Understand the market. Decide with data.
WolfStalk turns complex market data into actionable insight. One workspace connects market data, volatility analytics, options simulation with Greeks, scenario analysis, empirical statistics, backtesting and an AI research desk - so every decision you take names the numbers behind it.
What is in the product
Everything a decision needs, in one workspace
Options simulator with Greeks
Assemble a position from any number of legs, pick strikes and an expiration, and watch the payoff curve, the break-even points, the maximum profit and loss and the Black-Scholes Greeks update instantly.
Strategy wizard
Fourteen built-in structures - strangles, straddles, vertical spreads, iron condors, iron butterflies, ratio spreads and synthetics - built in one click around the current index level, with an explicit warning wherever exposure is unlimited.
Volatility and scenario analytics
IV rank, percentile, cone and term structure show where implied volatility stands against its own record, and the scenario matrix crosses index moves with volatility shifts and time decay.
Empirical statistics
How often did the index really move more than 2% between expirations? That is a number, not a feeling - read it off distributions built from 15 years and 3,770 sessions of settlement history.
Backtesting
Run a structure across the historical record, size contracts from a target amount, and read cumulative profit and hit rate per strategy - with the premium assumption stated on screen.
Portfolio tracking
Run several portfolios side by side, track open and closed positions, and see running profit and loss marked against current market prices.
Coverage
Four of the most heavily traded index option markets
Every tool in WolfStalk - the simulator, the payoff chart, the expiration history and the statistics - runs on the same engine across all four instruments, so a strategy you learn on one transfers directly to the others.
SPX
Cash-settledS&P 500 Index
- Listed on
- CBOE
- Exercise
- European (no early assignment)
- Multiplier
- ×100
SPY
Physically settledSPDR S&P 500 ETF
- Listed on
- NYSE Arca
- Exercise
- American (early assignment possible)
- Multiplier
- ×100
QQQ
Physically settledInvesco QQQ Trust
- Listed on
- Nasdaq
- Exercise
- American (early assignment possible)
- Multiplier
- ×100
NDX
Cash-settledNasdaq-100 Index
- Listed on
- Nasdaq
- Exercise
- European (no early assignment)
- Multiplier
- ×100
SPX and NDX are cash-settled European index options - they cannot be assigned early, which is why they are the cleanest instruments for defined-range strategies. SPY and QQQ are American-style options on ETFs and can be assigned before expiration. The simulator models the payoff at expiration, so early assignment on SPY and QQQ is not simulated.
The simulator
See the risk before you take the position
Every position is built from legs - call or put, buy or sell, at any listed strike and any active expiration. The moment a leg is added, the payoff at expiration is recomputed, the break-even points are marked, and the maximum profit and loss are shown - including an explicit flag whenever the exposure is unlimited.
- Interactive payoff chart for any position structure
- Break-even points computed automatically, however many legs there are
- Maximum profit and loss, with a warning on open-ended exposure
- Commissions included in the calculation - the result is net
- Running profit and loss marked against current market prices
The strategy wizard
Pick a market view - bullish, bearish, neutral or volatile - and the wizard proposes the structures that fit it, in standard options vocabulary:
Each structure expands into concrete legs around the current index level, with its maximum profit, maximum loss and break-even points spelled out.
The statistics
Put a base rate behind every range you choose
Every options position is a claim about how far the index can move. Before you commit to a range, read how often the market actually stayed inside it: distributions of moves between expirations, day-of-week cuts and short-dated versus monthly comparisons, computed over 15 years and 3,770 sessions of settlement history. Whether a ±1.5% range is realistic stops being an opinion and becomes a number you read off a chart.
Go to the statistics pageHow that changes a decision
Say you built a short strangle with a profit range of roughly ±1.5% around the index. Instead of estimating the odds that the index stays inside it, you pull the historical distribution of moves between expirations and read off how often the realised move actually fell inside that range. It does not promise anything about the future, but it replaces a guess with a base rate.
AI research desk
Ask a question, get an answer from the data
Position analysis
"What are the break-even points on the position I just built, and what happens to it if the index drops 3%?" - the assistant reads the actual legs and explains the structure.
Historical queries
"In what share of monthly expirations did the index move more than 2%?" - the answer comes from the database, together with the figure it was derived from.
Plain explanations
What an iron condor is really doing, how a ratio spread differs from a vertical, or what happens to a position at cash settlement.
The assistant is an educational tool. It does not provide investment advice and does not recommend any transaction in securities.
How it works
Four steps from sign-up to a managed position
- 01
Open an account
Sign up in a minute. 14 full trial days, no credit card required.
- 02
Build a position
Pick a structure from the wizard or assemble legs by hand - calls and puts, long and short, at any strike and any expiration.
- 03
Check the assumption
Run the range through scenario analysis and the recorded distribution of moves between expirations, and see how often it actually held - before any money is at risk.
- 04
Track and learn
Save the position to a portfolio, follow its running profit and loss, and close it when your assumption plays out - or when it breaks.
Plans
Three plans, all starting with a free trial
Edge
Your Wolf on the full record - 15 years, stocks, volatility
$79.90 / month
Plan detailsAnnual billing gives you two months free. Compare all three plans.
Try it for 14 days, no credit card
Full access to the simulator and the strategy wizard. If it is not for you, simply do not continue.