What this driver is
When bond yields rise, every future cash flow is worth less in present value terms. That matters most for long-duration assets: growth stocks, technology companies with earnings far in the future, and rate-sensitive sectors like real estate. Rising yields also raise borrowing costs for companies and consumers, which eventually slows economic activity.
What activates it
The engine watches the intermediate Treasury ETF (IEF). When IEF posts a negative five-day return, yields are rising (bond prices and yields move inversely). The size of the move and the direction determine whether the driver activates.
What it connects to
Rising yields create headwinds for:
- Real estate — property values are sensitive to cap rates, which move with yields; REITs compress
- High-multiple growth stocks — the discount rate increase hits future earnings hardest
- Consumer borrowing — mortgage rates, auto loans, and credit card rates track yields
Rising yields can benefit:
- Banks — net interest margin expands when the yield curve steepens
- Short-duration value stocks — less sensitive to the discount rate
The bond market signal
The Treasury market is the largest and most liquid in the world. When bond yields are moving, it is usually because the market is reassessing either inflation or growth expectations, or both. Understanding why yields are rising matters as much as knowing that they are.
If yields rise because growth is strong, the signal is different from yields rising because inflation is re-accelerating. The engine's macro event layer reads central bank communications and inflation data releases to add context to the raw price signal.
How Decifer tracks it
IEF five-day returns are computed each cycle. A negative return (prices falling, yields rising) triggers the driver. The macro event layer adds confirmation via central bank rate decision classifications and inflation data events.