Telkonet Inc (fka TKO)

[reallybadtrader]

It probably was an instituional buy/sell, but thats not neccesarily a bad thing, cuz someone had to buy it! Insitutions can trade amongst themselves at pre-negotiated prices, there is something called a Level III which is what large institutions and Market Makers can use for orders like this. I suspect that putting a large block on the bid or offer during market hours could induce panic one way or the other. This way the buyer and seller can arrive at a price and execute the order without affecting the pps during market hours.

Just speculation on my part but I think that why you see what you see.