What it means
A rights issue offers qualifying shareholders the opportunity to subscribe for additional shares under stated terms, with the subscription price and number of new shares depending on the offering. Participation usually requires paying additional money rather than receiving new shares free.
During the cum-rights period the ordinary shares carry access to that opportunity, and after the changeover to ex-rights a new purchase does not include the same entitlement. The issuer's timetable and market arrangements establish the relevant dates.
The last cum-rights trading day and the record date are not interchangeable labels, because settlement determines when a purchase is reflected in ownership records while exchange procedures govern entitlement allocation. Check the actual timetable rather than assuming a trade on the record date qualifies.
A right can have economic value when its subscription price is below the share's market value, but the apparent discount is not free money. Issuing more shares changes the number of claims on the business and brings additional subscription cash into it.
Theoretical ex-rights price estimates a blended share value after the issue, assuming full subscription and unchanged other conditions, and an exchange may use an adjusted previous closing price to help interpret the ex-rights movement, which is a reference calculation and not a promised execution price. HKEX's published rights-issue circular illustrates this distinction using the last cum-rights closing price, subscription price and entitlement ratio, and its calculation adjusts the previous-close reference for an ex-rights date.
A company-specific example does not establish identical procedures for every market. A shareholder who subscribes in proportion to existing ownership can maintain that ownership percentage in a fully subscribed issue, while a shareholder who does nothing may be diluted.
Whether rights can be sold instead depends on their transferability and trading arrangements. Renounceable rights can generally be transferred under the offering terms, while non-renounceable rights cannot simply be sold on a market, and the possibility of selling a right does not guarantee a buyer at a particular price.
Expiry and transaction costs matter. Cum-rights shares should be compared with other prices on a consistent basis, since a chart crossing an ex-rights date can show a mechanical adjustment as well as genuine market movement, and calling the entire price change an investment loss can misstate what happened.
Buying qualifying shares creates an entitlement, not an obligation to subscribe, so the investor still decides whether to pay, transfer eligible rights or let them lapse, with broker cutoffs possibly earlier than the issuer's final deadline. For a non-finance shareholder, identify the ratio, payment required, eligibility dates and available choices, and read the offer documents before judging the issue by its discount alone, remembering the company's reason for raising money and the value of the enlarged business.
In practice
Real-world examples.
Example
A fictional company offers one new share for every four held. A qualifying buyer during the cum-rights period receives the subscription entitlement, subject to settlement and the offering timetable.
Example
An investor purchases shares after the ex-rights changeover. The ordinary shares do not carry the earlier entitlement even though the rights subscription window may still be open.
Example
A holder cannot afford to subscribe for new shares. If the rights are transferable, selling them may preserve some value; letting them expire without action can give up that value.
Formula
Calculation
For an illustrative one-for-four issue, theoretical ex-rights price = (4 x cum-rights price + subscription price) / 5. If the old share price is $10 and the new-share price is $5, the result is $9. Four old shares plus $5 of subscription cash have a combined theoretical value of $45 across five shares. The theoretical entitlement value per old share is $10 - $9 = $1, before costs and market movements.Case study
Seen in the real world.
Fictional case: A small investor owns 400 shares in a company offering one new share for every four at $5. She can subscribe for 100 new shares by paying $500. Her broker confirms eligibility and provides an instruction deadline earlier than the issuer's final cutoff.
She compares subscription with selling transferable rights and reviews the company's funding plan. When the shares go ex-rights, she does not treat the reference-price adjustment as a standalone economic loss because she also holds the allocated rights. Actual prices may still differ from the theoretical calculation.
Watch out
Common mistakes.
- Assuming a purchase on the record date necessarily carries rights without checking settlement rules.
- Treating the subscription discount as guaranteed profit without considering dilution and market prices.
- Ignoring instruction deadlines or assuming every right is transferable.
Questions
People also ask.
Does cum rights mean the new shares are free?
No. It means the subscription entitlement is attached; exercising it generally requires payment.
Is ex-rights the same as rights expiry?
No. Shares can trade without the entitlement while an allocated right remains exercisable.
Must I subscribe?
Review the offer's choices; transferable rights may be sold, while unused rights can lapse.
From the founder's library
Take it further with the book.
Build your financial confidence beyond this definition. Shihan's full-length guide, Accounting Fundamentals, takes the same plain-English approach and turns it into a complete, practical playbook for non-finance managers, business owners and students - with chapter-end quiz answers and presentation slides included.
25% off with code MMHQ25, applied at checkout. Priced in USD - checkout may show the equivalent in your local currency.
View the book and save 25%