Index Methodology Hub
FTSE Russell General rules ›

Corporate Actions and Events

Applies to Russell 1000 Index · Russell 2000 Index · Russell 3000 Index

Latest v7.1, latest ↗ No changes yet

Profile fields by outline item
FieldValueSource textReading (model)
G1 Scope, precedence and principles · 6 fields
Review cycle for guide At least annually
This document will be subject to regular review (at least once a year) by FTSE Russell.Open p.3 ↗
FTSE Russell reviews the guide regularly, at least once a year.
Covered indices Index series whose methodology specifically references this guide.
This document applies to any index series where the guide is specifically referenced in the index methodology documentOpen p.1 ↗
The guide applies only to index series that specifically reference it in their index methodology.
Precedence rule Read with the applicable ground rules or index methodology; the guide provides guidance and is not definitive in every circumstance.
these guidelines should not be construed as definitive rules that will determine FTSE Russell’s actions in all circumstances. FTSE Russell reserves the right to determine the most appropriate methodOpen p.3 ↗
The guide must be read with the ground rules or methodology of the applicable index series, and FTSE Russell may determine implementation for uncovered or complex events.
Principles Representativeness, accurate market representation, balance with passive-manager tracking and replicability, maximisation of available investment opportunity
FTSE Russell applies corporate actions and events to its indices on a daily basis, both to reflect the evolution of securities and to ensure that the indices remain highly representative of the global equity markets.Open p.4 ↗
FTSE Russell applies events daily to keep indices representative of global equity markets while balancing accurate market representation with passive-manager tracking.
Administrator FTSE Russell
FTSE Russell reserves the right to determine the most appropriate method of implementation for any corporate event which is not covered hereOpen p.3 ↗
The guide is issued by FTSE Russell.
Rulebook version v7.1
v7.1Open p.1 ↗ (not found verbatim in the PDF)
The document version is v7.1.
G4 Corporate events · 16 fields
Actionable event notice Minimum notice: 2 days; Events: stock mergers, cash mergers, tender offers, Delisting, Bankruptcy, equity offers, exchange offers
Actionable corporate events include stock and cash mergers, Tender offers, delisting, bankruptcy, equity and exchange offers. These action types will be provided with a minimum two-day notice.Open p.5 ↗
Actionable corporate events receive a minimum two-day notice, subject to the stated Russell Small Cap Completeness exception.
Dummy lines Temporary non-tradable instruments may be created ad hoc to reflect complex corporate events and support investor experience or replication.
Dummy lines are non-tradable instruments which have been temporarily created by FTSE Russell in order to reflect a corporate event.Open p.6 ↗
FTSE Russell may create temporary non-tradable dummy lines for complex corporate events and will provide notification when they are used.
Compulsory buyback A compulsory full buyback deletes the security at the last traded price, or at the redemption price if trading is halted.
A compulsory tender/buy back of all outstanding shares at a set price. The security is deleted from the index at the last traded price.Open p.11 ↗
Compulsory full share buybacks result in deletion at the last traded price or redemption price if trading is halted.
Tokenised shares Listed tokenised shares are ineligible, and conversions or issuance affecting an eligible share class are reviewed at the next quarterly review.
Tokenised shares are deemed ineligible. Where a company conducts a corporate event involving the conversion or the issuance of listed tokenised sharesOpen p.24 ↗
Listed tokenised shares are excluded, with impacts on the underlying eligible share class assessed at the next quarterly review.
Cash dividend Ordinary: Reinvested in total return indices on the ex date; no capital index divisor adjustment; Special: Price is reduced by the dividend before the open on the ex date; special dividends are excluded from total return index calculations; Recurring special rule: The fourth recurring special cash distribution is considered ordinary after more than three consecutive non-extraordinary occurrences
Regular cash dividends are those paid to shareholders out of a company’s profits or reserves. These cash dividends impact the total return and are reinvested across the index on the dividend ex date.Open p.8 ↗
Ordinary cash dividends are reinvested in total return indices on the ex date, while special cash dividends reduce price before the open and are excluded from total return calculations.
Bonus and split Shares and prices are adjusted according to the terms on the ex date, with no market capitalisation or divisor change; scrip and bonus issues follow the same pro-rata treatment.
A pro-rata distribution of shares (split) or a pro-rata consolidation (reverse split) of shares held by existing shareholders. No company market capitalisation change.Open p.7 ↗
Splits, reverse splits, bonus issues and same-stock scrip issues adjust shares and prices on the ex date without changing market capitalisation or the divisor.
Rights issue If the subscription price is at a discount to the cum-date market price, shares and price are adjusted according to offer terms on the ex date with a divisor adjustment; highly dilutive offers use temporary rights and cash lines.
FTSE Russell will only adjust the index to account for a right if the subscription price of the rights is at a discount to the market price of the stock at the close of cum date.Open p.11 ↗ (not found verbatim in the PDF)
A discounted rights or entitlement offer increases shares and adjusts price on the ex date, with special temporary-line treatment for offers greater than 10 for 1.
Other share changes Primary and secondary offerings may be updated intra-quarter when thresholds are met; private placements to restricted parties, warrant exercises and lock-up expiries are deferred to the next quarterly review.
Share and free float changes resulting from activity such as private placements to restricted parties, exercise of warrants and expiry of lock-ups, will be deferred to the next quarterly review.Open p.27 ↗ (not found verbatim in the PDF)
Share changes from offerings are implemented intra-quarter only where specified thresholds apply, while placements, warrant exercises and lock-up expiries wait for the quarterly review.
