The JPMorgan Trading Desk the U.S. Called a Crime Ring
bloomberg.com
bloomberg.com
Highly relevant plug: https://gsiexchange.com/jp-morgan-cornered-silver-market/
JP Morgan is almost as crooked as Wells Fargo. A $1 Billion fine is nothing to them, especially because they are hoarding precious metals with the intent of being "last man standing" in a hyperinflation scenario. If I was RICOing them, I would stipulate that they lose the actual object of thier conspiracy - the silver. Unlike gold, which is used mainly for speculation, silver has many industrial uses and a certain constant demand. If JP Morgan nukes silver production, the whole world suffers.
Brokers used to front run these orders in the past - which was illegal. But an algo bidding on top is fine because the order is by then public
So traders would trick the algo by placing some orders on the other side so the algo would get ahead of those instead (if there was more volume going that way) and execute against the position they had. Once the algo ran ahead of the opposite orders, they are cancelled out.
Anyways, this is not legal under current market rules, even though someone could execute against those orders while they were up.
One question - algo orders can be pretty darn abusive (but seem rarely prosecuted). Nutty cancel to fill rates, remember flash orders, quote stuffing etc etc...