[ArkanExplorer]

https://en.wikipedia.org/wiki/Bucket_shop_(stock_market)

"In a form of what is now considered illegal front running and self-dealing, a bucket shop holding a large position on a stock, and knowing a client's vulnerable margin, might sell the stock on the real stock exchange, causing the price on the ticker tape to momentarily move down enough to exhaust the client's margins. Through its opportunistic actions, the bucket shop thereby gains 100% of the client's investment.

The term bucket shop came to apply to other types of scams, some of which are still practiced. They were typically small store front operations that catered to the small investor, where speculators could bet on price fluctuations during market hours. However, no actual shares were bought or sold: all trading was between the bucket shop and its clients. The bucket shop made its profit from commissions, and also profited when share prices went against the client.

Bucket shops were made illegal after they were cited as a major contributor to the two stock market crashes in the early 1900s."