Bollinger Bands
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https://fxdreema.com/shared/b7OSZMv1e
When EA open a trade outside the bollinger bands, if the price is still outside the bands, EA open a trade and and this situation continues. How can I prevent this?
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This is standard with BB trades, you will have to decide what is yes and what is no for your particular strategy, there is no golden rule to prevent trades from going against your strategy.