What are the popular varieties of futures? Are futures classified? Which futures are easier to make and make money?

Hello, futures varieties are divided into sectors, and popular varieties can also be understood as large turnover. Now rebar, iron ore, PTA, soybean meal, methanol and fuel oil are all popular varieties, and futures trading software has real-time ranking.

Futures profit and loss mainly depends on their own trading level, and there is no saying that any variety is easy to make money.