Startup valuation after price moves: the closed round is the mark
A private stake is marked by the next priced event that actually closes, not by the valuation a company is trying to raise at.
You see a new OpenAI valuation on your screen: $1.25 trillion, the level in play on October 22 after a $150 billion decline, even as OpenAI continued to target roughly $30 billion. Founders announce the number they want; employees hear it as the new value of their shares. That is the trap. Money paid at a price sets a mark.
The target is a number, not a mark
OpenAI cut its fundraising target by $10 billion to roughly $20 billion and reduced the valuation it sought from $1.4 trillion to $1.25 trillion. At that valuation, OpenAI had locked in roughly $11 billion of committed capital, a figure below half of its initial $30 billion target.
The initial close is expected to raise under $20 billion because some investors lowered their planned allocations. Founders Fund, Coatue, Sequoia Capital, and Andreessen Horowitz are expected to take part, and a UAE investor group that includes MGX is expected to be the biggest participant, with an option for OpenAI to lease newly built computing capacity in the region. A first close is a partial closing: enough money has come in to let the company proceed, but the full round may still be open.
Pre-money and post-money are two different marks
Post-money means the company’s value after the new cash is added; pre-money means the value before that cash, so it is lower by the amount raised. If the new OpenAI valuation is post-money, use it as the company’s value after the new cash; if it is pre-money, add the round size to get the post-money value. To value your stake, multiply your ownership percentage after the round by the post-money number. If you only know your percentage before the round, adjust for the smaller percentage the new cash gives you. If you do not know the round size, do not treat the pre-money number as post-money.
The last closed round gives you a clearer number. In March, OpenAI raised $122 billion at an $852 billion post-money valuation, and Amazon committed up to $50 billion. That closed post-money number is a mark; the new OpenAI discussion is not yet a mark.
Private markets can keep an old mark in place
Private markets do not print a daily price for every company. A mark can stay in place until a new round, a secondary sale, or an exit sets a new one. Secondary sales move existing shares, not new money to the company. They can set a price for those shares, but they do not automatically reset the whole company. Full rounds are different because new cash changes the company’s value.
Depressed public broker multiples, meaning lower public price ratios, would likely trigger a repricing, or new pricing, of private insurance distribution valuations. Recent valuation declines could force insurance distribution companies to rethink IPO plans.
Private equity firms' portfolio company exits stayed difficult while IPO candidates accumulated as public equity markets recovered from April 2025 tariff volatility. Those firms paid more than public market prices, which made it harder to exit at valuations that would support acceptable returns. Private credit had more than $2 trillion in assets under management and had become a significant force in global capital markets. 28% of limited partners, the investors in private funds, said fund investment performance had missed their expectations.
Run the mark test before you value your stake
- Find the target: the valuation the company is trying to raise at.
- Check commitments: how much money is pledged, and whether the close came in below target.
- Wait for the close: only the final priced event sets the mark.
- Ask pre-money or post-money: convert the number before you value your stake.
