Ex-Rights Date

Stocks
intermediate
11 min read
Updated Feb 20, 2026

What Is the Ex-Rights Date?

The Ex-Rights Date is the cut-off date on which a stock begins trading without the entitlement to participate in a rights offering. Shareholders who purchase the stock on or after this date will not receive the "rights" to buy additional shares at a discounted price; those rights remain with the seller or have expired.

The Ex-Rights Date is a critical deadline for shareholders involved in a rights issue. A rights issue is a corporate action where a company raises capital by offering existing shareholders the chance to buy new shares, usually at a discount to the current market price. These "rights" are essentially short-term call options that are distributed for free to current holders. To manage this process, the exchange sets an "ex-rights date." This date functions exactly like an ex-dividend date. If you buy shares *before* the ex-rights date, you are buying them "cum-rights"—meaning you get the shares plus the rights to buy more shares at the discount. If you buy shares *on or after* the ex-rights date, you are buying just the shares; the rights stay with the previous owner (the seller). Because the rights have tangible monetary value (since they allow you to buy stock at a discount), the stock price usually drops on the ex-rights date. The magnitude of this drop depends on how deep the discount is and how many new shares are being offered (the dilution factor). Understanding this date is crucial because failing to act or sell before the ex-date can result in significant value loss through dilution.

Key Takeaways

  • The Ex-Rights Date marks the separation of the stock from the rights attached to it.
  • A "rights offering" allows existing shareholders to buy new shares at a discount (subscription price) to the current market price.
  • Before the ex-rights date, the stock trades "cum-rights" (with rights). The buyer gets the rights.
  • On and after the ex-rights date, the stock trades "ex-rights" (without rights). The seller keeps or exercises the rights.
  • The stock price typically drops on the ex-rights date by the theoretical value of the rights.
  • Investors must decide before this date whether to exercise their rights, sell them (if renounceable), or let them expire worthless.

How the Ex-Rights Date Works

The timeline for a rights offering typically involves three key dates that dictate who gets the rights and when: 1. Declaration Date: The company announces the rights issue, specifying the ratio (e.g., "1 for 4 rights issue") and the subscription price (e.g., $10 per share when the stock is $15). This announcement sets the market in motion. 2. Record Date: The date the company checks its books to see who the shareholders are. Due to the T+2 (or sometimes T+1) settlement cycle, the ex-rights date is usually one business day *before* the record date. 3. Ex-Rights Date: The first day the stock trades without the rights attached. On the ex-rights date, the exchange will adjust the stock's opening price to reflect the "Theoretical Ex-Rights Price" (TERP). This is a weighted average of the old shares (at the cum-rights price) and the new shares (at the subscription price). While market forces ultimately determine the trading price, the TERP provides a baseline for fair value. If the stock trades significantly above or below TERP, arbitrageurs will step in to close the gap.

Real-World Example: Calculating TERP

Company XYZ is trading at $20. It announces a "1-for-4" rights issue at a subscription price of $15. This means for every 4 shares you own, you can buy 1 new share for $15.

1Step 1: Calculate the value of the old position. You own 4 shares at $20 = $80.
2Step 2: Calculate the cost of the new share. You exercise 1 right to buy 1 share at $15 = $15.
3Step 3: Calculate the total value. You now have 5 shares (4 old + 1 new). Total value = $80 + $15 = $95.
4Step 4: Calculate TERP. $95 / 5 shares = $19.
5Step 5: Determine the value of the right. The stock drops from $20 (cum-rights) to $19 (ex-rights). The value of the right is therefore $20 - $19 = $1 per share.
Result: On the ex-rights date, the stock should theoretically open around $19. The $1 drop represents the value of the right that has been detached.

Choices for Shareholders

Before the ex-rights date arrives, shareholders must decide what to do:

  • Exercise the Rights: Pay the subscription price and buy the new shares. This maintains your percentage ownership in the company (no dilution).
  • Sell the Rights: If the rights are "renounceable" (tradeable), you can sell them on the market to someone else. You get cash, but your ownership percentage in the company will be diluted.
  • Do Nothing: Let the rights expire. This is the worst option, as you lose the value of the rights and suffer dilution. (Some brokers will automatically sell rights for you if you do nothing, but not all do.)
  • Oversubscribe: In some cases, you can apply for *additional* shares left over by other shareholders who did not exercise their rights.

Important Considerations for Traders

The ex-rights date creates volatility. Arbitrageurs often step in, trying to profit from discrepancies between the price of the rights, the price of the stock, and the subscription price. If the rights are trading for less than their intrinsic value ($1 in our example), traders will buy the rights and short the stock to lock in a risk-free profit. For long-term investors, the ex-rights date is a reminder to act. Ignoring a rights issue leads to financial loss (dilution without compensation). It is crucial to read the prospectus sent by the company or your broker to understand the deadlines and procedures for exercising.

Advantages of Ex-Rights Trading

1. Clarity: It provides a clear separation of value between the stock and the rights. 2. Liquidity: By detaching the rights, a secondary market is created where rights can be traded freely, providing liquidity to shareholders who don't want to invest more cash. 3. Capital Raising: It allows companies to raise money from their existing loyal shareholder base without the high fees of a secondary public offering.

Disadvantages of Ex-Rights Trading

1. Dilution: The stock price drops mechanically. If you don't act, your investment value decreases. 2. Complexity: Shareholders must actively manage their position (exercise or sell), which requires understanding the math and timing. 3. Tax Consequences: Selling rights generates a capital gain, which is a taxable event. 4. Market Pressure: Heavy selling of rights can depress the stock price further, potentially below the theoretical ex-rights price.

FAQs

TERP stands for Theoretical Ex-Rights Price. It is the calculated fair value of a stock immediately after the rights are detached. It accounts for the dilution caused by issuing new, cheaper shares. While the actual market price might differ due to supply and demand, TERP is the mathematical baseline.

The price drops because the company's equity is being diluted. By issuing new shares at a discount, the average value of each share decreases. The drop also reflects the fact that the right to buy those discounted shares is no longer attached to the stock being sold.

If you sell "cum-rights" (before the ex-date), you sell both the stock and the rights. The buyer will receive the rights to subscribe to the new shares. You walk away with the cash from the sale but no further claim on the company or the rights offering.

Most are. These are called "renounceable rights." They have their own ticker symbol and trade on the exchange for a few weeks. "Non-renounceable rights" cannot be sold; you must either exercise them or let them expire worthless.

It depends. If a company raises cash to fund growth (e.g., an acquisition), it can be positive. If a company raises cash to pay down debt because it is in financial trouble, it is often viewed negatively. However, for existing shareholders, the ability to buy stock at a discount is generally a benefit *if* they have the cash to do so.

The Bottom Line

Investors looking to protect their equity value must be aware of the Ex-Rights Date. The Ex-Rights Date is the moment a stock begins trading without the value of an upcoming rights offering attached. Through a mechanical downward adjustment in price, the market accounts for the dilution of the new shares. On the other hand, shareholders who fail to act before this date face uncompensated dilution of their holdings. For active traders, this date marks a period of heightened volatility and arbitrage opportunity, but for long-term holders, it is a critical deadline for decision-making.

At a Glance

Difficultyintermediate
Reading Time11 min
CategoryStocks

Key Takeaways

  • The Ex-Rights Date marks the separation of the stock from the rights attached to it.
  • A "rights offering" allows existing shareholders to buy new shares at a discount (subscription price) to the current market price.
  • Before the ex-rights date, the stock trades "cum-rights" (with rights). The buyer gets the rights.
  • On and after the ex-rights date, the stock trades "ex-rights" (without rights). The seller keeps or exercises the rights.