NR7 Pattern
What Is the NR7 Pattern?
The NR7 (Narrow Range 7) pattern is a volatility contraction setup that identifies a trading day with the narrowest price range of the last seven days, signaling a potential impending breakout.
The NR7 pattern is a classic short-term trading setup developed by Toby Crabel, introduced in his seminal book "Day Trading with Short Term Price Patterns and Opening Range Breakout." It is based on a foundational principle of market mechanics: markets alternate between periods of range expansion (high volatility) and range contraction (low volatility). Specifically, the **NR7** represents a period of extreme contraction. It occurs when the daily range (High minus Low) of the current trading day is the smallest it has been in the last seven days. The logic is simple but powerful: essentially, the market is "coiling" like a spring. When price action tightens significantly, it indicates indecision and a temporary balance between buyers and sellers. This quiet period is rarely sustainable. Usually, it is the calm before the storm, preceding a sharp, explosive move (breakout) as the market seeks a new value area. The NR7 doesn't predict the *direction* of the move, only that a significant move is likely starting soon.
Key Takeaways
- NR7 stands for "Narrow Range 7" days.
- It identifies the day with the smallest high-to-low range in the last 7 trading sessions.
- The pattern predicts a volatility expansion (breakout) is imminent.
- It was popularized by trader Toby Crabel in the 1990s.
- Traders typically place buy/sell stop orders above/below the NR7 candle's extremes.
How to Identify and Trade NR7
**Identification:** 1. Calculate the daily range for today and the previous six days (Range = Day High - Day Low). 2. If today's range is smaller than all of the previous six days, today is an NR7 day. **Trading Strategy (The Breakout):** Since the pattern is direction-neutral, traders often use a straddle-like approach (or wait for confirmation): * **Buy Trigger:** Place a "buy stop" order slightly above the High of the NR7 day. * **Sell Trigger:** Place a "sell stop" order slightly below the Low of the NR7 day. * **Stop Loss:** If the buy triggers, the stop loss is placed below the NR7 low (and vice versa). **Trading Strategy (The Fade):** Some contrarian traders use NR7 failures. If price breaks out above the NR7 high but fails to gain momentum and falls back into the range, they might short the market, betting on a "fakeout."
Key Elements of the Pattern
* **The Range:** This is the absolute difference between the high and low price. It does not consider the gap from the previous close, only the intraday travel. * **The Context:** NR7s work best when they align with a broader trend. An NR7 that forms during a pullback in a strong uptrend is a higher-probability setup than one in a choppy, sideways market. * **Inside Days:** Often, an NR7 day is also an "Inside Day" (where the high is lower than yesterday's high, and the low is higher than yesterday's low). This combination (Inside Day + NR7) is an even stronger signal of contraction.
Advantages of NR7
The primary advantage of the NR7 is its **defined risk**. Because the range of the signal day is small (by definition, the smallest in 7 days), the distance between the entry point (the high) and the stop loss (the low) is minimal. This allows traders to take large position sizes with tight stops, offering excellent Risk/Reward ratios. Additionally, it is an **objective** pattern. There is no guessing; the math either says it's an NR7 day or it isn't.
Disadvantages of NR7
The main disadvantage is **false breakouts (whipsaws)**. In a dull market, price might poke above the NR7 high, trigger your buy order, and then immediately reverse to stop you out. This is common in low-volume environments. Another issue is that while it predicts volatility, it doesn't predict direction, forcing the trader to react to price movement rather than anticipate it.
Real-World Example: Stock Breakout
Consider a stock "XYZ" trading in a range. **Daily Ranges for the last 7 days:** Day 1: $2.50 Day 2: $3.10 Day 3: $1.80 Day 4: $2.20 Day 5: $1.50 Day 6: $1.90 **Day 7 (Today): $1.10** Today's range ($1.10) is the smallest of the set. This is an NR7 day. **NR7 High:** $150.50 **NR7 Low:** $149.40 **The Trade:** The trader places a Buy Stop at $150.60 and a Sell Stop at $149.30. Next morning, XYZ rallies on news. It crosses $150.60, triggering the long trade. The stock surges to $155.00. The trader captured a $4.40 move with a risk of only ~$1.20.
FAQs
Yes. The logic of volatility contraction applies to all timeframes. An NR7 on a weekly chart (narrowest weekly range in 7 weeks) often precedes a significant multi-week move.
Yes. Ideally, volume should also be contracting (drying up) on the NR7 day, confirming the lack of interest/indecision. A breakout on high volume adds validity to the subsequent move.
Bollinger Bands are excellent. An NR7 often coincides with a "Bollinger Band Squeeze." Historical Volatility indicators (like ADX or ATR) will also be at lows.
It can be either. In a strong trend, it is often a continuation pattern (a pause before the trend resumes). At support/resistance levels, it can mark a reversal.
Toby Crabel is a legendary commodities trader and fund manager. His book on short-term price patterns is considered a cult classic among quantitative and systematic traders, focusing on opening range breakouts (ORB) and volatility patterns.
The Bottom Line
The NR7 pattern is a testament to the cyclical nature of markets: quiet leads to loud, and small leads to large. By systematically identifying these days of extreme quiet, traders can position themselves to catch the next wave of momentum right as it starts. It is a favorite tool for breakout traders because it offers clear, objective rules for entry and risk management. However, like all technical patterns, it works best when combined with context—such as trend analysis or volume confirmation—to filter out the noise.
Related Terms
More in Candlestick Patterns
At a Glance
Key Takeaways
- NR7 stands for "Narrow Range 7" days.
- It identifies the day with the smallest high-to-low range in the last 7 trading sessions.
- The pattern predicts a volatility expansion (breakout) is imminent.
- It was popularized by trader Toby Crabel in the 1990s.