How to Evaluate a Startup's Cap Table

Why Cap Tables Matter More Than Valuation

Most first-time investors focus entirely on valuation and ignore the cap table. That's a mistake. A great valuation with a terrible cap table is worse than a fair valuation with a clean cap table.

Here's what every investor needs to understand about cap tables.

The Basics: What is a Cap Table?

A capitalization table shows who owns what in a company:

Columns:

• Shareholder name
• Share type (common, preferred)
• Number of shares owned
• Percentage ownership
• Date acquired

Key calculations:

• Pre-money valuation ÷ Total shares = Price per share
• Your shares ÷ Total shares = Your ownership %
• Post-money = Pre-money + Investment

Understanding Share Types

Common Stock

• What founders and employees hold
• Gets paid last in liquidation
• No special rights or protections

Preferred Stock

• What investors typically hold
• Gets paid first in liquidation (after debt)
• Has special rights (liquidation preference, anti-dilution, etc.)

The Hierarchy

Debt (bank loans, etc.)
  ↓
Preferred Stock (investors)
  ↓
Common Stock (founders, employees)

Key Cap Table Terms

Pre-Money vs Post-Money

Pre-money valuation: What the company is worth before your investment Post-money valuation: Pre-money + Your investment

Example:
- Pre-money: $5M
- Investment: $1M
- Post-money: $6M

If you invest $1M at $5M pre-money:
- You get 1/6 of the company = 16.7%
- Founder owns the other 83.3%

Fully Diluted Shares

The real number that matters. Includes:

• Issued shares
• Options (vested and unvested)
• Warrants
• Convertible notes (when they convert)

Issued shares: 4M
Options (all): 1M
Warrants: 100K
Convertible note (if converts): 200K
Fully diluted: 5.3M shares

Option Pool

Shares reserved for future employees. The key question: Pre-money or post-money?

Pre-money option pool (bad for you): The option pool comes out of the company before valuing it. You pay for those shares implicitly.

Post-money option pool (better): The option pool is created after your investment. You don't pay for it.

The Cap Table Math

Dilution Across Rounds

Every new round dilutes existing shareholders:

Seed Round:
- Founders: 10M shares (100%)

Series A (you invest $2M at $8M pre-money):
- Pre-money: $8M
- Investment: $2M
- Post-money: $10M
- Your shares: 2M (you get 16.7%)
- Founders: 10M (83.3%)

Series B (new investor invests $5M):
- Pre-money: $25M
- Investment: $5M
- Post-money: $30M
- Series B investor gets 16.7%
- Your %: 83.3% × 83.3% = 69.4%
- Founders: 69.4%

The Option Pool Shuffle

This is where founders hide dilution from investors.

The trick:

1. Before Series A, founders create a 20% option pool
2. This comes out of the company pre-money
3. Investors unknowingly pay for the option pool

Example:

Without option pool shuffle:
- Pre-money: $10M
- Post-money: $12M
- You get 16.7%

With 20% option pool pre-money:
- Founders have 80% of the real company
- Pre-money is calculated on 80%
- Post-money is calculated on 80%
- You get ~13.9% instead of 16.7%

What to ask:

• "Where does the option pool come from (pre or post)?"
• "What's the fully diluted cap table including all options?"

Red Flags in Cap Tables

Warning Sign #1: Massive Option Pool Pre-Money

If the option pool is >20% pre-money, founders are hiding dilution.

Warning Sign #2: Multiple Share Classes

Different rights for different shareholders can create conflicts.

Warning Sign #3: Convertible Notes Not Converted

If there are outstanding notes, there's unknown dilution coming.

Warning Sign #4: Shadow Shares

Side agreements that give certain shareholders extra rights not visible in the main cap table.

Warning Sign #5: Related Party Holdings

If a significant % is held by "related parties" (often family members or friends), there's hidden concentration.

How to Read a Cap Table

Step 1: Get the Full Table

Request:

• All shareholders and their %
• All outstanding options and exercise prices
• All warrants and their terms
• All convertible instruments
• Any side agreements

Step 2: Calculate Fully Diluted

Fully Diluted = Issued Shares + All Options + All Warrants + Note Conversion Shares

Step 3: Find the Option Pool

True Founder % = Founder Shares / Fully Diluted

Step 4: Model Future Dilution

If there's a Series B coming:

• What does the cap table look like post-B?
• How much will you be diluted?
• At what valuation does your ownership become economically meaningless?

The Cap Table and Valuation

Example: "Good" Valuation, Bad Cap Table

The deal:

• Valuation: $5M (sounds cheap!)
• But: 30% option pool created pre-money
• But: $2M in convertible notes outstanding

Real math:

Pre-money: $5M
But option pool is 30% pre-money:
- Real company value: $5M / 0.7 = $7.14M
- You pay $1M for 14.3% instead of 16.7%

Plus convertible notes convert to ~15% more shares
- Your real ownership: ~12%

At a $50M exit, you thought you'd get $6M (12% of $50M) but actually get less because of liquidation preferences and participating preferred.

Example: "High" Valuation, Clean Cap Table

The deal:

• Valuation: $10M (sounds expensive!)
• Clean cap table: founders 80%, option pool 10%, no notes
• No hidden dilution

Real math:

• You invest $2M for 16.7%
• Your shares: 1.67M
• Fully diluted: 10M shares

At a $50M exit:

• You get $8.3M (16.7% of $50M)
• Clean cap table = predictable ownership

Key Questions to Ask About Cap Tables

1. "What's the fully diluted cap table?"
2. "Where does the option pool come from (pre or post)?"
3. "Are there any outstanding convertible notes?"
4. "Are there any side agreements or shadow shares?"
5. "What's the waterfall look like in a $20M exit? $50M exit? $100M exit?"
6. "Are there any major shareholders who might have conflicting interests?"
7. "What's the employee option pool and when does it get filled?"

The Waterfall Analysis

The waterfall shows who gets paid what in an exit at different valuations.

Example waterfall at $20M exit:

Wait - founders get nothing? Only if liquidation preference is 1x non-participating and investors take everything up to their preference.

Better scenario at $50M exit:

Best scenario at $100M exit:

Key Takeaways

1. Fully diluted matters more than headline valuation - Calculate real ownership
2. Option pool source is critical - Pre-money = hidden dilution
3. The waterfall tells the real story - Model exits at $20M, $50M, $100M
4. Shadow shares kill deals - Any undisclosed instruments are red flags
5. Clean cap table > high valuation - Predictable ownership beats hidden dilution

Tools

• Cap Table Calculator
• Dilution Model
• Liquidation Preference Calculator

This guide is part of SoloAnalyst's due diligence toolkit. For automated cap table analysis, try SoloAnalyst.