Capital reduction Capital repayments generally receive a price adjustment and divisor adjustment; ordinary dividends reported as capital repayments may follow company reporting policy.
Capital repayments are paid to shareholders as a return of capital and are generally applied with a price adjustment unless company policy is such that regular dividends are reported in this wayOpen p.8 ↗
Capital repayments are generally applied with a price adjustment and divisor adjustment, except where regular dividends are reported as capital repayments under company policy.
Merger acquisition Final mergers, acquisitions and tender offers can change membership and acquirer shares; cash targets are deleted at the last traded price or cash terms, while stock mergers increase acquirer shares under the offer terms.
Mergers and acquisitions (M&A) activity may result in changes to index membership as well as to the shares included within the index.Open p.16 ↗
Mergers and acquisitions are applied once final with appropriate notice, deleting targets and, for stock consideration, increasing the acquirer’s shares according to the transaction terms.
Spin off Eligible spun-off entities are temporarily added to the parent’s indices on the ex date and reviewed at the next quarterly review or reconstitution; ineligible entities are added temporarily and removed after listing and settlement.
The spin-off entity will be added to the same indices as the parent company, per the terms, on the ex date of the distribution.Open p.21 ↗
Spin-offs are added to the parent’s indices on the ex date, with eligible entities retained until the next review and ineligible entities removed after listing and settlement.
New listing An eligible IPO may be added before the announced review where a corporate action makes this appropriate and notice can be provided; otherwise the distributed or split-off portion is added at the event and remaining shares at the review.
An eligible IPO may be added to the index prior to the previously announced index review schedule, if a corporate action has deemed this to be appropriate and notice can be provided.Open p.4 ↗
An eligible IPO can be added early when it arises through a distribution or optional split-off and adequate notice can be provided.
Suspension Suspended constituents remain at last traded price for up to 20 business days; after review and a 20-business-day notice period they may be removed at zero value, subject to the stated exceptions.
Unless the circumstances set out in Section 4.17 apply, the constituent will continue to be included in the index for a period of up to 20 business days at its last traded priceOpen p.24 ↗
A suspended constituent is initially carried at its last traded price, then reviewed and may be removed at zero value after the prescribed notice period.
Delisting A constituent is deleted if delisted from all eligible exchanges, or if it has filed for delisting with no regulatory or shareholder approvals outstanding; confirmed delisting also triggers target-company deletion.
A constituent will be deleted if it is delisted from all eligible exchanges*. A constituent will be deleted if FTSE Russell becomes awareOpen p.23 ↗
Delisting from all eligible exchanges, or a delisting filing with no required approvals outstanding, causes constituent deletion with notice.
Bankruptcy A constituent is deleted on bankruptcy, bankruptcy protection, administration, receivership, insolvency, liquidation or local equivalents, with notice.
has become bankrupt, has filed for bankruptcy protection, enters into administration or receivership, commenced accelerated safeguarding procedures, is insolvent or is liquidatedOpen p.23 ↗
Bankruptcy, insolvency, administration, receivership, liquidation or equivalent proceedings trigger deletion.
Transfer of listing If an eligible listing remains after delisting from the represented exchange, nationality is reassessed and the company may transfer to the appropriate country index.
Where an existing constituent delists from the eligible exchange represented within the index but retains one or more additional eligible listings, then the company nationality will be immediately reassessedOpen p.24 ↗
A constituent retaining an eligible listing after removal from the represented exchange is reassessed by nationality and may be transferred between country indices.
G5 Shares, free float and weight factors · 8 fields
Quarterly information cutoffs March: Last business day of January; June: Last business day of April; September: Last business day of July; December: Last business day of October
The March, June, September and December review updates will be triggered by vendor changes and confirmed appropriately with the cut-off for new information occurringOpen p.25 ↗
The March, June, September and December updates use information cut-offs on the last business day of January, April, July and October.
Lockup expiry timing Lock-up expiries are implemented at the next quarterly review if expiry occurs on or before the information cut-off.
Free float changes resulting from the expiry of a lock-up will be implemented at the next quarterly review subject to the lock-up expiry date occurring on or priorOpen p.25 ↗
Free-float changes from lock-up expiries are applied at the next quarterly review when the expiry date is on or before the cut-off.
Greenshoe treatment Potential greenshoe shares are excluded initially; exercise is reflected in free float at the next quarterly review.
Greenshoes (over allotment option) – those shares potentially to be offered as a greenshoe will not be included in the initial calculationOpen p.25 ↗
Greenshoe shares are not included initially, and any free-float change from exercise is applied at the next quarterly review.
Share count basis Shares in issue are shares outstanding excluding treasury shares and unissued shares; index shares equal shares in issue multiplied by free float.
Shares in issue is defined as the number of shares outstanding excluding shares held in treasury and unissued sharesOpen p.25 ↗
FTSE Russell uses outstanding shares excluding treasury and unissued shares, and defines index shares as shares in issue multiplied by free float.
Free float sources company filings, company press releases, regulatory filings, local exchange notifications, official updates from data providers
The June updates will be implemented using data sourced primarily from company filings for all constituents and free floats will be rounded to 12 decimal places.Open p.25 ↗
FTSE Russell uses company filings and other public sources, including press releases, regulatory filings, exchange notices and official data-provider updates.
