As a cryptocurrency and finance professional, I'm often asked about the legality of various investment strategies. One question that frequently arises is, 'Is copy trading legal in the United States?' Copy trading, or social trading, involves automatically replicating the trades of more experienced or successful traders. While this practice can be beneficial for novice investors looking to learn from the best, it's important to consider the legal implications. In the US, the legality of copy trading depends on a few factors, including the broker or platform being used and the regulations governing their operations. Additionally, investors should be aware of potential risks, such as lack of control over their investments and the possibility of fraud. Ultimately, it's crucial to conduct thorough research and consult with a financial advisor before engaging in copy trading in the United States.