About Stock Research M & A Index Rebalance Fixed Income Fund & Investment Tax Loss Harvest Careers Peer-to-Peer BETA

Index Rebalancing Calendar

March - June 2026 | All major global index events, dates, and passive flow estimates

View Full Calendar PDF

Global Index Coverage

Index Provider Selection Frequency Passive AUM Next Inflection Next Rebalance Impact Report
S&P 500United States S&P DJI Committee As-needed + Quarterly $5.3T Jun 12, 2026Q2 Announcement Jun 19, 2026Q2 Effective S&P 500
Russell 1000/2000United States FTSE Russell Rules-based Semi-annual (Jun + Nov) $10.6T Apr 30, 2026Rank Day (determines Jun membership) Jun 26, 2026Reconstitution ($245B vol) Russell
MSCI ACWI / World / EMGlobal MSCI Rules-based Quarterly (Feb/May/Aug/Nov) $16.5T May 12, 2026SAIR Announcement (100+ changes) Jun 1, 2026SAIR Effective MSCI
NASDAQ-100United States Nasdaq Rules-based Annual Dec + Quarterly weight $1.5T Jun 9, 2026Q2 Announcement Jun 19, 2026Q2 Effective NDX
FTSE 100United Kingdom FTSE Russell Rules-based Quarterly $800B Jun 4, 2026Q2 Review Snapshot Jun 19, 2026Q2 Effective Europe
DAX 40Germany STOXX Rules-based Quarterly $600B Jun 3, 2026Q2 Announcement Jun 23, 2026Q2 Effective Europe
STOXX Europe 600Europe STOXX Rules-based Quarterly $1.2T Jun 1, 2026Q2 Announcement Jun 22, 2026Q2 Effective Europe
Nikkei 225Japan Nikkei Inc. Committee Annual October $1.0T Sep 2026Annual Announcement Oct 2026Annual Effective -
TOPIXJapan JPX Rules-based (post-2026) Annual October $1.5T Aug 2026Phase 2 Base Date Oct 2026Phase 2 Selection -
Hang SengHong Kong HSI Co. Committee + Rules Quarterly $400B May 2026Q2 Announcement Jun 2026Q2 Effective -
CSI 300China CSI Rules-based Semi-annual $800B May 2026Semi-annual Announcement Jun 15, 2026Effective -
KOSPI 200South Korea KRX Rules-based Semi-annual $500B May 2026Semi-annual Announcement Jun 2026Effective -
S&P/ASX 200Australia S&P DJI Rules-based Quarterly $300B Jun 5, 2026Q2 Announcement Jun 19, 2026Q2 Effective -

Upcoming Events (April - June 2026)

Apr 30
CRITICAL
Russell Rank Day
Market cap at close determines ALL June membership. First semi-annual rank day in history.
$10.6T passive AUM tracking
May 12
CRITICAL
MSCI SAIR Announcement
Full reconstitution with 100+ changes expected. New free-float buffer methodology.
$16.5T passive AUM tracking
May 22
HIGH
Russell Preliminary Lists Posted
First public release of adds/deletes. Updates continue weekly through June 18.
Jun 1
HIGH
MSCI SAIR Effective
New composition goes live. Heaviest trading at close.
$16.5T passive AUM tracking
Jun 3
MEDIUM
DAX 40 Q2 Announcement
Quarterly constituent changes announced. Effective Jun 23.
Jun 9
MEDIUM
NASDAQ-100 Q2 Announcement
Weight cap adjustments. New rank-based rule (top 125 by market cap).
$1.5T passive AUM tracking
Jun 12
HIGH
S&P 500 Q2 Rebalance Announcement
Quarterly rebalance with possible major additions. Effective Jun 19.
$5.3T passive AUM tracking
Jun 19
HIGH
S&P 500, NASDAQ-100, FTSE 100 Effective
Multiple major indexes rebalance on the same day.
Jun 23
MEDIUM
DAX 40 & STOXX 600 Effective
European index changes go live.
$1.8T combined passive AUM
Jun 26
CRITICAL
Russell Reconstitution Effective
Largest single-day forced trading event globally. First semi-annual reconstitution in history. Estimated $245B volume at close.
$10.6T passive AUM tracking
Help us correct a discrepancy. If you notice something material email ryan+stock@rsfundmanagement.com. If you help us correct something material we'll grant partner level access for a year for helping improve our systematic content.