Direct Answer
The All Share Price Index (ASPI) is a rule-based measurement of all equity securities listed on the Colombo Stock Exchange, price-weighted, maintained by Colombo Stock Exchange. Like every index it owns nothing: it is a number produced by applying a published weighting formula to a selected list of securities, revised on a schedule the provider sets.
What this index covers
The All Share Price Index (ASPI) covers all equity securities listed on the Colombo Stock Exchange, price-weighted. Colombo Stock Exchange defines which securities are eligible, how they are selected from that pool, and how much each one contributes to the published number.
The methodology document, published by Colombo Stock Exchange, sets the rules for inclusion and removal. Corporate actions, index reviews, and eligibility changes all move the constituent list on the timetable the provider specifies.
How constituents are weighted
Swoopr has not verified the weighting method for this index against Colombo Stock Exchange's current methodology document, so none is stated here rather than guessed. The provider link below is authoritative.
Current All Share Price Index (ASPI) constituents
Colombo Stock Exchange publishes and licenses the All Share Price Index (ASPI) constituent list. Swoopr does not republish it here. The provider's own page is the authoritative source for current membership and weights.
Colombo Stock Exchange: official All Share Price Index (ASPI) page
Related reading
- All stock market indexes: how indexes are built, weighted and revised.
- Asia-Pacific indexes: others covering the same region.
- Index concentration: measuring how much of an index sits in its largest holdings.
- Index rebalancing and inclusion effects: what happens to a stock when index membership changes.
Frequently Asked Questions
Who maintains the All Share Price Index (ASPI)?
Colombo Stock Exchange maintains the All Share Price Index (ASPI) and publishes the methodology document that defines its eligibility and weighting rules.
What does the All Share Price Index (ASPI) measure?
It measures all equity securities listed on the Colombo Stock Exchange, price-weighted. The index is a calculated number applying a weighting formula to a selected list of securities, and it holds nothing itself.
Where can I see the current All Share Price Index (ASPI) constituents?
Colombo Stock Exchange publishes the current constituent list. Swoopr does not republish it, because index providers license constituent data and Swoopr holds no such licence.