Pre-Money and Post-Money Valuation

Formula

What the headline numbers do and do not say

Pre-money and post-money valuations are pricing conventions for a single round, not measures of what each share is worth. The post-money valuation multiplies the price of the newest, most senior preferred stock by every share, including common and junior preferred that lack its liquidation preference and other rights, so it tends to overstate the value of those junior classes and can overstate the value of the company's equity as a whole. Valuation guidance treats the price of a recent round as a calibration point, not automatically as fair value. Fair value for financial reporting is determined separately, usually by allocating equity value across share classes (see option pricing method) and calibrating to the round price (see price of recent investment).

Gornall and Strebulaev (NBER Working Paper 23895, 2017; later published in the Journal of Financial Economics) model this effect for 135 US unicorns. In the working paper, reported post-money valuations averaged 50% above fair value, 15 companies were more than 100% above, and 65 of the 135 would lose unicorn status after adjusting for investor protections.

Price per share is the economic term

Two rounds with the same headline pre-money can have different prices per share, as the second example shows, because the pre-money share count is defined differently. The share count can be enlarged by an option pool increase, by converting SAFEs and notes, or by warrants. For comparing rounds, and for deciding whether a round is a down round, the price per share is the right measure.

Secondary sales and tranches

Post-money equals pre-money plus investment only for newly issued (primary) shares. If part of a round buys existing shares from founders or early investors (a secondary component), that money does not enter the company and does not add to the post-money valuation, although it changes who owns what. Tranched rounds, in which investors commit to fund later instalments on milestones, are usually quoted at the full post-money but issue shares only as each tranche closes.

Post-money in SAFEs

The "post-money valuation cap" in a post-money SAFE uses its own definition: the capitalisation after all SAFEs convert but before the priced round's new money. It is therefore not the same number as the post-money valuation of the round in which the SAFE converts.

Worked examples

Examples are illustrative; figures are not market data.

Not the same as

• Enterprise Value (EV): Enterprise value adds net debt to equity value and values the whole business; pre- and post-money valuations price a company's equity in a financing round.
• Fair Value: Fair value for reporting is the price of a specific security between market participants; a post-money valuation is the newest round price applied to all shares.
• Price of Recent Investment: The price of recent investment is a valuation technique that calibrates fair value to a recent round; post-money is the round's arithmetic, not a fair value conclusion.

Common mistakes

• Comparing pre-money valuations without checking what each pre-money share count includes.
• Treating post-money valuation as the value of every share class.
• Adding secondary proceeds to the post-money valuation.
• Using a SAFE's post-money cap as if it were the post-money valuation of the later priced round.

Questions

Sources

1. International Private Equity and Venture Capital Valuation Guidelines (2025 edition). IPEV Board, IPEV, Published 11 December 2025; in effect for quarterly reporting periods beginning on or after 1 April 2026; early adoption encouraged. Status: Current; supersedes the December 2022 edition (checked 2026-10-01). Sec. I 3.10 Calibrating to the Price of a Recent Investment, p. 38 — supports: A recent round price is not automatically fair value, is used to calibrate valuation inputs, and is not applied automatically to other share classes
2. ASU 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. Financial Accounting Standards Board, May 2011. Status: in force (codified in ASC 820) (checked 2026-10-01). ASC 820-10-35-2 — supports: Definition of fair value as an exit price between market participants
3. Y Combinator SAFE (post-money) documents and SAFE User Guide. Y Combinator, Post-money SAFE introduced 2018. Status: Current (checked 2026-10-01). Post-money SAFE definitions (Post-Money Valuation Cap, Company Capitalization) — supports: Post-money cap measured after SAFE conversion but before the priced round's new money
4. Squaring Venture Capital Valuations with Reality (NBER Working Paper 23895). William Gornall; Ilya A. Strebulaev, National Bureau of Economic Research, NBER WP 23895, October 2017; published version in Journal of Financial Economics per the NBER page. Status: published (checked 2026-10-01). Abstract — supports: Post-money valuations overstate fair value for unicorns with senior preferred terms

• Dilution
• Down Round
• Simple Agreement for Future Equity (SAFE)
• Priced Round

• Cap Table (Capitalization Table)