Share change threshold Quarterly share change: 1; Free float bands: From: 0; To: 5; Change threshold percentage points: 0.25, From: 5; To: 15; Change threshold percentage points: 1, From: 15; To: 100; Change threshold percentage points: 3; Intra quarter primary secondary: Investable market cap change USD: 1,000,000,000, Index share change percent: 5; Investable market cap change USD: 250,000,000
Cumulative share changes greater than 1%; For constituents* with a free float of 5% and less, cumulative free float changes greater than 0.25 of a percentage pointOpen p.25 ↗ (not found verbatim in the PDF)
Quarterly share and free-float updates use cumulative thresholds, while primary or secondary offerings can trigger intra-quarter updates under USD 1 billion or 5% plus USD 250 million tests.
Free float update timing Ftse: Quarterly updates in March, June, September and December; June updates apply regardless of size; Russell: Semi-annual reconstitution; Intra quarter: Primary and secondary offerings are updated outside the cycle when thresholds are met
the FTSE Russell indices will be reviewed quarterly for updates to shares outstanding and to free floats used within the index calculation.Open p.25 ↗
FTSE indices review shares and free float quarterly, Russell changes apply at the semi-annual reconstitution, and qualifying offerings may be updated intra-quarter.
Foreign ownership limit Share and free-float triggers are assessed from an international investor stance; where a constituent appears in global and domestic indices, the update applies only if thresholds are breached at the global level, which may occur because of a foreign ownership restriction.
The share and free float change triggers are calculated from an international investor stance. In the event that an index constituent is represented both in a global and domestic indexOpen p.27 ↗
Foreign ownership restrictions can affect the global-index share measure used to determine whether share and free-float update thresholds are breached.
G7 Review and constituent changes · 10 fields
Target deletion free float thresholds Bidder holding threshold percent: 90; Remaining free float threshold percent: 5; UK unconditional offer threshold percent: 75
The bidder’s shareholding has reached at least 90% (initial, extension or subsequent) and Shareholders have validly tenderedOpen p.18 ↗
Tender targets are normally deleted after at least 90% bidder holding and acceptance, remaining free float under 5%, compulsory acquisition intent, or confirmed delisting; UK constituents use a 75% threshold.
Minimum permissible price deletion A constituent whose price reaches the minimum permissible trade price is removed at the next review if still at that price at the quarterly review lockdown.
A constituent will be deleted if FTSE Russell becomes aware that the price of the constituent has reached its minimum permissible trade price.Open p.24 ↗
Securities at their minimum permissible trade price are removed with the next index review if the condition persists at the review lockdown.
Review frequency Quarterly
the FTSE Russell indices will be reviewed quarterly for updates to shares outstanding and to free floats used within the index calculation.Open p.25 ↗
FTSE share and free-float reviews occur quarterly, while Russell changes are implemented through the semi-annual reconstitution.
Data cutoff rule New information for March, June, September and December updates cuts off on the last business day of January, April, July and October, respectively.
with the cut-off for new information occurring on the last business day of January, April, July and October, respectively.Open p.25 ↗
Quarterly updates use the last business day of the month preceding each quarterly information cut-off schedule.
Announcement rule Event impacts and effective dates are communicated through daily corporate actions and events deliverables; actionable events receive minimum two-day notice.
The impact of the event and the effective date will be communicated to clients on a regular schedule, via the daily corporate actions and events deliverables.Open p.4 ↗
FTSE Russell communicates corporate-event treatment and effective dates through daily deliverables and gives at least two-day notice for actionable events.
Buffer rule June share and free-float updates apply regardless of size, meaning buffers are not applied; other quarterly updates use the stated cumulative change thresholds.
In June the shares and free float updates will be implemented regardless of size (i.e. buffers will not be applied).Open p.25 ↗
The June update does not apply buffers, while March, September and December updates are governed by the quarterly change thresholds.
Fast entry rule Timing: Before the previously announced review where a corporate action makes inclusion appropriate and notice can be provided
An eligible IPO may be added to the index prior to the previously announced index review schedule, if a corporate action has deemed this to be appropriate and notice can be provided.Open p.4 ↗
An eligible IPO arising from a corporate action may be added early if appropriate notice can be provided; no size threshold or excluded board is stated.
Ad hoc deletion triggers Delisting, Prolonged suspension, Acquisition, Bankruptcy, Free float drop, Other
The target company will normally be removed from the index with a minimum T+ 2 notice when either:Open p.18 ↗
Ad hoc deletion can follow confirmed delisting, prolonged suspension, acquisition or tender-offer conditions, bankruptcy or insolvency, free-float reduction, and minimum permissible price or other ineligibility events.
Deletion price Deleted stocks are removed at the last traded price when an active market exists; halted cash or compulsory-transaction targets are removed at cash or offer terms, and certain non-trading deletion cases use 0.0001.
Deleted stocks will be removed at the last traded price if an active market exists and the shares outstanding of the acquiring company will be adjusted simultaneouslyOpen p.5 ↗
The default deletion price is the last traded price, with offer terms for halted M&A targets and a nominal 0.0001 price in specified non-trading deletions.
Suspended constituent rule Suspended constituents are carried at last traded price for up to 20 business days, then may be placed under a 20-business-day deletion notice and removed at zero value if still suspended.
the constituent will continue to be included in the index for a period of up to 20 business days at its last traded priceOpen p.24 ↗
A suspended constituent is retained temporarily at its last traded price and may be removed after the suspension and notice process.

