About SPXPlay
By VantureCap · Published July 21, 2026
SPXPlay is the home of the Playbook Trainer — a free browser game that lets you practice defined-risk options trades on real market history and see what each trade would actually have paid, without risking a dollar.
Who builds it
SPXPlay is built and operated by VantureCap, a small independent research shop that builds quantitative tools for options markets. Our day job is data work: collecting historical index and equity option quotes, backtesting spread strategies, and measuring what actually happens after different market setups. The Playbook Trainer started as an internal exercise — a way to drill the judgment call that no spreadsheet teaches: given this tape, which structure do you put on, and what does it pay? We published it because practicing on real history turned out to be far more instructive than reading about strategies in the abstract.
Where the data comes from
Every scenario in the trainer is a real past market session, not a simulation:
- Charts are actual daily candles — five years of SPX history (more than 1,000 sessions), plus a past year of SPY, QQQ, TSLA, AAPL, MSFT, NVDA, META, GOOG, AMZN, NFLX, AMD, MU, INTC, SNDK, GLD, and SLV.
- Option prices come from historical option-chain quotes for those same dates. The credits, debits, and strikes you see are what the market was showing, with simplified fills and a flat $1.30 per-trade commission applied to keep results honest.
- Outcomes are computed from what the underlying actually did next, so the P&L on the reveal is the realized result of that spread over that historical hold — wins, losses, and max losses included.
- Dates are masked on purpose. If you could see the date, you could look up the answer; with dates hidden, you have to read the tape the way you would at a live open.
Market context shown alongside scenarios — trend and volatility readings, economic-calendar and earnings markers — is drawn from the same historical record.
What the trainer is — and is not
Playbook Trainer is an educational practice tool. It is a place to build pattern recognition, learn how vertical spreads are priced, and feel — safely — what a max loss does to an account.
It is not investment advice, a trade-signal service, or a brokerage. No real orders are placed and no real money is at stake. Historical results are hypothetical, simplified, and do not predict future performance. Options involve substantial risk: even defined-risk spreads can lose their entire maximum loss, and short option positions can be assigned. If you trade with real money, that is your decision and your risk — nothing here is a recommendation to buy or sell any security.
How the site is funded
The core game is free: ten rounds per session, no account, no download. An optional SPXPlay Pro subscription removes the session cap, and the free tier may show ads. That is the entire business model — we do not sell trading signals, courses, or your data.
Contact
Questions, bug reports, data corrections, or feedback: support@spxplay.com — or see the support page. We read everything.
Legal details live in the Terms of Service and the Privacy Policy.
Playbook Trainer is an educational game built on historical market data. Nothing on this page is investment advice or a recommendation to trade. Options involve substantial risk; defined-risk spreads can lose their full maximum loss. Scenario dates are masked, and prices reflect historical option quotes with simplified fills.