IFIX Real Estate Investment Funds Index: What It Measures and How It Is Built

Direct Answer

The IFIX Real Estate Investment Funds Index is a rule-based measurement of real estate investment funds (FIIs) listed on B3 weighted by market value, maintained by B3. Like every index it owns nothing: it is a number produced by applying a published weighting formula to a selected list of companies, revised on a schedule the provider sets.

What this index covers

The IFIX Real Estate Investment Funds Index covers real estate investment funds (FIIs) listed on B3 weighted by market value, within the Brazil market. B3 defines which securities are eligible, how they are selected from that pool, and how much each one contributes to the published number.

The index name does not state a fixed company count, so the number of constituents follows the eligibility rules rather than a target.

How constituents are weighted

Units are weighted by the market value of all units issued by each real estate fund, not by free float. No fund may exceed 20 percent of the index at inclusion or at periodic reviews, and any excess is redistributed proportionally to the other constituents.

The weighting method is the single biggest driver of how an index behaves. Two indexes covering the same market can diverge for years purely because they weight differently, which is why comparing index levels without knowing the method tells you very little.

What qualifies for inclusion

Units of real estate investment funds listed on B3 exchange and organized over the counter markets. A fund must be in the group that cumulatively makes up 95 percent of the tradability ratio (IN) in descending order and trade in 95 percent of sessions, both measured over the validity period of the three previous portfolios, and must not be classified as a penny stock.

Eligibility rules are the part of an index most readers never look at and the part that decides what it can possibly measure. A screen that excludes a whole sector, or admits only one listing venue, shapes the result far more than any day of trading does.

How long a listing must exist first

A fund with a public offering during the three previous portfolios can enter without a full listing history if the offering closed before the prior rebalancing, it has traded in 95 percent of sessions since trading began, and it meets the tradability and penny stock tests.

A seasoning rule is why a large new listing does not appear in an index the week it starts trading. It is a deliberate lag, and it means an index can under-represent a fast-growing part of the market for months at a time.

The rule that surprises people

A fund is removed during a portfolio if its issuer fully redeems its units, and weights use all units issued rather than free float.

References

• B3: B3 Metodologia do Indice de Fundos de Investimentos Imobiliarios (IFIX), as published 2020. Every rule described on this page is taken from this document.

Current IFIX Real Estate Investment Funds Index constituents

B3 publishes and licenses the IFIX Real Estate Investment Funds Index constituent list. Swoopr does not republish it here. The provider's own page is the authoritative source for current membership and weights.

B3: official IFIX Real Estate Investment Funds Index page

Related reading

• All stock market indexes: how indexes are built, weighted and revised.
• Emerging Markets 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