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Conversion Price

The conversion price is the predetermined cost at which a special type of corporate debt or preferred share can be turned into ordinary company shares. It acts as an exchange rate set when the investment agreement is signed.

This figure directly determines how many equity shares the investor will eventually receive.

What it means

When a growing company needs funding without immediately giving away equity, it often issues convertible notes or convertible bonds. These financial instruments start as debt, paying regular interest to the investor.

However, they include a built-in option allowing the holder to swap that debt for company shares later, usually during a future funding round or when specific milestones are achieved. The conversion price is crucial because it dictates the exchange value.

If the conversion price is set at two pounds per share, a ten-thousand-pound investment can be converted into five thousand shares. A lower conversion price benefits the investor by granting them more shares for their money, while a higher conversion price protects existing owners from excessive dilution.

Founders must pay close attention to this metric during fundraising negotiations. Setting the conversion price too low means giving away a much larger slice of the business than anticipated when conversion time arrives.

Conversely, setting it too high might discourage investors from taking a chance on the business. In practice, companies often apply a discount to the conversion price during a future funding round as a reward for early investors who took on initial risks.

This ensures that early backers are compensated for believing in the company before its valuation was proven in the open market.

In practice

Real-world examples.

1

Example

TechStart Ltd issues a convertible note worth fifty thousand pounds with a conversion price of two pounds per share. Later, the company raises funds at three pounds per share, rewarding the early investor.

2

Example

GreenCafe raises one hundred thousand pounds via convertible debt. The agreement fixes the conversion price at one pound fifty per share, giving the lender a clear path to equity ownership.

3

Example

A manufacturing firm offers bonds with a fixed conversion price of ten pounds. If the share price climbs to fifteen pounds, bondholders will likely convert to capture immediate paper gains.

Think of it

Imagine buying a voucher for a bakery that lets you swap a ten-pound gift card for loaves of bread at a locked-in price of one pound each, no matter how much bread prices rise later.

Formula

Calculation

Conversion Price = Par Value of the Bond / Conversion Ratio Example: If a corporate bond has a par value of one thousand pounds and the conversion ratio is two hundred shares, the conversion price is five pounds per share (1,000 / 200 = 5).

Case study

Seen in the real world.

BrightApp, a mobile software start-up, secured one hundred and fifty thousand pounds in early seed funding through a convertible note. The agreement specified a conversion price of one pound twenty-five per share. Eighteen months later, BrightApp completed a major Series A funding round, valuing its ordinary shares at two pounds fifty each. Because the early noteholders held a contractual conversion price significantly lower than the current share price, they exercised their right to convert their debt into equity. The original one hundred and fifty thousand pounds successfully converted into one hundred and twenty thousand ordinary shares, rather than the sixty thousand shares they would have received at the current market valuation. This reward reflected the early risk the investors took when the company had no revenue. The founders retained control of the business, though they experienced a planned dilution of their overall ownership percentage.

Watch out

Common mistakes.

  • Confusing the conversion price with the current market price of the company shares.
  • Ignoring how future share discounts interact with the base conversion price during a funding round.
  • Failing to calculate the total dilution impact on existing shareholders before signing the note.

Questions

People also ask.

What happens to the conversion price if the company splits its stock?

Conversion prices typically include anti-dilution clauses that automatically adjust downward if the company executes a stock split, ensuring the investor is not unfairly penalised.

Is the conversion price mandatory?

No, conversion is usually an option held by the investor, not an obligation. If the share price drops below the conversion price, the investor may prefer to remain a creditor and get their money back.

Who sets the initial conversion price?

The founders and the investors negotiate the conversion price during the drafting of the convertible debt or preferred stock agreement, often based on early company valuations.

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Last updated · September 9, 2026
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