Interest Rates and Bond Markets
Interest rates are the most important variable in all of finance. Every asset class - stocks, forex, commodities, real estate - is ultimately influenced by the level and direction of interest rates.
How Interest Rates Work
The Risk-Free Rate
- Government bond yields set the baseline for all investments
- US 10-year Treasury yield is the global benchmark
- All other assets are priced as a spread above this rate
- Higher risk-free rate = higher hurdle for all investments
The Yield Curve
- Plot of interest rates across different maturities
- Normal: Upward sloping (longer term = higher rate)
- Flat: Similar rates across maturities
- Inverted: Short-term rates higher than long-term (recession signal)
- An inverted yield curve has predicted every US recession since 1955
How Rates Are Set
- Short-term rates: Controlled by the central bank (Fed Funds Rate)
- Long-term rates: Set by the bond market (supply and demand)
- Central bank influences short end directly
- Inflation expectations drive the long end
Bond Market Fundamentals
Bond Prices and Yields
- Bond prices move INVERSELY to yields
- When rates rise, existing bond prices FALL
- When rates fall, existing bond prices RISE
- This is the most important relationship to understand
Why This Inverse Relationship?
- A bond pays a fixed coupon (e.g., 3% on $1,000 = $30/year)
- If new bonds pay 5%, your 3% bond is less attractive
- Your bond's price must drop so its yield equals the new market rate
- $30 annual coupon / $600 price = 5% yield (price dropped from $1,000 to $600)
Duration and Sensitivity
- Duration measures how sensitive a bond is to rate changes
- Longer duration = more price sensitivity
- A bond with 10-year duration drops ~10% for each 1% rate increase
- Short-duration bonds are safer in rising rate environments
The Yield Curve as a Predictor
Normal Yield Curve
- Economy is healthy and growing
- Banks can profit from lending (borrow short, lend long)
- Credit flows freely through the economy
- Positive for stocks and risk assets
Flat Yield Curve
- Transition period - economy may be changing direction
- Banks' lending margins compressed
- Credit conditions tightening
- Watch for further flattening or inversion
Inverted Yield Curve
- The market expects rates to be LOWER in the future
- This means the market expects economic weakness or recession
- Historically the most reliable recession predictor
- The lag between inversion and recession: 6-24 months
How Interest Rates Affect Markets
Stocks
- Rising rates: Negative for growth stocks (future earnings worth less)
- Rising rates: Can be positive for banks (wider lending margins)
- Falling rates: Positive for growth/tech stocks
- Rate of change matters more than absolute level
Forex
- Higher rates attract foreign capital
- Rate differentials drive currency pairs
- A country raising rates faster = stronger currency
- Carry trade: Borrow low-rate currency, invest in high-rate currency
Gold
- Inverse relationship with REAL interest rates
- Real rate = Nominal rate minus Inflation
- Negative real rates = very bullish for gold
- Gold competes with bonds as a "safe" asset
Real Estate
- Mortgage rates directly tied to bond yields
- Higher rates = less affordable housing
- Lower rates = housing boom
- REITs behave like long-duration bonds
Trading Bond Markets
Key Instruments
- Treasury futures (ZB, ZN, ZF, ZT)
- Bond ETFs: TLT (long), IEF (intermediate), SHY (short)
- Inverse bond ETFs: TBT (for betting on rising rates)
Key Data to Watch
- FOMC rate decisions and dot plot
- CPI and PCE inflation data
- Employment data (NFP)
- Treasury auction results
- Yield curve shape changes
Key Takeaways
- Bond prices move inversely to interest rates
- The yield curve predicts recessions when it inverts
- Interest rate differentials drive currency markets
- Real interest rates (not nominal) matter most for gold
- Every asset class is ultimately influenced by interest rate levels