It has nothing to do with what Hecate said and that's a fact. ECU has tons of PR stuff going on and insider buying is a red herring. It's not ECU specific even if we think it is and there lots of examples.
This week is quadruple options expiry and the volatility is huge as expected. It seems to have some association with junior gold and silver stories and I'm not sure why. I expect it will be related to some hedge funds and positons long and short they have which is creating volatile conditions in their entire portfolios. Even gold looking ready to move higher has had little to no positive impact.
It's wide spread and even stories like CSI have dropped from $3.50 to $2.75 or CDE from around $16 to under $11. These are extreme moves.