No one knows for sure but their roles are actually the same, investors and traders have the opportunity to gain profits and losses so it makes no difference.
I was in both, profit and loss is greater when I trade. My skills might be an investor but for now I am not sure about investing.
investing can also be different. it will all depend on your portfolio strategy. if you invest 95 percent of your money in bad coins, then most likely for you better just trade