The volumes at 80% of times are mock volumes. Don't you know it already? Mocked by who? Maybe not mocked by those "they" but mocked by these "they". "They" mock volumes to make a living! And it takes them only 20% of "they"'s efforts to do it legally.
You can even deduce it before you know it! Hint: price change and volume traded cover commissions? How many outside people can trade such large volume? If it were true, everyone bankrupt except brokers and exchanges.
An analog here. If it is not "they" masturbating, it is "they" f8cking each other. You know what! Masterbation and f8cking are legal. So is this mocking con business .