Direct Answer
The PHLX Gold/Silver Sector Index is a rule-based measurement of U.S. and foreign companies involved in the gold and silver mining industry, maintained by Nasdaq. 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 PHLX Gold/Silver Sector Index covers U.S. and foreign companies involved in the gold and silver mining industry. Nasdaq 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 Nasdaq, 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 Nasdaq's current methodology document, so none is stated here rather than guessed. The provider link below is authoritative.
Current PHLX Gold/Silver Sector Index constituents
Nasdaq publishes and licenses the PHLX Gold/Silver Sector Index constituent list. Swoopr does not republish it here. The provider's own page is the authoritative source for current membership and weights.
Related reading
- All stock market indexes: how indexes are built, weighted and revised.
- United States 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 PHLX Gold/Silver Sector Index?
Nasdaq maintains the PHLX Gold/Silver Sector Index and publishes the methodology document that defines its eligibility and weighting rules.
What does the PHLX Gold/Silver Sector Index measure?
It measures U.S. and foreign companies involved in the gold and silver mining industry. 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 PHLX Gold/Silver Sector Index constituents?
Nasdaq publishes the current constituent list. Swoopr does not republish it, because index providers license constituent data and Swoopr holds no such licence.