Methodologies and Changes

Methodologies and Changes

Current Methodologies and Methodology changes of the Indices, administrated by Borsa Istanbul, can be followed on this page.

Methodology changes can be classified as “Material”, “Non-Material” or “Urgent Material”.

Methodology changes, defined as “Material” by Borsa Istanbul, are open to consultation of stakeholders on this page, and comments can be submitted until the “Deadline for Consultation”. A summary of the submitted comments (only those that are permitted by the commenter) and Borsa Istanbul's evaluations regarding those comments are published on this page after the relevant changes put into effect.

“Non-Material” and “Urgent Material” changes can be put into effect without consultation.

There is no methodology change in consultation process.

Methodology Changes in Effect

BIST Stock Indices

Effective Date Type of Change Name of Methodology Methodology More Detail
27.12.2023 Material Change
BIST Market Cap Weighted Stock Indices
Updated Methodology
Relevant Announcement
10.11.2022 Urgent Material Change BIST Non-Market Cap Weighted Stock Indices Updated Methodology Relevant Announcement
22.12.2023 Non-Material Change BIST Market Cap Weighted Stock Indices Methodology Relevant Announcement
27.11.2023 Material Change BIST Market Cap Weighted Stock Indices Methodology Relevant Announcement
15.08.2023 Non-Material Change BIST Market Cap Weighted Stock Indices Methodology Relevant Announcement
10.11.2022 Urgent Material Change BIST Market Cap Weighted Stock Indices Methodology Relevant Announcement

BIST-KYD Indices

Effective Date Type of Change Name of Methodology Methodology More Detail
25.12.2023 Non-Material Change
BIST-KYD Indices  Updated Methodology  Relevant Announcement
24.02.2023 Material Change BIST-KYD Indices  Methodology Relevant Announcement
28.12.2022 Non-Material Change BIST-KYD Indices Methodology Relevant Announcement

BIST Gold Denominated Indices

Effective Date Type of Change Name of Methodology Methodology More Detail
25.12.2023 Non-Material Change
BIST Gold Denominated Indices 
Updated Methodology 
Relevant Announcement
14.12.2022 Non-Material Change BIST Gold Denominated Indices Methodology Relevant Announcement

BIST Strategy Indices

Effective Date Type of Change Name of Methodology Methodology More Detail
31.12.2003 BIST Risk Control Indices Updated Methodology Relevant Announcement
01.04.2016 BIST Leveraged and Short Indices Updated Methodology Relevant Announcement

TLREF

Effective Date Type of Change Name of Methodology Methodology More Detail
14.12.2022 Non-Material Change TLREF Updated Methodology Relevant Announcement

TLREFK

Effective Date Type of Change Name of Methodology Methodology More Detail
28.12.2022 Non-Material Change TLREFK Updated Methodology Relevant Announcement