# %B

This strategy was taken from chapter 5 of [*High Probability ETF Trading*](https://moshferatu.dev/moshferatu/high-probability-etf-trading) (2009) by Larry Connors.

It is based on the [%B indicator](https://moshferatu.dev/moshferatu/ninjatrader/src/branch/main/indicators/%25b).

## Rules

**Long**

1. The ETF (e.g., SPY) must be above its 200-day moving average.
2. If the %B closes < 0.2 for 3 days in a row, enter a long trade.
3. **(Optional Aggressive Version)** If the %B closes < 0.2 again during the initial trade, enter a second long trade.
4. Exit the trade when the %B closes > 0.8.

**Short**

1. The ETF (e.g., SPY) must be below its 200-day moving average.
2. If the %B closes > 0.8 for 3 days in a row, enter a short trade.
3. **(Optional Aggressive Version)** If the %B closes > 0.8 again during the initial trade, enter a second short trade.
4. Exit the trade when the %B closes < 0.2.

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