When a private company raises a primary round at a $50 billion valuation, that number becomes the gravitational center of every secondary conversation that follows. Sellers cite it as the floor. Platforms display it in bold. Buyers treat any discount to it as a bargain. None of that logic is wrong exactly, but it is incomplete — and the gap between 'not wrong' and 'rigorous' is where secondary buyers lose money.
Why the last-round price is a partial truth
A primary round price reflects what one set of investors agreed to pay for preferred shares on a specific date, with specific rights attached. Those rights typically include a liquidation preference — meaning preferred investors get their money back first, often at 1x or more, before common or secondary-purchased common shares see a dollar. A secondary buyer buying common shares, or a special purpose vehicle (SPV) backed by common shares, is buying a fundamentally different instrument than what the primary investor purchased.
The headline valuation also reflects conditions that may have already changed: interest rate environment, sector sentiment, the company's own revenue trajectory. A round that closed eighteen months ago was priced under different assumptions. If revenue has grown 80 percent since then but the category has de-rated — as happened broadly in AI infrastructure in late 2025 — the correct secondary price sits at a point that neither the old round price nor naive multiples capture on their own.
Building a revenue-based anchor
A revenue multiple approach starts with the company's current annualized revenue run rate, applies a comparable public-market or late-stage-private multiple, and works backward to an implied equity value. That implied equity value is then divided by fully diluted share count to get an implied share price. This is the same methodology that growth equity investors use at the primary level — you are simply applying it to secondary market conditions.
The mechanics look simple. The judgment calls are where rigorous buyers separate themselves.
Once you have an implied share price from the revenue approach, compare it to the last-round price. If the revenue-implied price is meaningfully below the last round, you are not buying at a discount — you are buying at a value that the primary market has not yet formally reset. If the revenue-implied price is above, the last-round price may represent a genuine floor and the secondary market is lagging.
Common mistakes in the revenue multiple approach
The most frequent error is using growth-rate-adjusted multiples without applying any illiquidity discount. Public market multiples assume you can exit tomorrow at the market price. Private secondary investments lock you in until a tender, a direct secondary buyer, or a liquidity event. That illiquidity deserves a discount, and most practitioners set it at 20–40 percent depending on the company's expected time to liquidity.
The second common mistake is ignoring gross margin. A $2 billion revenue company at 30 percent gross margin deserves a much lower multiple than one at 75 percent. In the AI layer specifically — where some companies resell compute-intensive inference at thin margins — headline revenue numbers can mask a fundamentally lower-quality revenue base.
The third mistake is treating a single point estimate as a price rather than as the center of a range. Secondary buyers who develop a bear / base / bull scenario — varying revenue growth and exit multiple — end up with a zone of reasonable prices rather than a single anchor. That zone tells you which secondary offers represent genuine value and which are priced for perfection.
- Bear case: revenue misses expectations, category multiple compresses, liquidation stack absorbs more proceeds. Implies the lowest per-share value in your range.
- Base case: revenue in line with leaked or analyst estimates, current market multiple with a standard illiquidity discount applied.
- Bull case: revenue beats and category re-rates upward, company reaches liquidity faster than expected, liquidation stack clears entirely. Implies the highest per-share value in your range.
How to read secondary market prices against your model
Once you have a range, secondary market listings give you something concrete to evaluate. A listing price sitting below your bear case is either a genuine opportunity or a signal that the seller knows something you do not — either way, it warrants a careful look at what is driving the discount. A listing price above your bull case means you are being asked to pay for outcomes that require everything to go right.
The most interesting zone is the middle: listings priced within your base case range. These are the positions where secondary buyers can make a considered decision rather than a binary bet. They require you to have an actual view on the company's trajectory, not just a sense of whether the price feels cheap relative to the last round.
Putting it together before you indicate interest
Before placing an indication on any secondary listing, run both anchors: the last-round price and your revenue-multiple-derived range. Note where the listing price sits relative to each. Document the liquidation preference stack. Estimate the fully diluted share count as best you can from available data. Note the gross margin profile if knowable.
This discipline takes an hour per name. It is the difference between secondary investing and secondary speculation. The market rewards the buyers who do the work, because the majority of participants lean on round price alone and systematically misprice instruments with different economic rights.
Limen Markets lists confirmed seller supply across 28 private issuers with hourly price refreshes, so the raw material for this analysis is available in one place. The valuation judgment is yours to make — and the quality of that judgment is the primary source of edge in this market. Browse current listings on the marketplace to see where today's secondary prices sit relative to the last primary round for each name.