Glossary · Risk & money

Equity curve in gold trading

An equity curve is a chart of account value over time or trade by trade; its slope shows profitability and its dips show drawdowns and consistency.

Also called Account growth curve, P&L curve, Balance curve

An equity curve plots account equity (or balance) after each trade or each day. A rising line means profit; dips show drawdowns; the smoothness of the line shows how consistent the results are. Strategy testers, journals and spreadsheets can all draw one.

How it applies to gold trading

A gold strategy’s equity curve tells you more than any single statistic. A steady staircase with shallow dips suggests a stable edge. Long flat stretches followed by spikes suggest the system depends on a few big trend days, and you need the patience to sit through the flat parts. A suspiciously smooth curve that ends in one vertical drop is the classic shape of martingale and grid systems.

Some traders use the curve as a filter: trade full size when equity is above its own moving average and reduce size when it is below. That can cut drawdowns but also delays recovery; test it before relying on it.

Worked example

Example (hypothetical numbers): two strategies each made $6,000 over a year on $20,000. A’s curve rose in 10 of 12 months with a worst dip of $1,200. B was flat for eight months, then gained $9,000 in two months and lost $3,000 in one. Same profit, very different experience and risk of quitting.

It is also worth plotting the curve in R rather than dollars. That removes the effect of changing position size and shows whether the edge itself is stable over time.

A common mistake

Plotting only closed balance. Equity, including open trades, shows the real drawdowns you lived through.

See also: Drawdown, Recovery factor, Martingale, Trading journal.

Frequently asked questions

What does a good equity curve look like?

A line that rises over time with drawdowns you could tolerate in real money. Very smooth curves deserve suspicion, especially from grid or martingale systems.

Should I plot balance or equity?

Equity, if possible. Balance hides the open losses that a trade went through before it closed.