주식 옵션 가치 계산기
엑시트 가격 시나리오별 ESO 가치를 계산하세요.
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작동 방식
Enter strike price, current FMV, growth rate, years to expiry, risk free rate, and volatility. The tool values your employee stock options. Strike comes from your grant letter. FMV is the latest 409A or public market price. Volatility and risk free rate should reflect current market conditions and company stage. Refresh inputs after each funding round when 409A reprices your grant. Enter grant strike, current fair market value, and vested versus unvested shares separately when modeling departure scenarios. Split vested and unvested in grant table when modeling departure forfeit versus exercise decision. Enter grant strike, current fair market value, and vested versus unvested shares separately when modeling departure scenarios. Split vested and unvested in grant table when modeling departure forfeit versus exercise decision.
Review current option value, intrinsic and time value, exit scenarios at multiple prices, and break even exit price for your options. Compare scenario tables across grant years if you hold multiple tranches. Unvested shares are not exercisable but scenario analysis helps evaluate job offer equity packages before accepting. Early exercise of ISOs within 90 days of departure preserves favorable tax treatment worth modeling separately. Tender offers and secondary transactions may occur at discounts to the last 409A FMV used here. Compare intrinsic value today against Black Scholes time value when deciding early exercise before IPO lockup ends. Early exercise for ISO starts AMT clock: model tax cash separately from exercise cost. Compare exercise today versus wait for next 409A mark when illiquidity discount is wide. Compare intrinsic value today against Black Scholes time value when deciding early exercise before IPO lockup ends. Early exercise for ISO starts AMT clock: model tax cash separately from exercise cost. Compare exercise today versus wait for next 409A mark when illiquidity discount is wide.
against Black Scholes time value when deciding early exercise before IPO lockup ends. Early exercise for ISO starts AMT clock: model tax cash separately from exercise cost. Compare exercise today versus wait for next 409A mark when illiquidity discount is wide. Compare intrinsic value today against Black Scholes time value when deciding early exercise before IPO lockup ends. Early exercise for ISO starts AMT clock: model tax cash separately from exercise cost. Compare exercise today versus wait for next 409A mark when illiquidity discount is wide.
입력값이 변경될 때마다 주식 옵션 가치 계산기을(를) 사용하세요: 시장 변동, 새로운 기여금 또는 수정된 개인 가정 후. 소프트웨어 설치 없이 빠른 재실행을 위해 페이지를 북마크하세요.
단계별 안내
- 주식 옵션 가치 계산기을(를) 열고 현재 입력값을 입력하세요.
- 계산된 출력과 요약 테이블을 검토하세요.
- 가정을 조정하고 시나리오를 나란히 비교하세요.
실전 예제
Enter strike price, current FMV, growth rate, years to expiry, risk free rate, and volatility. Enter the sample inputs described in How it works to reproduce the scenario step by step.
한 번에 하나의 입력을 조정하여 민감도를 확인하세요. 주식 옵션 가치 계산기은(는) 즉시 업데이트되므로 행동하기 전에 낙관적 및 보수적 가정을 스트레스 테스트할 수 있습니다.
이 계산기를 사용할 때
Reach for Stock Option Value Calculator when calculate eso value across exit price scenarios.. It suits quick what if analysis before trades, allocation changes, or plan updates.
결정이 세금, 유동성 또는 하나의 공식이 포착하는 것 이상의 다년 전망을 포괄할 때 관련 도구와 함께 사용하세요.
흔한 실수
입력 단위나 오래된 시장 가격을 확인하지 않고 출력을 복사하는 것은 주식 옵션 가치 계산기에서 흔한 오류입니다. 행동하기 전에 티커, 백분율 및 날짜를 확인하세요.
단일 기준 시나리오만 실행하면 꼬리 위험을 무시합니다. 보수적 입력으로 스트레스 테스트하고 결정이 중요할 때 아래 나열된 관련 도구와 비교하세요.
