Bitcoin has tumbled nearly 13% in the past seven days and is trading now at $40,000. Bitcoin mining stocks like Riot closely follow the price of BTC. Should its price continue to be weak in 2022 amid rising interest rates and a risk-off investor sentiment, this will be bad news for RIOT stock, which holds Bitcoin as assets on its balance sheet. Having an asset on your balance sheet means you want it to appreciate over time, not lose value. The financial results for the full year ended Dec. 31, 2021 showed the mining company increased its Bitcoin holdings "by 353% to 4,884 BTC as of December 31, 2021, compared to 1,078 BTC as of December 31, 2020." Bitcoin was trading at about $48,000 in early January 2022, so Riot Blockchain has already a loss of approximately 17% holding Bitcoin on the balance sheet. Riot Blockchain acquired North America's largest Bitcoin mining facility, Whinstone, back in May and has increased its hash rate capacity by 444% in 2021 compared to 2020.