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How to Calculate TERP

Updated March 23, 2017

During a rights issue, a company raises capital by offering new shares of its stock to its shareholders. In theory, the shareholders will buy all the new offerings, and this trade will change the price of the company's shares. Afterward, shares will cost more than the rights issue offerings, but they won't be worth as much as the company's shares did before the rights issue. The theoretical ex-rights price (TERP) estimates the shares' value after the trade.

Determine the portion of the company's final shares that exist pre-offering. For instance, if a company moves for a 1-for-4 rights issue: 4 ÷ (1 + 4) = 0.8.

Subtract this answer from 1: 1 - 0.8 = 0.2. This is the portion of the total shares that the issue represents.

Multiply the shares' portion by the share price before the rights issue. For instance, if the shares sell at a price of £1.30: 0.8 --- £1.30 = £1.0.

Calculate the price of the newly issued shares. For example, if the company offers them at a 10 per cent discount: £1.40 --- [(100 - 10) ÷ 100] = £1.20

Multiply this price by the decimal value from Step 2: £1.20 --- 0.2 = 25

Add together the prices from Steps 3 and 5: £1.0 + 25 = £1.30. This is the theoretical ex-rights price.

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About the Author

Ryan Menezes is a professional writer and blogger. He has a Bachelor of Science in journalism from Boston University and has written for the American Civil Liberties Union, the marketing firm InSegment and the project management service Assembla. He is also a member of Mensa and the American Parliamentary Debate Association.