%0 Journal Article %T Bitcoin and Stock Returns: An Empirical Study %A Chikashi Tsuji %J iBusiness %P 147-153 %@ 2150-4083 %D 2023 %I Scientific Research Publishing %R 10.4236/ib.2023.152011 %X This paper investigates the profitability of Bitcoin and US equity. More concretely, we inspect the performances of the S&P 500 index and Bitcoin by comparing their returns and volatilities. As a result, we obtain the following significant findings. First, our regression analysis clarifies that for the period after the sudden appearance of COVID-19, there was a weak nexus between the S&P 500 index and Bitcoin returns. In addition, our return and return spread analysis evidences that for this period, on average, Bitcoin returns were much higher than the S&P 500 index returns. Moreover, our volatility and volatility spread analysis reveals that for this period, on average, the volatilities of Bitcoin returns were much higher than those of the S&P 500 index returns. %K Bitcoin %K Cryptocurrency %K Return %K US Equity %K Volatility %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=125533