Let me illustrate it on a very simple scale. There are four participants in a market. Each one starts with 100 coins and $100 USD. Each coin is valued at a dollar. Minimum units are 1 coin and 1 dollar. What is the maximum market value?
The correct answer comes from a single pre-final stage:
One person has 400 coins another person has 400 USD and the other two people have nothing. At this point the person with 400 USD pays $400 USD for 1 coin giving all 400 coins value of $400 each i.e. $160,000, except there are no $160,000 in this market.