BIST 100 Adjusts Free‑Float Ratios for Fuzul Real Estate and Şekerbank

Borsa İstanbul has updated the free‑float ratios for two BIST 100 constituents, effective from 29 July 2026. The new ratios set Fuzul Real Estate Investment Partnership (FZLGY) at 35% and Şekerbank T.A.Ş. (SKBNK) at 46%, directly influencing their index weights.

A New Chapter in Index Calculations

The Bursa Istanbul announcement via the KAP platform confirms that these new free‑float percentages will be applied from 29 July 2026. This shift will reshape the market‑cap‑weighted structure of BIST 100, prompting investors to reassess portfolio allocations.

Fuzul Real Estate: 35% New Free‑Float

■FZLGY now has a free‑float of 35%.

■This represents a 5% increase over its previous figure.

■The higher free‑float boosts the company’s index weight, potentially enhancing liquidity.

Şekerbank: 46% New Free‑Float

■SKBNK’s free‑float is set to 46%.

■The change reflects a 10% decrease from the prior level.

■The reduction may lower the bank’s influence within the index, affecting its risk profile.

Key Takeaways for Investors

■Free‑float adjustments are pivotal for index weighting and currency exposure.

■Portfolio managers should consider rebalancing in light of these updates.

■Long‑term investors must track company‑specific changes to refine growth outlooks.

Caner Yılmaz: These revisions signal a shift in BIST 100’s dynamics. FZLGY’s increased weight underscores expectations for the real‑estate sector, while Şekerbank’s decreased ratio highlights a tighter liquidity stance in banking. Investors who integrate these changes into their strategies are better positioned for sustainable returns.