What it means
When a company issues stock options to employees or investors, it creates the potential for more shares to exist in the future. If everyone exercised their options at once, the existing ownership slice of current shareholders would shrink, which is known as dilution.
To measure this fairly on financial statements, accountants use the treasury stock method. This method follows a specific logic.
First, it assumes all in-the-money options are exercised, bringing fresh cash into the company. Second, it assumes the company takes that exact cash and buys back its own shares in the open market at the current average share price.
The net increase in the total share count is simply the difference between the newly issued option shares and the shares bought back. Why does this matter?
Investors need to see an accurate picture of earnings per share, especially if a company has many unexercised options or warrants. By factoring in the buybacks, the treasury stock method prevents companies from overstating how badly their ownership base might be diluted.
It is a standard rule required by accounting regulators to keep financial reporting honest and transparent.
In practice
Real-world examples.
Example
TechStart grants options for 10,000 shares at ten pounds each. The current market share price is twenty pounds. Under this method, the company receives 100,000 pounds and buys back 5,000 shares, resulting in a net addition of 5,000 shares.
Example
BuildCo has warrants outstanding for 20,000 shares at fifteen pounds. The market price is thirty pounds. The company collects 300,000 pounds from the exercise and repurchases 10,000 shares from the open market, adding a net 10,000 shares.
Example
RetailCorp issues options for 50,000 shares at five pounds when shares trade at ten pounds. The 250,000 pounds collected buys back 25,000 shares, leaving a net dilution of 25,000 shares added to the weighted average share count.
Think of it
“Imagine you run a bakery and hand out coupons that let friends buy future cakes at a discount. If they redeem them, you get some cash, but you use that exact money to buy back ready-made cakes from the shelf to fulfill the order, limiting how many extra cakes you actually have to bake from scratch.
Formula
Calculation
Net Dilutive Shares = New Shares Issued from Options - Shares Purchased with Proceeds
Example:
1. Options exercised = 1,000 shares at 10 pounds strike price (Proceeds = 10,000 pounds)
2. Market price = 20 pounds
3. Shares repurchased with proceeds = 10,000 pounds / 20 pounds = 500 shares
4. Net Dilutive Shares = 1,000 - 500 = 500 shares added to the share count.Case study
Seen in the real world.
BrightSoftware, a growing tech firm, wanted to measure its true share dilution for its annual financial report. The company had 100,000 stock options outstanding with an exercise price of 10 pounds each. The average market price of BrightSoftware shares during the year was 25 pounds.
Following the treasury stock method, the finance team calculated that if all employees exercised their options, the company would receive 1,000,000 pounds in cash. BrightSoftware would then take that 1,000,000 pounds and buy back its own shares on the open market. At 25 pounds per share, the company could repurchase 40,000 shares.
To find the net impact on the share count, the team subtracted the 40,000 repurchased shares from the 100,000 newly issued option shares, leaving a net dilution of 60,000 shares. This figure was then added to the weighted average number of common shares when calculating diluted earnings per share. This exercise ensured that investors had a clear, realistic view of their potential ownership stake without being misled by the gross number of options granted.
Watch out
Common mistakes.
- Forgetting to check if options are actually in the money before including them in the calculation.
- Using the year-end share price instead of the average market price over the reporting period.
- Failing to account for tax benefits that may alter the actual proceeds received by the company.
Questions
People also ask.
What does in-the-money mean in this context?
It means the current market price of the stock is higher than the exercise price of the option, making it profitable for the holder to buy.
Does this method mean the company actually has to buy back shares?
No, it is a theoretical calculation used strictly for financial reporting to show potential dilution, not an actual corporate share buyback program.
Why is this calculation necessary for earnings per share?
It prevents companies from making their per-share profit look artificially high by ignoring the future shares that options and warrants will create.
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