FBND delivers the entire U.S. investment-grade bond market in one trade, covering Treasuries, corporates, mortgage-backed securities, and government-related debt. It's Fidelity's answer to the bond index fund wars, priced to compete directly with Vanguard and iShares.

How It Works

The fund tracks the Bloomberg U.S. Universal Bond Index, casting a wider net than typical aggregate bond funds by including dollar-denominated bonds from foreign issuers. It maintains intermediate duration around 6 years and tilts toward higher-quality credits, with roughly 70% in AAA/AA securities. The portfolio rebalances monthly to capture new issues and maintain sector weights.

Key Features

  • Broader than typical core bond funds — includes dollar bonds from foreign governments and corps
  • Rock-bottom expenses make it cheaper to own than most bond mutual funds
  • Monthly distributions provide steady income flow for retirees and income investors

Risks

  • Duration of 6 years means a 1% rate spike drops NAV by roughly 6% — painful in rising rate environments
  • Credit spreads can widen during recessions, hitting the 30% corporate allocation harder than Treasuries
  • Mortgage-backed securities face prepayment risk when rates fall, capping upside vs pure government bonds

Who Should Own This

Built for investors who want their entire bond allocation in one holding — think 401(k) participants or anyone building a simple three-fund portfolio. Also works as a volatility dampener for stock-heavy portfolios, though investors convinced rates will rise sharply should consider shorter-duration alternatives.