We can help you find the highest yielding CD rates so that you can know that your money is working harder for you. Superior Credit Union offers a wide range of CD accounts with variable terms in Cincinnati and Toledo, OH designed to help in the diversification of your investment portfolio. CDs are a safe and reliable way to save your money while earning a higher interest rate than a traditional savings account. Enjoy the Benefits of a Certificate of Deposit for Your Investment Strategy in Cincinnati and Toledo, OHĪ Certificate of Deposit (CD) is a type of savings account that has a fixed, predetermined interest rate and maturity date.