Understanding Market Volatility
Volatility is the dispersion of returns — a measure of how far price typically travels, not of which direction it will take. Reading it correctly changes position sizing, stop placement and expectations. These principles apply across every environment we study, including PaltusTrade.
Author: Financial Markets Research Team · 9 min read · Published 2026-06-30
Historical, implied and realised
Historical volatility measures what price has already done. Implied volatility, derived from option prices, reflects what the market currently expects. Realised volatility is what subsequently occurs. The gap between implied and realised is itself informative: persistent excess of implied over realised indicates a market paying for protection.
For most retail purposes, a simple measure such as average true range is sufficient and considerably harder to misuse than a sophisticated one.
Why volatility clusters
Quiet periods follow quiet periods and violent periods follow violent ones. This clustering is one of the most robust empirical regularities in finance, and it has a direct practical use: current volatility is a reasonable estimate of near-term volatility, even though direction is not similarly predictable.
It also means that stops and targets calibrated during a calm regime become badly mismatched once a regime shifts. Recalibrate periodically rather than fixing distances permanently.
- Scale stops with a volatility measure, not a fixed pip count
- Reduce size as volatility expands to keep currency risk constant
- Re-measure at fixed intervals, not only after a surprise
Volatility-adjusted position sizing
If your stop is set at a multiple of average true range, your position size must fall as that range widens in order to hold currency risk constant. Traders who keep size fixed are unknowingly taking far more risk in turbulent markets than in calm ones — usually at exactly the wrong time.
Events and scheduled risk
Central bank decisions, inflation prints and earnings create predictable volatility spikes. Spreads widen, depth thins and slippage rises. Deciding in advance whether your strategy trades through these events or stands aside removes a recurring source of improvised, poorly sized decisions.
Volatility in practice
Platforms that display volatility measures and current spreads alongside the order ticket make this discipline far easier. Our PaltusTrade review notes where that information sits, and our risk management guide sets out the sizing arithmetic in full.
Conclusion
Measure volatility with a simple, consistent tool, expect it to cluster, scale position size inversely to it, and decide your event policy in advance. Volatility is not the enemy — mismatched exposure is.