공식
Option Value = S×N(d1) - K×e^(-rT)×N(d2) where d1 = (ln(S/K) + (r + σ²/2)T) / (σ√T), d2 = d1 - σ√T. Intrinsic = max(S-K, 0). Time Value = Option - Intrinsic. Break Even = K + Option Value.
Black Scholes call pricing with polynomial CDF approximation. Exit scenarios from 0.5× to 5× strike. Does not model vesting cliffs, early exercise, 409A valuations, or tax at exercise. Use for planning conversations with financial advisors. RSU grants have no time value component and require a different valuation approach entirely. Private company FMV is board determined 409A: public stock uses market price; illiquidity discount not applied here. Liquidity discount on private shares often twenty to thirty percent below last round price. 83b election deadline thirty days after early exercise: missing deadline taxes vesting spread at ordinary rates. AMT on ISO exercise can exceed cash from selling some shares: plan tax liquidity. Private company FMV is board determined 409A: public stock uses market price; illiquidity discount not applied here. Liquidity discount on private shares often twenty to thirty percent below last round price. 83b election deadline thirty days after early exercise: missing deadline taxes vesting spread at ordinary rates. AMT on ISO exercise can exceed cash from selling some shares: plan tax liquidity.
제한 사항 및 가정
Black Scholes call pricing with polynomial CDF approximation. Exit scenarios from 0.5× to 5× strike. Does not model vesting cliffs, early exercise, 409A valuations, or tax at exercise. Use for planning conversations with financial advisors. RSU grants have no time value component and require a different valuation approach entirely. Private company FMV is board determined 409A: public stock uses market price; illiquidity discount not applied here. Liquidity discount on private shares often twenty to thirty percent below last round price. 83b election deadline thirty days after early exercise: missing deadline taxes vesting spread at ordinary rates. AMT on ISO exercise can exceed cash from selling some shares: plan tax liquidity. Private company FMV is board determined 409A: public stock uses market price; illiquidity discount not applied here. Liquidity discount on private shares often twenty to thirty percent below last round price. 83b election deadline thirty days after early exercise: missing deadline taxes vesting spread at ordinary rates. AMT on ISO exercise can exceed cash from selling some shares: plan tax liquidity. Stock Option Value Calculator does not replace personalized advice. Fees, slippage, account specific rules, and behavioral constraints may change real world outcomes.
주요 용어
- How is ESO value calculated
- The tool uses Black Scholes to compute the theoretical option value: Call = S×N(d1) - K×e^(-rT)×N(d2).
- What exit scenarios are shown
- Eight scenarios: 0.
- 모델 가정
- Time value is highest when stock is near the strike and plenty of time remains.
대안 비교
Equity Dilution Simulator models cap table impact alongside employee option pools. Use those calculators when stock option value calculator alone does not capture the full decision.
portfolios.tools의 내부 링크는 계산기 체인을 도와줍니다: 먼저 주식 옵션 가치 계산기을(를) 실행한 다음, 아래 관련 섹션의 전문 도구로 엣지 케이스를 검증하세요.
FAQ
How is ESO value calculated?
The tool uses Black Scholes to compute the theoretical option value: Call = S×N(d1) - K×e^(-rT)×N(d2). Intrinsic value = max(S-K, 0). Time value = option value - intrinsic value. ESOs are call options on company stock with vesting schedules not modeled here. Use current fair market value as S and your grant strike as K. Private company 409A valuations update quarterly and directly shift option value before IPO. AMT on ISO exercise without sale can create large tax bill: model cash needed to hold shares past exercise date. Intrinsic value equals max of zero and fair market value minus strike times share count for vested portion. AMT on ISO exercise without sale can create large tax bill: model cash needed to hold shares past exercise date. Intrinsic value equals max of zero and fair market value minus strike times share count for vested portion.
What exit scenarios are shown?
