IBGM holds U.S. Treasury bonds that all mature in December 2056, functioning like a 30-year Treasury bond that gets one year shorter each year. This target-maturity structure lets investors lock in today's long-term rates while knowing exactly when they'll get their principal back.
How It Works
The fund buys Treasuries maturing between July and December 2056, creating a defined endpoint unlike traditional bond funds that perpetually roll maturities. As 2056 approaches, the portfolio naturally shortens in duration, reducing interest rate sensitivity. Upon maturity, the fund liquidates and returns cash to shareholders, eliminating reinvestment risk at that future date.
Key Features
- Built-in maturity date eliminates guesswork about when to exit long-duration Treasury positions
- Currently offers 30-year Treasury exposure that automatically de-risks as maturity approaches
- Zero expense ratio makes this cheaper than buying individual Treasuries through most brokers
Risks
- 30-year duration means a 1% rate rise could drop the fund 20-25% in the near term
- Locked into 2056 maturity — can't extend duration if rates fall or shorten if rates spike
- Early liquidation before 2056 exposes you to full interest rate risk without the maturity guarantee
Who Should Own This
Perfect for investors with a specific 2056 liability — think parents of toddlers planning college expenses or 35-year-olds targeting retirement at 65. Also works for those wanting to lock in current long rates without managing individual Treasury bonds. The defined maturity makes this a precision tool, not a general duration play.