A sell signal is generated when three of six criteria change direction. The most important three are marked below with an asterisk.
. * 10-day moving average crosses 20-day
* MACD signals by sell
* Price breaks out of the established linear regression (standard error) channel
* Spot price surpasses 20-day moving average
* Price breaks hand-drawn support or resistance
Spot price surpasses old high or low (= breakout) or important moving average like 100-day or 200-day