01 / Shared risk
Does correlation mean protection?
Interpret daily co-movement and BTC tail days without turning either into a prediction.
Quant learning · guided practice
Read the risk.
Check the claim.
A practical workbook for understanding what a crypto diversification result actually says—and what it leaves out.
13 pages · four exercises · separate worked answers
$19 USD · proposed launch price
Free enquiries are open. Payments are disabled.
No reservation or purchase is created.
Free exercise
Try one question before you decide.
Open the complete sample-sensitivity worksheet from the workbook. Fill it from the free study or notebook, then decide whether the paid practice sequence would help.
Worksheet 03 · unworked
Change the window. Recheck the story.
Printable HTML and a plain-text download. No login, purchase or answer key.
Open the free worksheet →Inside the workbook
Four questions worth practicing.
02 / Drawdown
How deep was the loss?
Compare maximum closing drawdowns and calculate the gain needed to recover.
03 / Sample sensitivity
Does the period change the story?
Inspect 2024, 2025 and the combined window. Separate sample evidence from a general claim.
04 / Costs
What does rebalancing consume?
Work through turnover and a stated fee assumption. Identify omitted trading frictions.
Start free
The evidence is open.
The article, source data, calculation audit and reactive marimo notebook are free. The workbook adds a structured practice sequence, answer key, glossary and reusable review checklist.
Start the free lesson →Who this is for
Stock and crypto learners who can read a percentage and want to assess quantitative claims more carefully. The PDF exercises need no code; rerunning the optional notebook requires Python setup.
Historical 2024–2025 BTC/ETH case study. No signals, forecasts, personalized portfolio advice or promised trading outcomes.
A defined product.
One downloadable PDF, delivered privately after a future accepted order and confirmed payment. One factual correction request within seven days. No subscription, video course, live coaching or future lesson series is included.
Read the preview terms →Questions before buying?
Ask about the exercises, accessibility or a source correction. Save the private reply link; no email address is required.
Open a free enquiry ↗