What stock symbol is io?

Could you please clarify what you mean by "io"? Are you referring to a specific company or organization that operates in the cryptocurrency or finance space, and you're wondering about its stock symbol? If so, it's worth noting that not all cryptocurrency-related entities are publicly traded companies and, therefore, may not have a stock symbol. If "io" is indeed a reference to a publicly traded company in the cryptocurrency or finance sector, I would recommend researching the company's official name and then checking financial news websites or stock market exchanges to find the corresponding stock symbol. However, if "io" refers to a cryptocurrency or a blockchain project, it's important to understand that these entities are not typically traded on traditional stock markets and, therefore, do not have stock symbols. Instead, they may have a unique ticker symbol or identifier that is used on cryptocurrency exchanges.