Companion lessons & practice cases
Companion learningTwelve lessons, concept checks and fictional cases.
Desk-wide or learning tool.
Open Companion lessons & practice cases →ONE CONNECTED TRADING DESK
Find your tool.
Carry the idea forward.
Explore 28 existing tools for learning, research, planning, manual paper practice and review. Learning and the core research-to-review workflow open directly on this website. Remaining specialist tool links open the separate Operator portal.
For free guest practice here, open companion learning or options arithmetic. Learning answers are session-only. Guest workflow records save in this browser and support website JSON backup/restore; they do not synchronize app records.
Start learning · guest →Options arithmetic · guest →Open guest practice desk →Back to the company website →
A public tool link does not share private ideas, transfer saved data, connect a broker or place an order. Tools requiring an idea ask you to choose or create one.
EXPLORE THE WORKFLOW
Choose what you need.
28 tools available to explore.
Option-chain trainer
Companion learningPractice interpreting fictional contract columns in Learn.
Desk-wide or learning tool.
Open Option-chain trainer →Company market overview
External displayExternal charts, company summaries and selected news; paper prices stay manual.
Desk-wide or learning tool.
Open Company market overview · separate app →Company research worksheet
Manual saved workflowBusiness, results, valuation, contrary case and dated evidence.
Uses a selected connected idea.
Open Company research worksheet →Source register
Manual saved workflowDated attribution, source status and preserved card revisions.
Uses a selected connected idea.
Open Source register →Research version comparison
Manual saved workflowCompare saved wording with current research and original entry.
Uses a selected connected idea.
Open Research version comparison →Evidence review queue
Manual saved workflowRevisit latest source cards across saved ideas using manual check dates.
Desk-wide or learning tool.
Open Evidence review queue · separate app →Watchlist
Manual saved workflowKeep watched companies attached to their research drafts.
Desk-wide or learning tool.
Open Watchlist · separate app →Contract comparison
Manual saved workflowCompare two manually entered contract candidates, costs and liquidity context.
Uses a selected connected idea.
Open Contract comparison →Position sizing
Manual saved workflowApply your chosen allocation and whole-contract premium budget.
Uses a selected connected idea.
Open Position sizing · separate app →Premium scenarios
Entered assumptionsModel hypothetical closing premiums and fees; not price forecasts.
Uses a selected connected idea.
Open Premium scenarios · separate app →Expiration explorer
Entered assumptionsInspect hypothetical expiration outcomes using entered assumptions.
Uses a selected connected idea.
Open Expiration explorer · separate app →Written plan & pre-entry review
Manual saved workflowWrite conditions and examine missing-input corrections before paper entry.
Uses a selected connected idea.
Open Written plan & pre-entry review →Saved playbook workspace
Manual saved workflowInspect and compare reusable conditions and linked paper records.
Desk-wide or learning tool.
Open Saved playbook workspace · separate app →Advanced strategy analysis
Entered assumptionsSeparate theoretical one-to-four-leg European option scenarios.
Uses a selected connected idea.
Open Advanced strategy analysis · separate app →Paper position & closing ledger
Manual saved workflowManual entries, partial closes, fees and final close; no brokerage orders.
Uses a selected connected idea.
Open Paper position & closing ledger →Position observations
Manual saved workflowRead dated observations connected to the preserved plan.
Uses a selected connected idea.
Open Position observations →Findings & next test
Manual saved workflowCompare the result with your plan and preserve a dated review.
Uses a selected connected idea.
Open Findings & next test →Decision Replay
Manual saved workflowReconstruct saved reasoning and events; not historical market replay.
Uses a selected connected idea.
Open Decision Replay →Broker CSV reviewer
Files & recoveryReview local filled-execution CSV mappings; separate from paper fills.
Desk-wide or learning tool.
Open Broker CSV reviewer · separate app →Monthly paper-results calendar
Manual saved workflowReview completed-paper outcomes by final-close date.
Desk-wide or learning tool.
Open Monthly paper-results calendar · separate app →Paper cash journal
Manual saved workflowVirtual deposits, withdrawals and coverage-aware manual equity.
Desk-wide or learning tool.
Open Paper cash journal · separate app →Portfolio risk scenarios
Entered assumptionsStress remaining paper positions with manual price/IV assumptions.
Desk-wide or learning tool.
Open Portfolio risk scenarios · separate app →Dates & reminders
Manual saved workflowReview entered reminders and create calendar-file copies; no background alerts.
Desk-wide or learning tool.
Open Dates & reminders · separate app →Saved idea library
Manual saved workflowSearch current and preserved reasoning in connected ideas.
Desk-wide or learning tool.
Open Saved idea library · separate app →Backups & recovery
Files & recoveryCompare local copies, checkpoints and protected restore files.
Desk-wide or learning tool.
Open Backups & recovery →Files & downloads
Files & recoveryReading reports versus restore data, with recent request history.
Desk-wide or learning tool.
Open Files & downloads · separate app →Trading account handoff
Optional account handoffReviewed optional account sync; account sign-in and ownership still apply.
Desk-wide or learning tool.
Open Trading account handoff · separate app →No matching tools. Try a shorter term or choose All groups.
KNOW WHAT THE DESK DOES
Clear scope. Connected work.
Your inputs stay yours.
Paper entries, closes, prices, scenarios and source checks use entered information. Charts and the market tape are separate vendor displays; they do not fill your plan.
Bring records forward deliberately.
This browser has its own records. Use a reviewed backup or optional private account handoff when changing devices. Sign-in is needed for in-app SEC retrieval, private attachments and account sync.
Learn at your own pace.
The original companion includes 12 lessons and a 17-topic mechanics reference. They support practice and do not replace the complete approved book curriculum or individualized guidance.
Expansion remains separate.
Live option quotes, brokerage execution, background alerts, historical option replay and evaluated AI coaching are not connected. Paper results and theoretical scenarios do not establish trading skill or predict returns.
Tool descriptions captured 2026-10-24. Core website practice is integrated; specialist app tools remain separate. This is not a full-parity claim.