Corporate actions and dates
A corporate action changes cash, securities or rights; interpreting its dates requires the documents, market and applicable settlement cycle.
What you will learn
- Distinguish mandatory and elective events.
- Separate announcement, ex-date, record date and payment date.
- Explain splits, rights and dilution without assuming economic neutrality.
- Avoid carrying calendars between the EU and United States.
Concept
What changes
A Corporate action may pay cash, change the share count or offer a choice. The announcement and official documents determine conditions, deadlines, rounding and treatment of fractions.
Process
Four dates, four questions
• Announcement: what has the issuer formally announced or approved? • Ex-date: when does ordinary trading cease to carry the entitlement under applicable rules? • Record date: which register does the issuer or agent use to identify positions? • Payment date: when is cash or stock distributed?
Calculation
Do not confuse mechanics with value
A Split multiplies shares and mechanically adjusts unit price; it does not itself create value. A Subscription right permits subscription under stated terms. Failing to exercise or sell, or relying on compensation, may cause Dilution and depends on the document and intermediary.
Risk
The timetable depends on market
As of 2026-08-27, the EU generally settles T+2 and plans T+1 for 2027-10-11; the United States has used T+1 since 2024-05-28. These differences can alter the relationship among trading, Settlement and entitlement. Never copy an ex-date rule from one market to another.
Worked example
Fictional example: Delta Norte dividend
Example facts
- Delta Norte announces €0.40 per share.
- Fictional ES-market document: ex-date 6 October, record date 7 October, payment date 9 October.
- Mara buys 100 shares on 6 October in ordinary trading.
Walkthrough
1: Buying on the ex-date means the trade excludes entitlement under this documented assumption.
2: Settlement occurring later does not by itself change the event rule.
3: Mara should not count €40: she must verify notice, market, account and any special trade arrangement.
Conclusion
Entitlement is decided by the trade date against the ex-date in the applicable market's notice, not by the settlement date or a rule copied from another market.
Lesson scope
- Jurisdiction
- Spain/EU and United States, always kept distinct.
- Temporal scope
- Settlement cycles checked 2026-08-27; EU transition planned for 2027-10-11.
Official sources
- Gestión de eventos corporativos (opens in a new window)
BME / Iberclear · ES
- Checked:
- Consultas frecuentes del inversor (opens in a new window)
BME · ES
- Checked:
- Derechos de suscripción preferente (opens in a new window)
Comisión Nacional del Mercado de Valores · ES
- Checked:
- Split