Pattern Detection

NR4 / NR7 Narrow Range Day Detector

Paste your last 7 or more daily ranges (high minus low), oldest first and today last. This checks whether today's range is the narrowest of the last 4 days (NR4) or the last 7 (NR7). That's the Toby Crabel signal that tends to show up right before a range expansion.

Daily ranges, oldest first, today last (one per line)

Needs at least 7 values. Extra older values are ignored.

Today's range ···

Smallest of last 4 ···

Smallest of last 7 ···

NR4? ···

NR7? ···

Educational tool only, not financial advice. A narrow range day is a volatility observation, not a directional signal on its own.

Built by Jason Parker, founder of Trading Ranges.