What a wide bid-ask spread tells you about a private company

On a public exchange, the gap between what buyers offer and sellers want is usually a fraction of a percent, compressed by constant trading and abundant information. In private secondaries, a genuinely wide spread — sellers wanting 20% more than buyers are willing to pay — isn't unusual. Rather than treating that gap as noise, it's worth reading as information in its own right.

Why the spread starts wide by default

A private company has no continuous market and no public order book, so every buyer and seller is effectively negotiating from a different information set and a different sense of fair value. Add the illiquidity, lack of information rights, and consent uncertainty covered throughout this site's glossary, and a structurally wide starting spread is the expected default, not an anomaly.

A narrowing spread signals growing consensus

As more data accumulates about a specific company — repeated tender offers at a consistent price, several marketplace transactions clustering around a similar level, a stable run of quarters without surprises — buyer and seller expectations tend to converge, and the spread narrows. Well-covered, frequently traded names like the largest AI labs and pre-IPO unicorns typically show tighter spreads than obscure, thinly traded ones, simply because more transaction history exists to anchor both sides' expectations.

A persistently wide spread is itself a warning sign

When a spread stays wide despite plenty of trading activity, it usually means buyers and sellers fundamentally disagree about the company's trajectory — not just about price, but about direction. That disagreement is often a leading indicator of real uncertainty: an unclear path to profitability, a contested growth narrative, or looming competitive or regulatory risk that different market participants are weighing very differently.

How to actually use this signal

Before transacting, check not just the headline bid or ask you've been quoted, but how wide the full spread actually is and how it has moved over recent months — a narrowing trend suggests growing market confidence, a widening one suggests growing disagreement, and either is more informative than a single snapshot price. See the buyer & fund directory for the marketplaces that publish this kind of pricing data, andwhat secondary pricing reveals before a primary round for how this fits into the broader picture.