Never long when both medium-term and long-term are below 0 axis.
Never short when both medium-term and long-term are above 0 axis. Just consider to reduce positions.
Buy in when during long term, medium term falls and pumps again.
Buy in when long term belows 0 axis, and moving forward to 0 axis, and medium term turns to above 0 axis.
When both terms are bolw 0 axis, sell them all.
Better works with MACD.
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