I just recently found out that only a taker and a maker can be matched to complete a trade.
I used to think that two takers could also be matched.
Suddenly it all makes sense, and I feel pretty dumb.
For example, one taker buy and one taker sell—
in reality, these two can't complete a trade.
This rule at exchanges requires a market maker to be involved.
It also helps me better understand OI, as well as the logic behind price increases and decreases.

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Vanke is about to face liquidation.
What exactly went wrong?
In fact, Vanke publicly issued a risk warning of "survival" as early as 2016.
The Vanke team's market sensitivity is sufficient.
The entire industry foresaw the turning point in the real estate market.
However, the next operations are incomprehensible.
Large-scale land acquisition nationwide to buy the dip.
It's like the KOL shouting "the last chance to escape."
Secretly buying the dip and increasing positions.

Cboe will launch Bitcoin and Ethereum Perptual Futures on December 15.
This will be the first offering of perpetual-style crypto derivatives within the U.S. regulatory framework, which may attract a significant influx of institutions.