How to read a startup cap table before you invest, and check the round label against the price

What to check on a cap table before you invest

Check four things: who owns what today on a fully diluted basis, what every outstanding SAFE and convertible note does when it converts, how big the option pool will be after the round and who pays for it, and whether the round's label matches its price. Most of the bad surprises at seed hide in the second and third.

Ask for the cap table as a spreadsheet or a Carta export. A slide won't do. It shows percentages, while the spreadsheet shows share counts, classes, vesting and the conversion terms that will move those percentages later.

Fully diluted ownership

Your ownership only means something on a fully diluted basis: every issued share, every granted and ungranted option in the pool, every warrant, and every SAFE and note as if it converted. A founder who quotes ownership on issued shares alone isn't lying. The number you'll actually own is just smaller.

Look at founder vesting while you're there. Founders with fully vested shares and no acceleration terms can walk out with their equity, and that risk sits with you. At seed the norm is four-year vesting with a one-year cliff, sometimes with credit for time already served.

SAFEs and notes

List every SAFE and note with its amount, valuation cap, discount, and whether it's pre-money or post-money. On a post-money SAFE, the holder's ownership equals the investment divided by the post-money cap, and later SAFEs dilute the founders instead of earlier SAFE holders. That's why the number to model is the cap. The next round's headline valuation comes second.

SAFEs stacked at different caps over two years can convert into a bigger slice of the company than the founders expect. Their surprise at the priced round becomes your problem. Model the conversion before you sign, across a range of priced-round valuations.

The option pool shuffle

Investors in a priced round usually require the option pool to be created or topped up before the round, inside the pre-money valuation. Venture Hacks named this "the option pool shuffle" in 2007. The effect is that existing holders absorb the pool's dilution, and the effective pre-money ends up lower than the headline number.

Carta's guidance puts most pools at 10% to 15% of equity, and it cites a 2026 term-sheet survey where 71% of term sheets created or increased the pool. If you're coming into a round, find out whether the pool increase sits in the pre-money (it dilutes existing holders) or the post-money (it dilutes you too).

Does the round label match the price

Round labels are marketing. Prices are facts. Compare the round's size and valuation with published medians for the stage. On Carta, the median seed pre-money reached a record $16 million in Q3 2025 and the median Series A pre-money hit $49.3 million. PitchBook-NVCA put the US median seed deal at $3.5 million in 2025.

A "seed" round priced like a Series A isn't wrong in itself. Strong teams can command it. But you're paying Series A prices for seed-stage risk, and the next round has a higher bar to clear. Carta reports median dilution at seed and Series A of roughly 19% to 20%. A round selling a lot less than that at a high price, or a lot more at a low one, deserves a question.

Rights that come with the check

Check what you get besides shares: pro-rata rights to invest in the next round, information rights (the NVCA model grants "Major Investors" quarterly financials within 45 days and annual financials within 180 days), and whether your SAFE converts into the same preferred stock as the new money. Small checks often get none of this unless they ask.

When to bring in an outside read

A cap table with several SAFE layers, an Israeli entity, or a pool shuffle in the terms is quick work for someone who reads them every day and slow going for anyone else. Olivent Diligence checks the cap table, the conversion math and the round label against the pricing in every Full Diligence ($8,500, five business days), and flags it in a Pre-Wire Screen ($2,500, 48 hours). Only the investor pays.