Everything you need to know about OptionsVault — from the basics to advanced features.
Getting Started
OptionsVault is a professional-grade options trading platform that combines a Black-Scholes options profit calculator with real-time market data, earnings analysis, stock projections, economic calendars, and market news — all in one place. It's designed for traders who want to analyze options strategies before committing capital. Black-Scholes calculators can only provide estimates, as sudden market volatility, interest rate changes, and a number of other factors can greatly affect the value of an option.
No account is required to use the calculators. All Black-Scholes, Greeks, Theta Decay, and Strategy Visualizer tools are open to everyone. A free account unlocks saved watchlists, personalized news and earnings filtered to your tickers, and calculator inputs that remember your last session — plus a clear upgrade path to live data when you're ready.
Creating a free account is worth it if you visit more than once. Here's what changes when you're signed in:
Saved watchlist — add tickers once and they follow you across the Stocks, News, Projections, and Earnings pages. No re-typing symbols on every visit.
Remembered calculator inputs — your last Black-Scholes, Greeks, and Theta Decay inputs reload automatically on your next session, so you can pick up where you left off.
Personalized news & earnings — the Market News and Earnings Calendar can filter by your watchlist tickers so relevant events surface first.
No repeated setup — preferences like your default ticker and view settings persist between visits.
Upgrade path — when you're ready for live options chain data, real-time Greeks, and IV Rank, your free account upgrades to Premium in one click. Anonymous visitors can't.
Your data is stored securely in your browser (for calculator state) and in our Supabase-backed database (for your watchlist and preferences). We never connect to your brokerage and never see your positions or funds. Create your free account →
All authentication is handled by Supabase, a trusted open-source backend provider. We never store passwords — only your email and plan status. OptionsVault does not connect to your brokerage account and never has access to your funds. All analysis is purely educational and for informational purposes.
Options Calculator
The calculator uses the Black-Scholes model — the industry-standard formula for pricing European-style options. You enter a stock ticker, strike price, expiration date, and implied volatility, and OptionsVault instantly calculates the fair value of your call or put option, along with all five Greeks. You can also build multi-leg strategies and see your combined P&L at expiration.
The break-even price is the stock price at expiration where your trade neither profits nor loses money. For a call option, it equals the strike price plus the premium paid. For a put option, it equals the strike price minus the premium paid. OptionsVault displays this automatically for every position.
Add multiple legs and the P&L chart updates in real time.
A call option gives you the right to buy 100 shares of a stock at the strike price before expiration — you profit when the stock rises. A put option gives you the right to sell 100 shares at the strike price — you profit when the stock falls. OptionsVault calculates the theoretical value and Greeks for both.
Greeks & Volatility
The Greeks measure how sensitive an option's price is to different market factors:
Delta (Δ) — How much the option price moves per $1 move in the stock. A delta of 0.5 means the option gains $0.50 for every $1 the stock rises.
Gamma (Γ) — How fast delta itself changes. High gamma means your delta is accelerating.
Theta (Θ) — Time decay. How much value the option loses each day as expiration approaches.
Vega (V) — Sensitivity to implied volatility. A vega of 0.2 means the option gains $0.20 for each 1% rise in IV.
Rho (ρ) — Sensitivity to interest rate changes. Less relevant for short-dated options.
Implied volatility (IV) is the market's forecast of how much a stock will move over the life of an option, expressed as an annualized percentage. Higher IV means the market expects bigger moves — and options premiums are more expensive. Lower IV means calmer expectations and cheaper options. You enter IV manually in OptionsVault, or you can look it up in your broker's options chain.
Every option has an expiration date. As time passes, the option loses extrinsic (time) value even if the stock doesn't move — this is theta decay. Theta accelerates dramatically in the last 30 days before expiration. Option buyers fight against theta; option sellers collect it. OptionsVault shows your daily theta so you can quantify this cost.
Market Tools
Stock quotes, news, and market data are powered by Finnhub and are refreshed frequently (typically within 1–2 minutes of market prices). Options chain data for pricing inputs (IV, last price) comes from your broker's platform — OptionsVault uses these as inputs to calculate theoretical values via Black-Scholes. An available premium plan brings real-time data to all pages; otherwise some data may have a typical 15-minute delay, and sometimes greater.
The Projections tool combines analyst price targets, historical growth rates, and financial fundamentals to generate forward-looking price scenarios for any stock. Enter a ticker, choose a time horizon, and OptionsVault calculates bull, base, and bear case price estimates. These can feed directly into the options calculator as your price target. The calculator is only as accurate as the data you input — researching a company, understanding their past earnings, and using guidance from recent earnings calls are all necessary to enter accurate sales and earnings growth numbers.
The Earnings Calendar shows upcoming earnings report dates for thousands of companies. Options traders often use earnings events to time volatility strategies — IV typically spikes before earnings and collapses after. Knowing the earnings date helps you avoid unexpected IV crushes or plan volatility plays around them.
The Economic Calendar tracks upcoming macroeconomic events that move markets — including Fed rate decisions, CPI inflation reports, jobs numbers (NFP), and GDP releases. These events often cause sharp moves in index options (SPY, QQQ) and can significantly impact implied volatility across the board.
Investments — Grow any investment, compounding over time
Retirement — A robust tool for multi-decade financial planning. Determine the exact savings threshold required to maintain your standard of living, and visually evaluate how mid-horizon expenses and withdrawals will alter your long-term financial trajectory.
Mortgage — Calculate the cost of a mortgage over any time period, including the effect of accelerating repayment with lump sum or extra monthly payments, as well as property taxes, insurance, and other options on the total cost of homeownership.
Dividend — Model your long-term investment trajectory using current yield and dividend growth metrics for a chosen stock or ETF. This tool demonstrates how minor adjustments to growth rates, paired with decisions to reinvest or withdraw dividend income, fundamentally alter your future portfolio value.
Dividend Portfolio — A powerful tool allowing you to input your entire planned portfolio of dividend stocks, modifying expected yields and yield growth.
Premium plans allow the portfolio to be saved and updated over time.
Account & Plans
The free plan includes the full options calculator, stock quotes, news feed, earnings calendar, economic calendar, and wealth calculation tools — most with somewhat delayed data. Premium plans add much higher API call limits, advanced stock information with AI-enhanced analysis of recent quarters and trajectory, live data for all site components, dividend portfolio storage for continuous planning over time, full access to any added features, and priority contact with our development team to request additional site functionality. Check the registration page for current pricing.
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No. OptionsVault is an educational and analytical tool only. Nothing on this site constitutes investment, financial, legal, or tax advice. Stock and options trading involves significant risk, including the potential loss of the entire premium paid, the risk of stocks falling to zero (bankruptcy), and more. Always do your own research and consult a licensed financial advisor if additional guidance is needed to support your decisions.
Ready to analyze your first trade?
Use the Black-Scholes calculator to price any options strategy — free, no credit card required.