At left in the box there is distribution as there is a buying climax which is followed the next period by selling and little buying. Both wide ranging bars on low-med volume.
The selling continues on medium volume, punishing the prices, before someone steps in and starts buying, pushing the price back up, perhaps the seller has relented to allow some recovery, when the price reaches the previous high levels, selling resumes - in comes the heavy volume, a lot of stock changing hands, before prices start rising on subdued volume.
Weakness shown in the market at start of volatility, selling down of a large holding, you see large volumes passing on the down days and medium volume on the up days.
Buying is there but is outweighed by the selling. It seems that this distribution is serious enough that it may shake others out during the volatility.