Early options trading in the US began in 1872, founded by the then famous financier Russell, and at that time included call and put options, the market was always OTC and required trading through brokers.
A stock exchange is a legal person that provides premises and facilities for the centralized trading of securities, organizes and supervises the trading of securities, and exercises self-regulation.
A bond is a financial contract, a debt instrument issued to investors by governments, financial institutions, industrial and commercial enterprises, etc. to raise funds by borrowing directly from society, while promising to pay interest at a certain rate and repay the principal on agreed terms.
Bitcoin has the mathematical characteristics of money (durability, portability, interchangeability, scarcity, separability and identifiability), but it does not rely on physical characteristics (such as gold and silver) or the trust of the central authority (such as fiat currency).
Litecoin was one of the first cryptocurrencies to enter the market. When it was first launched in 2011, it was known as "Bitcoin Gold and Lite Silver" alongside Bitcoin because its blockchain was mostly derived from the Bitcoin code.
Bit is the unit of information in the digital world, so Bitcoin is naturally the currency of the digital world. Bitcoin is a digital currency with significant value in the real world. Therefore, Bitcoin can be used to exchange dollars, yen or any other currency in the world. Bitcoin can usually be abbreviated as "BTC".
The reason why blockchain can establish trust is that it represents a real shared record. The data that everyone can trust will help promote the development of other new technologies, and will also greatly improve the efficiency, transparency and trust of mutual cooperation.
