Show an experienced investor a cap table and they'll scan it in thirty seconds. What they're looking for is not the headline ownership numbers. They're looking for the things that make the next round harder.
You should look for those same things before they do.
What gets read first
Founder ownership concentration. Two co-founders at 40% each is healthy. One founder at 65% and three at 5% each is a warning sign: is the 65% person the only real founder, or did equity get distributed badly? Either way, you'll be asked about it.
Investor concentration on the prior round. One investor holding 30% from the seed is a structural risk. They effectively have a veto on future rounds, and the next lead investor will model around them. Five investors holding 6% each is much cleaner.
Option pool size. A pool that's larger than 15% of the company at seed is unusual; a pool that's smaller than 5% at Series A is rare. The size signals how the company thinks about hiring, and it changes the math on the next round (most rounds top up the pool, which dilutes existing holders).
What gets read next
Dead equity: shares held by people who left or were never active. A 5% co-founder who quit nine months in and is no longer involved is dead equity. The company should have negotiated repurchase rights. If it didn't, the new investor knows the founder didn't have hard conversations early.
Side letters and special terms. Some old investors negotiate pro rata rights, board observer seats, or veto rights. These show up in the cap table as footnotes but matter as governance. A new lead investor will ask whether all those side terms have been collected or renegotiated.
A clean cap table is a forward-looking artifact. It signals that the founder has been having the hard conversations all along.
What surprises new investors
The biggest cap table surprises are usually convertible notes from old fundraising, sometimes years old, that nobody mapped onto the current SAFE math. Notes that should have converted at the seed but didn't, because the documents weren't followed correctly. Notes with interest that the company hasn't accrued.
These are fixable, but they take time. A founder discovering a forgotten note during diligence is a founder losing two weeks to lawyers right when they need momentum.
The fix, briefly
Before you start a round, get your cap table modeled by someone who knows what they're doing. Carta, Pulley, or a good corporate lawyer will produce a clean ownership table including all convertibles, with assumed conversion math at the next round. Look at it.
If the table shows dead equity, repurchase what you can. If it shows forgotten notes, resolve them. If it shows an old investor with disproportionate rights, have a conversation now, not when the new lead is on the call.
What it means
The cap table is a credibility document. A clean one signals competence. A messy one, even if it's defensible, signals that the founder has been deferring hard conversations. Investors read the deferral, not just the math.
Clean it up before they see it.