How to calculate management option pool size for various model test formats

I’ve been trying to figure out how to handle management options in an LBO, and am getting pretty confused because there seem to be different “shortcut” approaches taken by various models available online. Specifically I’m only asking about how to calculate the shares / size of the option pool, not the subsequent returns calculations.

In the BIWS private-private model, you’re given an option % but no balance sheet and no info about shares / strike price. So they take the post dilution option % and multiply it with the equity value from sources and uses to get the value of the options pool at strike. 

In the advanced WSPrep model (which is a take-private LBO), they multiply the post dilution option % by the purchase equity to get the value of the management option pool, and then divide by the post-close share price to get the number of management option shares.

In another model, (level 5 PF, also take-private model) you’re just given the management option share count outright, along with pricing information.

In one you’re multiplying the post-dilution option pool % by the Sources Equity, in the other you’re multiplying it by the Purchase Equity and then backing into share count by dividing by via the post-close share price, and elsewhere you’re just given the option count outright.

To the people who’ve gone through these test in actual interviews / work in PE, can you please share advice on how to best derive option pool sizes for these tests? Do interviewers normally tell you which method to follow? And generally, should options be based off sources equity / purchase equity?

Sorry for the long write up, and many thanks in advance!

4 Comments
 

When calculating the management option pool size in LBO models, the approach can vary depending on the specific assumptions and details provided in the test or model. Based on the most helpful WSO content, here’s a breakdown of the key methods and considerations:

1. Understanding the Different Approaches

  • BIWS Private-Private Model:

    • The post-dilution option percentage is multiplied by the equity value from the Sources and Uses to determine the value of the option pool at strike.
    • This method assumes no detailed share or strike price information is provided, focusing purely on the equity value.
  • Advanced WSPrep Model (Take-Private LBO):

    • The post-dilution option percentage is multiplied by the Purchase Equity to calculate the value of the management option pool.
    • To derive the number of shares, the value of the option pool is divided by the post-close share price.
    • This approach incorporates share price details to back into the share count.
  • Level 5 PF Model (Take-Private LBO):

    • The management option share count is provided outright, along with pricing information.
    • This simplifies the calculation since the share count and pricing are pre-determined.

2. Key Considerations for Interviews and Tests

  • Clarity of Instructions:
    • Interviewers may specify the method to use (e.g., whether to base calculations on Sources Equity or Purchase Equity). If not, clarify assumptions and proceed logically.
  • Sources Equity vs. Purchase Equity:

    • Sources Equity typically refers to the equity value post-financing, while Purchase Equity refers to the equity value at the time of acquisition.
    • The choice depends on the model’s structure and the specific instructions provided. For example:
      • If the focus is on the equity value at entry, use Purchase Equity.
      • If the focus is on the equity value post-financing, use Sources Equity.
  • Post-Dilution Option Percentage:

    • This percentage represents the management’s ownership after accounting for dilution from the option pool. It’s critical to apply this correctly to avoid over- or underestimating the pool size.
  • Strike Price and Share Price:

    • If strike price and share price details are provided, use them to calculate the number of shares.
    • If not, focus on the equity value and percentage ownership to estimate the pool size.

3. General Advice for Deriving Option Pool Sizes

  • Follow Instructions Closely:
    • If the test specifies a method (e.g., using Sources Equity or Purchase Equity), adhere to it. If unclear, state your assumptions explicitly.
  • Be Flexible:
    • Different models and tests may use different approaches. Familiarize yourself with multiple methods to adapt as needed.
  • Practice Common Scenarios:
    • Work through examples using each method to build confidence and speed in calculations.

4. Common Pitfalls to Avoid

  • Misinterpreting the Option Percentage:
    • Ensure you’re using the post-dilution percentage correctly, as it directly impacts the pool size.
  • Ignoring Share Price Details:
    • If share price information is provided, use it to calculate the share count accurately.
  • Overcomplicating the Calculation:
    • Stick to the simplest method that aligns with the test’s instructions and available data.

In summary, the best approach depends on the specific details and instructions provided in the test or model. If no method is specified, clearly state your assumptions and proceed logically. Practicing various scenarios will help you handle these calculations confidently in interviews or on the job.

Sources: Management Option Pools in LBO Models, Management Option Pool LBO Question, Option Pool Question, Creating own LBO assumptions, Private Equity Interview Questions - 13 Topics to Know

I'm an AI bot trained on the most helpful WSO content across 17+ years.
 
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The most correct way to do is to grant the option % based on the post-closing capital structure as that's the equity value that you'll carry forward and which serves as a reference for any sort of metric or calculation that would be related to the post-closing capital structure, including options. 

In practice, though, I could grant options to management based on any metric I choose, even global warming (who is going to stop me?). It is a contractual right, so we can negotiate and set the calculation however we want. See for example the option clause to management below.

Options. Executive will be granted options (the "Options") pursuant to the Company's Stock Option Plan (the "Plan") to purchase One Million Five Hundred Forty Eight Thousand Two Hundred Sixty Three (1,548,263) shares of Common Stock of the Company (the "Initial Option Shares"), which represents approximately two percent (2.0%) of the Company's Common Stock on a fully diluted basis as of the date of this Agreement. The exercise price per share of Executive's Initial Option will be equal to the fair market value per share of the Company's Common Stock as of the date that such Initial Option is granted by the Board. 

In this clause, you can see it is tied to post-closing, since the moment management signs to enter the management pool should coincide with the date the transaction is consummated and the capital structure is altered. Also, the strike is set based on the fair market value at the date of the agreement.

Usually, if I grant options on the purchase equity value, management ends up with a higher share. The strike price is also straightforward to understand. For example, if it says the options can be exercised when the shares reach X value or (increase by a certain % from the initial value), then you just check that the strike price > initial equity, calculate management's share and the number of options, minus the proceeds the company receives, and then grant the shares.

I never touched a public-to-private in case there are some more "special" aspects to consider and which might justify granting options from the purchase equity value (however, I suspect might be the case if management had existing options so you would be granting something above those or consider those as the floor i.e. the minimum they should also be able to get in the post-equity closing, so it's highly improbably in an LBO test to get so detailed/focused on this), so if anyone wants to correc this, feel free. However, if you justs want to grant a nominal amount of shares, then you can derive it either from the entry equity or the sources equity and just tweak the percentage, but the sources equity is the more accurate imo (can ask guidance also, might appreciate you exercising critical thinking).

p.s. have lots of free time today as you see

incentives trumph ethics
 

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