Sphere of Influence, because of results leaking into invisible market makers, which are deciding in advantage of a knowledge, that other usually never have. Translated especially for you.
"In this T+3 record before the Banro earning is showing, what earning results are leaking into insiders and institutional investors. It is the Rule in all companies suitable allmost, small number of surprices documents the whole working of "invisible hand of Stockmarket".
So the share soars 3 days, or more, before earnings declaration and when earning blows, the stock allways plunges, because of technical reasons."
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