Gap Up. Gap up creates support, which is magnet[1]. A lot of times when there's a gap the market simply goes sideways (half the time), 25% of the time it begins a bear trend, 25% of time to get a bull trend[2]. When there is a Big Gap Up, it should be looked as a big BLBCH, i.e. a strong bull BO, hence, it increases the chance of a trend day, but the trend can be up or down (if down, it is a failed BLBO). Also, if yesterday ended with a big selloff and today has a BGU, the BGU needs to be looked as a BBLRVB. ➟ More about GU