Cross vs Isolated Explained — Measured (PDF Guide)
Your venue offers two margin modes and explains neither. Cross sounds safer because the whole balance defends the position; isolated sounds safer because only one bucket can be lost. You picked one, and nobody told you what it costs.
This guide sets out the structural difference exactly, then measures the assumption underneath the cross-margin case: that your other positions will be fine while one goes wrong. Across 8,799 hourly returns on ten instruments, all 45 pairs were measured, and then measured again restricted to the worst hours. This is a 44-page PDF that teaches Cross vs Isolated margin from the first thing you see on the screen through to a written strategy with an entry, a stop and an explicit rule for when the trade is wrong.
Nothing is taught underneath a chart. Every label sits on the candle, the line or the level it is describing, on real BTC, ETH, SOL and LINK charts. There are three quizzes on real charts, each followed by the same chart re-shown annotated with the reasoning, plus faded practice pages where the first steps are filled in and you finish the rest.
WHAT'S INSIDE
How independent your positions actually are - Median correlation 0.7824 across 45 pairs. The LEAST correlated pair in the whole set is 0.6921.
And what happens in the hours that matter - Restricted to the worst 5 per cent of Bitcoin hours, the median moves to 0.7794 - a change of -0.0030. It does not break down; it barely moves.
What each mode actually does - Isolated caps the loss at one bucket and moves your liquidation nearer. Cross moves the liquidation further away and puts the whole balance behind it. Both are real; neither is safer in general.
The question that decides it - Not which is safer, but what you want to be true when you are wrong: a known maximum loss, or a longer runway.
Why the usual advice is backwards - Cross is recommended for diversified books. On this evidence a crypto book is not diversified enough for that argument to hold.
WHAT YOU'LL BE ABLE TO DO
State exactly what changes when you switch margin mode.
Say how correlated your positions really are, and check it yourself.
Explain why diversification does not rescue a cross-margined book.
Choose a mode from what you want to be true when you are wrong.
Read any diversification claim by asking when it was measured.
AN HONEST NOTE
Cross vs Isolated margin is a clue, not a crystal ball. It describes what price has already done. This guide contains no win rates, no historical-test results and no promises about what you will make, because nobody can verify those and you should not trust anyone who prints them. What it hands you instead is a set of rules you can test yourself on TradingView in an afternoon. Educational, not financial advice.
Instant download. 44 pages, PDF.