Calculator form
Example data table
| Scenario | Total Options | Grant Date | Vest Start | Vesting Months | Cliff | Frequency | As-of Date | Vested Result |
|---|---|---|---|---|---|---|---|---|
| Standard growth grant | 4,800 | 2026-01-15 | 2026-01-15 | 48 | 12 months | Monthly | 2027-07-15 | 1,800 vested |
| Quarterly executive grant | 12,000 | 2026-03-01 | 2026-03-01 | 48 | 12 months | Quarterly | 2028-03-01 | 6,000 vested |
Formula used
floor(Total Options × Elapsed Vesting Months ÷ Total Vesting Months)
Current Cumulative Vested − Previous Cumulative Vested
Vested Options − Exercised Options
max(Current Fair Market Value − Strike Price, 0) × Unexercised Vested Options
Cliff logic delays early vesting events. At the cliff date, the calculator catches up all options that would have vested since the start date. Acceleration, when entered, adds an immediate extra vesting event without allowing total vested options to exceed the grant size.
How to use this calculator
- Enter grant, vest start, and as-of dates.
- Add total options and total vesting months.
- Set the cliff and vesting frequency.
- Enter strike price and current fair market value.
- Add exercised options, if any exist already.
- Use stop vesting date for departure scenarios.
- Enter acceleration inputs only when special vesting applies.
- Press the calculate button to view the schedule.
- Review summary tiles, chart, and event table.
- Use the export buttons for CSV or PDF files.
Frequently asked questions
1. What does a vesting cliff do?
A cliff delays all vesting until one milestone date. When that date arrives, the calculator releases the full catch-up amount that would have vested during the waiting period.
2. Why are vested options different from exercised options?
Vested options are available to use. Exercised options are already converted by paying the strike price. This calculator separates both numbers to show what remains available.
3. Can I model monthly, quarterly, and yearly vesting?
Yes. Choose the frequency that matches the grant terms. The schedule then places vesting events at the correct interval after any cliff rules are applied.
4. What does the stop vesting date represent?
It models a point where vesting stops, such as departure or policy change. Events after that date are excluded from the schedule and summary totals.
5. How is acceleration handled here?
Acceleration creates an extra vesting event on the date you enter. The added amount is capped so total vested options never exceed the full grant size.
6. Does intrinsic spread equal guaranteed profit?
No. It is only an estimate based on current fair market value minus strike price. Taxes, timing, liquidity, and market changes can affect actual realized value.
7. Why can some future vest events show smaller amounts?
Rounding and acceleration can change the remaining schedule. Earlier acceleration may reduce later catch-up sizes because some options already vested ahead of plan.
8. What is included in the CSV and PDF exports?
Both exports include summary figures and the detailed vesting schedule. They help you save scenario outputs, compare grants, or share calculations with teammates.