Cryptocurrencies have historically been a volatile asset, meaning it has had more rapid and unpredictable changes in their price over the years than other assets like stocks or bonds. A portfolio invested in a highly volatile asset is more likely to experience more dramatic changes to its value than a portfolio of less volatile assets.
Historically, Bitcoin has had a low correlation to stocks and bonds. That means when the price of stocks goes up or down, it doesn't necessarily influence the value of Bitcoin. This diversity in your portfolio can help you weather market bumps long-term.
Please see acorns.com/disclosures for other risks and a link to the prospectus.