Theoretically, this possibility is really low in the capital market with hundreds of millions of dollars. It is impossible for any institution to have such huge financial strength to manipulate the market, and its transactions are basically electronic, so it is very risky to occupy a seat in the village.

However, this is only a theoretical analysis. These two articles can hardly be used as a reason why the banker does not exist.

First of all, the existence of the banker has nothing to do with the scale of funds itself. In some small markets, the transaction is perfect, and there is no mechanism of banker control at all. For example, in the gambling industry, the profit opportunities of various investors are average. On the contrary, in a huge market, such as futures market, its speculative mechanism has created a large number of complex short-selling mechanisms, and also made some influential bankers, such as Goldman Sachs, a large investment bank.

The root of real bookmakers is the non-neutral mechanism of risk pricing. If the market mechanism can't naturally disperse the market, the result is that no matter how it is designed, there will always be banker and actual banker effects. Like the gold trading market, the spot market is actually an unfair mechanism, except for the obvious bearish regulars like Morgan Stanley in futures trading.