How to Do Price Discovery in Private Markets: Order Books vs. Handshake Deals

TL;DR:

• Relying on a single broker or a bilateral “handshake” relationship for secondary deals obscures true market pricing, allowing middlemen to pocket massive bid-ask spreads.
• Transitioning from bilateral trades to order book dynamics compresses secondary bid-ask spreads. Data from Campbell Lutyens shows that while average LP-led discounts hover at 13.3%, highly competitive, single-asset auctions compress that discount to just 2.9%.
• Institutional buyers deploying $50M+ checks require deal exclusivity and standardized, wall-crossed data rooms. If a deal is shopped via emailing PDFs, apex buyers simply pass.
• With PitchBook data revealing that the 2021 VC vintage is hitting century-low realization rates (0.1x DPI at year five), GPs can no longer hide behind paper markups. To satisfy their GP fiduciary duty, they must expose assets to live bids.

Historically, private secondary trades cleared almost entirely in the dark. An LP looking to exit a position would rely on bilateral secondary trades via a “handshake” relationship with a legacy broker.

From a market structure perspective, relying on a single counterparty for price discovery is a vulnerability. In a bilateral negotiation, there is zero transparency — buyers and sellers operate with a single data point. A legacy broker can quote a price disconnected from the market, clear the trade, and quietly pocket the spread.

To set fair market value, fiduciaries must break the bilateral silo and expose the asset to a wider marketplace that captures bids across segments in multiple jurisdictions— high-net-worth syndicates, market makers, and institutional funds, among others.

Compressing the Spread with Competitive Tension

When you shift from a bilateral handshake to order book dynamics, pricing behavior fundamentally changes.

In a healthy, competitive order book, secondary bid-ask spreads often mechanically compress to approximately 5%. If a spread breaches 10%, it serves as a red flag indicating information asymmetry between the buyer and the seller.

Competitive tension resolves this asymmetry. The data proves it. According to the Campbell Lutyens 1H 2026 Secondary Market Overview, the average discount for broad LP-led portfolios currently sits at 13.3%.

However, when assets are subjected to intense buyer competition — such as Single-Asset Continuation Vehicles (SACVs) — that discount compresses to just 2.9%, with 69% of deals pricing at or above par. That is the mathematical difference between opaque brokering and competitive market tension.

Anonymized marketplaces also eliminate the “access tax.” In highly restricted cap tables, legacy brokers frequently leverage their exclusive access to an asset to tack on a 10% fee markup. They place the asset inside their own Special Purpose Vehicle (SPV) and sell the access, rather than the asset’s pure economic value. A centralized order book strips away this intermediary tax, allowing buyers and sellers to work with the raw market-clearing price.

Testing the Waters Without Signaling Distress

Many GPs and founders hesitate to price-check the secondary market, fearing that broadcasting a block of shares might signal distress.

Yet, checking the market — and anonymously, at that — is a baseline portfolio management strategy. GPs use anonymized pricing dashboards all the time to compare live bids against competing offers, or to stress-test their own internal Net Asset Value (NAV) markups.

If a GP’s internal valuation is drastically different from the live order book, it means the portfolio needs a deeper triage.

Often, the danger stems from relying on the “last round” valuation. In private markets, the last primary funding round is often treated as the absolute reference price. But secondary markets move constantly. According to Campbell Lutyens, venture secondary discounts widened to 32% in the first half of 2026 as software concentration collided with AI disruption. A company’s clearing price dipping 15% or 30% since its last primary raise is no rarity. To maintain accuracy and achieve true private market price discovery, GPs require monthly pricing updates drawn from verified market bids via an anonymized secondary marketplace.

Extracting Private Data From the Black Box

Institutional buyers require raw data for their financial models. Private companies, however, hate sharing it. Founders and GPs are incentivized to protect their valuations from downward pressure. If a company is not actively executing a primary fundraise — which is typically the only time formal financial statements are circulated — its true operational health becomes a black box.

This creates valuation blind spots in the secondary market. A high-growth Web3 infrastructure company, for example, might have legacy brokers quoting valuations ranging anywhere from $1 billion to $3 billion, because the market lacks an operational anchor. Between funding rounds, the truth is obscured.

To bridge this information asymmetry, agency matchmakers learn to extract data from the periphery of the cap table. Human nature and financial incentives dictate that information eventually flows from several types of stakeholders:

Existing Investors and Advisors

While a company may refuse to open its data room, existing venture capitalists, advisors, and market makers must continuously mark their own books. By querying multiple LPs and funds already sitting on the cap table, an agency matchmaker can cross-reference their pricing indications to set a reliable valuation corridor.

Post-NDA Employees

Early employees holding vested equity are highly motivated sellers. When these employees exit a company, their non-disclosure agreements (NDAs) typically carry sunset clauses that expire after six to twelve months. Once those NDAs legally expire, these former insiders become fully compliant, invaluable sources of recent operating metrics and cap-table realities.

