Interest rates, made understandable
Understand interest rates. Understand your money.
Interactive tools that explain what your cash can earn, how interest-rate risk works, and how professional investors structure portfolios.
Educational analytics only. Not investment advice or a guarantee of returns.
Cash to Capital
Same $100,000. Very different outcomes.
Follow the same capital from idle cash to Treasuries and then to a derivatives overlay.
Step 1Checking
~0%
Step 2Broker Cash
~3%
Step 3T-Bills
~4%
Step 4Long Bonds
~5%+
Step 5T-Bills + Overlay
8–9%*
How the overlay works
Keep the collateral high quality. Be deliberate about where you take risk.
Return engine 1
Short-term U.S. Treasuries
High-quality collateral generates base income and remains the foundation of the portfolio.
Return engine 2
SOFR Futures & Options
The derivatives layer adds variable P&L. It can increase return, but it can also lose money.
Illustrative concept: ~4% collateral return + variable overlay P&L.
Interactive tools
Learn by changing the assumptions yourself.
Finance should get clearer as you go deeper — not more confusing.
“What am I earning? How liquid is my money? What risk am I actually taking?”
Learn
Start simple. Go as deep as you want.
Why interest rates matterMortgages, savings, debt and investments.
What is a Treasury bill?Short-term government borrowing in plain English.
Why bond prices fallDuration without the unnecessary jargon.
What is SOFR?The benchmark underneath a huge part of U.S. finance.