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A+ SENTINEL

FREE · BUDDY FOX ACADEMY · IRELAND

Learn finance before you risk money.

Build everyday money skills first, then investing, trading risk and research literacy. Lessons are short, plain-language and linked to primary or official sources.

Start the learning path Practise risk maths Practise probability Stress-test risk How learning works

YOUR PRIVATE DEVICE PROGRESS

Learn at your own pace

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12 SHORT LESSONS · ABOUT 8 MINUTES EACH

Choose a learning path

The recommended order follows the EU/OECD adult financial competence areas, with trading treated as an advanced risk activity.

SENTINEL EVIDENCE LADDER

A confident claim still has to earn trust

  1. 1 · ObservationA pattern or professional opinion worth questioning—not proof.
  2. 2 · Frozen hypothesisThe rule, data, costs and success measure are written before testing.
  3. 3 · Historical validationUntouched data tests the frozen idea, with leakage and overfitting checks.
  4. 4 · Forward observationNew outcomes arrive after the rule is frozen. No rewriting failed history.
  5. 5 · Paper practiceExecution, slippage, discipline and journaling are tested without live money.
  6. 6 · Replicated evidenceResults, limitations and failures remain visible. Validation never means certainty.

PAPER PRACTICE LAB

Risk maths without market execution

These deterministic calculators are for practising arithmetic only. They do not connect to a broker, market feed or account, and they do not place or recommend trades.

Position size

Practise the relationship between planned monetary risk and distance to invalidation.

Enter values to run the paper calculation.

Break-even win rate

See the mathematical win rate needed to offset a chosen average win and average loss before costs.

Enter values to run the paper calculation.

Drawdown recovery

Explore why percentage losses and the gains needed to recover are asymmetric.

Enter a percentage to run the paper calculation.

Boundary: these examples simplify real-world conditions. Fees, slippage, gaps, taxes, contract sizing, liquidity and execution rules can materially change outcomes. The lab is educational and does not provide personalised recommendations or guaranteed-return claims.

PROBABILITY & FAIR-VALUE LAB

Build a probability engine, not a tipster

Use simple arithmetic to separate an offered price from your probability estimate. The tools deliberately expose uncertainty: converting odds is easy; producing a calibrated probability estimate is the hard research problem.

Odds → implied probability

Convert decimal odds into the probability represented by that price before costs or market margin.

Enter values to run the educational calculation.

Probability → fair odds

Convert a probability estimate into decimal odds with no margin or costs.

Enter values to run the educational calculation.

Expected value

Compare your estimated probability with the probability implied by decimal odds.

Enter values to run the educational calculation.

Uncertainty range

Test a low-to-high probability range instead of pretending one estimate is perfectly precise.

Enter values to run the educational calculation.

Probability boundary: an estimated edge is only as credible as the data, model, calibration and out-of-sample evidence behind the probability estimate. These calculators do not discover an edge, predict an outcome, recommend a trade or guarantee a return.

LOSS CAPACITY & SURVIVAL LAB

Survive the bad sequence before dreaming about the good one

Stress-test sizing and sequences without pretending they are forecasts. The aim is to see how repeated losses compound, how R-multiples describe process, and why survival is part of risk control.

How much can I lose?

Apply the same percentage risk to the updated balance across a chosen consecutive-loss scenario.

Enter values to run the stress scenario.

R-multiple sequence

Describe outcomes relative to one planned unit of risk instead of focusing only on currency profit.

Enter R results to analyse the sequence.

Loss-streak survival

Calculate how many consecutive full-R losses would cross a remaining-capital threshold under fixed-percentage sizing.

Enter values to run the stress scenario.

Survival boundary: these are deterministic stress scenarios, not forecasts and not complete risk-of-ruin models. They do not estimate the probability of a losing streak, assume an edge, model dependence between trades, or account for gaps, variable sizing, fees, slippage or changing market conditions.

DESIGNED FOR LEARNING, NOT SCROLLING

Read, recall, apply, revisit

Short lessons

One objective and one worked example reduce unnecessary load.

Retrieval

You answer from memory before marking a lesson complete.

Spaced review

A reminder appears after three days so knowledge is revisited.

Process practice

Notes and paper exercises reward planning and risk control, not lucky profit.

PRACTICE AFTER FOUNDATIONS

Continue inside Sentinel

Options Academy

Pricing, Greeks, volatility, assignment and defined-risk strategy foundations. Account sign-in may be required.

Open Options Academy

Shared Paper Portfolio

Move from browser-only Academy exercises into Sentinel's existing authenticated $100,000 paper account. It keeps one paper portfolio and journal rather than creating a second Academy simulator. Live execution stays off.

Continue to shared paper practice

Strategy Lab

Turn an idea into frozen rules and separate discovery from validation. Eligible membership is required.

Open Strategy Lab

SOURCE & RIGHTS STANDARD

Link, cite, explain in original words

Buddy Fox Academy uses official guidance and research to shape learning outcomes. Public access does not automatically grant permission to copy, redistribute or train on a source. External material stays linked and attributed unless its licence has been checked for the exact use.