replying to a question on how he views the inflation numbers in this context, he said, “The year-on-year increase in the National Consumer Price Index stood at a manageable 2.4% in November, with core inflation at 2.2%. Such an environment should allow interest rates to fall without sparking a price spiral. For businesses, it means the real cost of borrowing adjusted for inflation, and it is becoming more favourable for them. While consumers still face weekly price shifts in vegetables and fish, the broader disinflation trend gives policymakers leeway to keep credit affordable.”
Referring to the growth trajectory, he mentioned, “With GDP growth provisionally at 5.4% in the third quarter of 2025 and Purchasing Managers’ Indices signalling expansion in both manufacturing and services, the economy is in a growth phase. However, to accelerate this momentum businesses need capital at lower cost to modernise machinery, boost export capacity, and spur innovation. Affordable credit is, therefore, not merely helpful, it is essential to shift growth into a higher gear.”
In conclusion , he said,” The coming months will be watched closely, because for Sri Lankan businesses, a sustained decline in borrowing costs isn’t just an indicator; it’s the foundation for growth. There’s hope that this easing in the cost of money will prevail through most of the year.”
By Sanath Nanayakkare ✍️
Business
Mercantile Investments expands to 90 branches, backed by strong growth
Mercantile Investments & Finance PLC has expanded its national footprint to 90 branches with a new opening in Tangalle, reinforcing its commitment to community accessibility. The trusted non-bank financial institution, with over 60 years of service, now supports diverse communities across Sri Lanka with leasing, deposits, gold loans, and tailored lending.
This physical expansion aligns with significant financial growth. The company recently surpassed an LKR 100 billion asset base, with its lending portfolio doubling to Rs. 75 billion and deposits growing to Rs. 51 billion, reflecting strong customer trust. It maintains a low NPL ratio of 4.65%.
Chief Operating Officer Laksanda Gunawardena stated the branch network is vital for building trust, complemented by ongoing digital investments. Managing Director Gerard Ondaatjie linked the growth to six decades of safeguarding depositor interests.
With strategic plans extending to 2027, Mercantile Investments aims to convert its scale into sustained competitive advantage, supporting both customers and Sri Lanka’s economic progress.
Business
AFASL says policy gap creates ‘uneven playing field,’ undercuts local Aluminium industry
A glaring omission in the Board of Investment’s (BOI) Negative List is allowing duty-free imports of fully fabricated aluminium products, severely undercutting Sri Lanka’s domestic manufacturers, according to a leading industry association.
The Aluminium Fabricators Association of Sri Lanka (AFASL) warns that this policy failure is threatening tens of thousands of jobs, draining foreign exchange, and stifling local industrial capacity.
“This has created an uneven playing field,” the AFASL said, adding that BOI-approved developers gain cost advantages over local fabricators, while government revenue and foreign exchange are lost through imports of products already made in Sri Lanka.
The core of the issue lies in a critical policy gap. While raw aluminium extrusions are protected on the BOI’s Negative List – which restricts duty-free imports – finished products like doors, windows, and façade systems are not. Furthermore, the list’s lack of specific Harmonised System (HS) codes allows these finished items to be imported under varying descriptions, slipping through duty-free.
This loophole, the AFASL argues, disadvantages a robust local industry that employs over 30,000 people directly and indirectly. Supported by five local extrusion manufacturers, a skilled NVQ-certified workforce, and a well-established glass-processing sector, the industry has been operational since the 1980s.
The association highlights that the damage extends beyond fabrication. The imported systems often include glass, hinges, locks, and accessories, all of which are produced locally, thereby cutting off demand across the entire domestic value chain. Small and medium-sized enterprises (SMEs), a segment government policy aims to support, are feeling the impact most acutely.
Since May 2025, the AFASL has been engaged in talks with the BOI, Finance Ministry, and Industries Ministry. Their key demand is to include specific HS codes on the Negative List and to list fabricated aluminium doors, windows, and curtain wall systems under HS Code 7610 to close the loophole.
While welcoming supportive recommendations from the Industries Ministry to add these products to an updated Negative List, the AFASL sounded a note of caution. It warned that proposed reductions in the CESS levy could further incentivise imports, undermining the sector’s recovery from the economic crisis.
The association also pointed to an inequity in the current framework. With most subsidies withdrawn, BOI-registered property developers continue to benefit from duty-free imports, while locally made products remain subject to heavy taxes for the general population.
The AFASL is urging policymakers to align investment incentives with national industrial policy, protect domestic manufacturing, and ensure fair competition across the construction supply chain to safeguard an industry vital to Sri Lanka’s economy.
By Sanath Nanayakkare ✍️
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