You have run a regression of monthly returns on TXBT, a large biotechnology firm, against monthly returns on the S&P 500 index, and come up with the following output

R_Stock= 0.52% + 2.49 x R_Market

R²= 0.2

The current one-year Treasury bill rate is 2.8 and the current thirty-year bond rate is 8.3%. The firm has 198 million shares outstanding, selling for $99.83 per share. The current tax rate is 00.2. The debt to equity ratio is 0.6. What is the unlevered beta for the equity of TXBT?