SyntheticFi

SyntheticFi is a robo advisor that helps you get low margin rates in your existing brokerage account.

Trading box spreads? Save hours. Want to cut margin interest by 50%? Do it with one click. We automatically finds the best box spread trade, and fills out order details for you. All you need to do is to verify and click "Confirm". Why trade box spreads? You can cut your current margin interest by half with near-SOFR rates. Check out the interest rate you can get on https://app.syntheticfi.com/cob. SyntheticFi supports most major brokerages. Read more at https://www.syntheticfi.com.