The Forex Strength Meter measures the decorrelated and normalized strength of the major currencies USD (US Dollar), CAD (Canadian Dollar), EUR (Euro), GBP (British Pound), AUD (Australian Dollar), NZD (New Zealand Dollar), JPY (Japanese Yen), and CHF (Swiss Franc). Each currency is shown over a selectable time period (today, last 24 hours, this week, this month, this year, ...).
Forex strength can be used for instance for trading strong/weak pairs (to maximize profits due to volatility or ranges), divergences, etc.