RE: CIBC is preparing for I suggest you lodge a complaint with the securities commission. Such a practice of selling to oneself is a securities violation (wash trading). CIBC is obviously manipulating the market. The regulators will look at the history since December and act accordingly.
A friend of mine made an innocent mistake of selling shares from his trading account to his RRSP, value of only a few hundred dollars, and his accounts were suspended. It took him a while to get it straightened out.