bots explained?

I read an interesting article recently about the US OTC markets, particularly how these stocks trade on a Friday afternoon on their home markets.

The author asserted that, because market makers in stock like BNIKF have to cover their Friday trading in the US, they often try to bring down the price of the parent stock on the home exchange (ASX for BLT). As we have seen a significant increase in daily trading volumes of BNIKF in the US over the last six months, could it be that the BNIKF market makers in the US are the ones behind that bots? Are they trying to keep prices low so as to cover their overnight trading in the US? If so, the move to BTEBY may well change this with a price tied to the ASX and greater clarity of stock ownership.

Just a thought.