Estimating the Market Value of a Private Company

Summary

The note frames private-company market capitalization as the share price multiplied by outstanding shares, then focuses on estimating the share price when no public market quote exists. It outlines three broad approaches: book-based valuation, including discounted cash flow or revenue multiples; comparison with similar companies; and inferring value from prices private investors have actually accepted in transactions.

Book-based analysis resembles public-company valuation, but is difficult for early-stage businesses that are pre-revenue or cash-flow negative. Comparable-company estimates can be noisy, so observed private-market demand provides another reference point. The note gives no case study, financial inputs, or guidance on selecting comparable firms, and it does not explain how transaction terms or share classes affect price. These are broad valuation routes rather than a formula for reaching a precise market-cap estimate.

Key ideas

• Private-company market capitalization is calculated from share price and outstanding shares.
• Book-based approaches can use discounted cash flow or revenue multiples.
• Early-stage companies may be difficult to value with earnings or cash-flow methods.
• Comparable-company valuations provide a reference but can produce noisy estimates.
• Prices from private-market transactions offer another signal of investor demand.

Tags

# How do I value a private company's market cap?


# How do I value a private company's market cap?












How can I estimate a private company's market cap? What records do I need to consider and how would I go about it?

## Answer by elleciel (score 3)

https://quant.stackexchange.com/a/32446

Market cap is just the stock price times outstanding shares. The number of outstanding shares is decided by the issuer so the remaining question is how do you value a private company's stock price. There's 3 general classes of methods:

- Book-based (e.g. discounted cash flow, multiple of LTM revenue)

- Relative comps

- Private market demand

The first approach is not very different from how public companies are valued by analysts. However, this becomes a problem for early stage companies that may be cash flow negative or pre-revenue.

That's where relative valuation come in. This is where the company's market cap is valued based on other companies that are similar to it.

Relative comps provide very noisy estimates, so investors in private companies also price the companies based on what other investors have been willing to buy and sell the stock at.

Shown in full with attribution under the source's licence. Licence: CC BY-SA 4.0 (Stack Exchange)

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.