Eight scenarios: 0.5×, 0.75×, 1×, 1.25×, 1.5×, 2×, 3×, 5× the strike price. Each shows option value, intrinsic value, and time value at that exit price. The 2× and 5× scenarios help founders and early employees estimate upside at successful exit multiples. Deep out of the money grants show mostly time value until FMV approaches strike. IPO lockup periods delay liquidity even when exit price scenarios look attractive on paper. NSO exercise triggers ordinary income on spread at exercise: withholding on paycheck may not cover full liability. NSO exercise triggers ordinary income on spread at exercise: withholding on paycheck may not cover full liability.
When is time value highest?
Time value is highest when stock is near the strike and plenty of time remains. Deep in the money options have near zero time value. Deep out of the money have low option value overall. Volatility input should reflect company stage: early startups use 40 to 60%, public companies 25 to 35%. Longer expiry increases time value at all moneyness levels. Post IPO volatility often compresses as lockup expiry approaches and float increases. Post termination exercise window of ninety days is common: unvested shares forfeited unless company offers extended window. Ninety day post termination exercise window is common: unvested shares forfeit on departure. Post termination exercise window of ninety days is common: unvested shares forfeited unless company offers extended window. Ninety day post termination exercise window is common: unvested shares forfeit on departure.
What is the break even exit price?
Break Even Exit = Strike Price + Current Option Value. You must sell at or above this price to cover both the strike cost and the current option premium. For ISO grants break even ignores AMT impact which can be substantial at exercise. NSO exercise triggers ordinary income on the spread at exercise. Secondary market sales before IPO may occur below break even if FMV is discounted for illiquidity. RSU vests taxed as ordinary income at vest with no strike: different tool than ESO grant math. RSU vests taxed as ordinary income at vest with no strike: different tool than ESO grant math.
How do assumptions affect option value?
Adjust growth rate, volatility, years to expiry, and risk free rate. Higher volatility and longer expiry increase option value. Growth rate affects projected FMV at future exit but Black Scholes uses current FMV as input. Risk free rate typically tracks 10 year Treasury yield. Small volatility changes move option value significantly for at the money grants. Compare ISO versus NSO tax treatment separately since exercise timing affects net proceeds not captured here. Net exercise options reduce cash needed at exercise but increase share count dilution at the company level. Tender offers before IPO let employees sell secondary: compare tender price to modeled FMV in this tool. Secondary tender at discount to preferred price still beats zero if company delays IPO indefinitely. Tender offers before IPO let employees sell secondary: compare tender price to modeled FMV in this tool. Secondary tender at discount to preferred price still beats zero if company delays IPO indefinitely.
휴대폰이나 태블릿에서 주식 옵션 가치 계산기을(를) 사용할 수 있나요?
예. 이 도구는 데스크톱과 동일한 공식으로 모바일 브라우저에서 완전히 실행됩니다. 선택적 localStorage는 브라우저 설정에서 활성화된 경우 기기에 입력값을 기억할 수 있습니다.
주식 옵션 가치 계산기을(를) 사용할 때 내 데이터는 어디에 저장되나요?
당사 서버 어디에도 없습니다. 계산은 브라우저에서 로컬로 실행됩니다. 선택적 localStorage는 기기에서만 양식 필드를 저장하며 네트워크를 통해 포트폴리오 번호를 전송하지 않습니다.
세금 또는 법적 결정에 주식 옵션 가치 계산기에 의존해야 하나요?
아니요. 이 도구는 교육용 수학만 제공합니다. 세법, 계좌 규칙 및 개인 상황은 다양합니다. 중대한 결과를 초래하는 거래 전에 자격을 갖춘 세무 또는 법률 전문가와 상담하세요.
관련 도구
Equity Dilution Simulator models cap table impact alongside employee option pools. Risk Reward Ratio helps evaluate liquid public holdings separately from illiquid ESO wealth. Post Retirement Tax covers exercise timing and AMT considerations not modeled here. Wash Sale Alert flags tax loss harvesting conflicts when exercising and selling employer stock. Equity Dilution Calculator shows how later funding rounds shrink grant percent even when strike stays fixed. Equity Dilution Calculator shows how later funding rounds shrink grant percent even when strike stays fixed.