Before Binance delisted altcoin futures contracts and started listing stock contracts, it used to list Altcoin futures contracts to guarantee trading volume and extract profits. Later, it found that even with these contracts, there was no trading activity, and it faced criticism. So, it decided to stop listing them altogether, limiting the number and instead listing more stock contracts. This way, it still gained trading volume, and the price fluctuations didn't affect its profits – a comfortable situation. Having a stock trading platform would definitely attract gamblers, providing new growth for the exchange, but unfortunately, it didn't benefit most retail investors.