Leverage and margin: why price and equity change differently
A hypothetical 5000 position funded by 1000 equity loses 10% of equity after a 2% price fall.
Borrowing makes a position larger than the investor’s own money. The same price move can therefore produce a different equity return. Record position value, debt and equity separately to avoid changing denominators without noticing.
Separate the balance sheet
In this educational example,1000 equity plus 4000 borrowed funds purchases a 5000 long position. Initial leverage is position value divided by equity:5000/1000=5. This is neither a promised return nor an acceptable-risk recommendation.
Margin concerns required collateral. Initial and maintenance requirements depend on the instrument, agreement, venue rules and broker. Leverage alone cannot identify an exact forced-close price. No specific contract is modelled here.
Use the correct denominator
After a 2% price fall the position is worth 4900, debt remains 4000 and equity is 900. The 100 loss is 2% of the position but 10% of initial equity. A 2% rise would produce 5100−4000=1100, or+10% before costs. Quantity stays fixed; there are no flows or distributions.
Table rows are alternative endpoint scenarios, not an account history. If hypothetical interest and fees of 20 are charged separately over the period in addition to the 100 price loss, equity becomes 880, a 12% loss. Do not deduct a cost twice; the stated 4000 debt excludes these additional 20.
Our own teaching example; all figures are hypothetical.
E = V − D; 5000 × (1 − 0.02) − 4000 = 900; (900 − 1000) / 1000 = −10%
| Price change | Position | Debt | Equity | Equity return |
|---|---|---|---|---|
| +2% | 5100 | 4000 | 1100 | +10% |
| −2% | 4900 | 4000 | 900 | −10% |
| −10% | 4500 | 4000 | 500 | −50% |
| −20% | 4000 | 4000 | 0 | −100% |
Where the simple model ends
A 20% fall leaves zero model equity. It does not mean a position could safely remain open to that price: collateral may be required earlier. A gap can skip an expected price; the contract and product regime determine consequences, potentially including losses beyond the initial equity.
The SEC source describes US margin-account risks; local terms need separate verification. Elliott does not execute trades, calculate margin requirements or determine liquidation levels. A useful next step is to study drawdown and recovery while keeping this example educational.
With the same 5000 position and 1000 initial equity, price falls 1%. What is the equity loss before costs?
5000 × 1%=50;50/1000=5%. This is not a liquidation threshold or an acceptable risk level; those require contract terms.
Sources
Sources checked: 2026-10-21
This material and its translations were prepared with AI assistance. Educational calculations were checked programmatically. Sources explain concepts; examples and files were created for this article.
Related reading
Next step
Learn why recovery requires a different percentage gain from the percentage previously lost.
Drawdown and recovery: why −20% needs +25% →