Open points · 11Model-written, for reference

  1. 1No effective date for v7.1 is stated.
  2. 2No standalone definition or detailed restricted-share schedule for free float is provided; the sections refer externally to Free Float Restrictions.
  3. 3No free-float banding factors are stated.
  4. 4No general weight-capping procedure is stated.
  5. 5No reserve list, replacement policy, turnover limit or general periodic constituent-review effective date is stated in this corporate actions guide.
  6. 6No treatment of a generic risk-warning or ST-style trading designation is stated.
  7. 7The broad universe eligibility rules and periodic constituent-review mechanics are not fully stated.
  8. 8Not coveredG2 Calculation and publication: not covered by this edition
  9. 9Not coveredG3 Prices and market data: not covered by this edition
  10. 10Not coveredG6 Disruption, emergencies and corrections: not covered by this edition
  11. 11Not coveredG8 Governance, changes and termination: not covered by this edition

Read by a language model (doubao-seed-2.1-pro) on 2026-10-03 · prompt g3.ca3b8e78 · schema 2 · 36 of 40 quotes found word for word in the PDF

This profile was written by a language model from the provider's text and may be wrong; the provider's document prevails.

Editions

  • v7.1, latest29 pp

Pick a file to view it here.

First edition on record; nothing to compare yet.

First edition on record; no changes yet.