This intelligence gathering lets an agency matchmaker piece together the financial picture required for institutional underwriting.

But acquiring the data is only half the battle; how that data is distributed dictates the caliber of the buyer.

Keeping Exclusivity Premium with Data Rooms

The traditional initial public offering (IPO) is no longer a reliable exit strategy. PitchBook’s Q2 2026 US VC Fundraising and Returns Report highlights that fewer than 50 VC-backed companies have gone public in any year since 2022, despite a massive backlog of over 950 unicorns in the US alone. The companies that do reach an exit are taking longer to get there: PitchBook puts the median time to exit for a VC-backed company at 5.2 years and the average at 6.2, with unicorns waiting longer still.

Consequently, secondary markets are now the primary liquidity channel. But as secondary volume scales, executing in these markets requires finesse, not casual networking.

There is an operational difference between emailing a PDF and using a standardized data room. When a legacy broker emails a PDF deck across the market, the asset loses its exclusivity. It becomes “surrounded.”

When apex institutional buyers writing checks of $50-200 million see a deal that has been actively shopped through unsecured channels, they usually pass, assuming the asset is either overpriced or undesirable.

Conversely, when a regulated agency matchmaker establishes a secure data room and requires buyers to formally “wall-cross” (agreeing to strict legal confidentiality), the threshold of diligence elevates. This security attracts top-tier institutional capital, providing the exact exclusivity required to attract massive secondary blocks.

The DPI Drought and the New Fiduciary Mandate

As the secondary market matures, the standard for fiduciary duty is shifting.

GPs are currently navigating a severe realization drought. The math is unforgiving: according to PitchBook’s Q2 2026 data, the 2021 VC vintage has produced the lowest five-year realization multiple this century, sitting at an abysmal 0.1x DPI. With median IRR falling two years running, from 17.4% in 2023 to -2% for the 2025 vintage, LPs are starved for liquidity. Waiting for the next primary funding round (which now requires 2x to 3x more fundamental growth than in previous cycles) is no longer a viable default strategy.

GPs have a GP fiduciary duty to their LP base. When an anonymized marketplace presents a live, competitive bid for a legacy asset, the GP is structurally obliged to evaluate it.

As modern matchmakers establish order books where every participant is KYC/AML verified, the execution risk is mitigated. Buyers and sellers interact in a trusted venue. The days of relying on a broker to dictate the value of a private asset are ending, and the private market is moving toward absolute transparency.

So What?

Information asymmetry is no longer an excuse for poor execution. If you are a GP relying on a handshake to clear a secondary block, you are actively choosing to leave LP capital on the table. Legacy brokers thrive in the dark. When you trade without a transparent order book, the spread between the bid and the ask becomes the cash the broker just pocketed themselves.

Stop accepting 15% bid-ask spreads as the cost of doing business. Expose your assets to an anonymized order book. Demand secure data rooms, require verified counterparties, and let competitive market tension dictate the true clearing price for your capital.

Omar-Shakeeb Zahir, CEO & Co-Founder SecondLane

Frequently Asked Questions

What is price discovery in private markets?

Price discovery is the process of establishing an asset’s true market-clearing price by exposing it to competing bids. In private markets this historically happened bilaterally, through a single broker, which leaves both sides working from a single data point. Running the asset across a wider marketplace of syndicates, market makers and institutional funds replaces that guess with a real price.

Why do order books produce tighter spreads than broker handshakes?

Competitive tension. Campbell Lutyens data puts the average discount for broad LP-led portfolios at 13.3%, but assets exposed to intense buyer competition, such as single-asset continuation vehicles, compress to 2.9%, with 69% of deals pricing at or above par. An order book also strips out the access tax legacy brokers charge for exclusivity.

Can a GP check secondary pricing without signalling distress?

Yes. Anonymized marketplaces let a GP compare live bids against competing offers and stress-test internal NAV markups without broadcasting a block of shares. Checking the market is baseline portfolio management rather than a distress signal. If the internal valuation diverges sharply from the live order book, the portfolio needs deeper triage.

What is a wall-crossed data room and why does it matter?

It is a secure data room where buyers formally agree to strict legal confidentiality before seeing materials. It matters because emailing a PDF deck across the market makes an asset surrounded: apex buyers writing $50 to $200 million checks assume a widely shopped deal is either overpriced or undesirable, and pass on it.

What does 0.1x DPI mean for the 2021 VC vintage?

DPI measures cash actually returned to investors. PitchBook’s Q2 2026 data shows the 2021 vintage at 0.1x DPI at year five, the lowest five-year realization multiple this century. Median IRR has fallen two years running, from 17.4% in 2023 to -2% for the 2025 vintage, leaving LPs starved for liquidity and pushing GPs toward secondary sales.