# Fidelity Long-Term Treasury Bond Index Fund (FNBGX): Mutual Fund Facts & Distributions

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- Issuer: Fidelity · Asset class: Bond
- Strategy: Passive Index · Inception: 2017-10-12

The fund generally commits a minimum of 80% of its assets to the debt instruments that constitute the Bloomberg U.S. Long Treasury Bond Index. Its portfolio typically features a dollar-weighted average maturity of ten years or more, aligning with the characteristics of its benchmark index. To replicate the returns of the Bloomberg U.S. Long Treasury Bond Index using a more focused selection of securities, the advisor employs sophisticated statistical sampling techniques. These techniques are informed by factors including duration, maturity, sensitivity to interest rate changes, the underlyi...

## Key Facts

| Metric | Value |
|---|---|
| Price | $8.74 |
| Expense Ratio | 0.03% |
| Assets Under Management | $4.81B |
| NAV | $8.74 |
| Holdings Count | — |
| Distribution Yield (TTM) | 4.22% |
| Annual Distribution (TTM) | $0.37 /share |
| Distribution Frequency | Monthly |
| 52-Week Range | $8.30 – $9.68 |
| Beta | 2.24 |

## Latest Distribution

- Amount: $0.0307 /share
- Ex-date: 2026-09-30
- Pay date: 2026-10-01

## Frequently Asked Questions

### What does FNBGX invest in?

The fund generally commits a minimum of 80% of its assets to the debt instruments that constitute the Bloomberg U.S. Long Treasury Bond Index. Its portfolio typically features a dollar-weighted average maturity of ten years or more, aligning with the characteristics of its benchmark index. To replicate the returns of the Bloomberg U.S. Long Treasury Bond Index using a more focused selection of securities, the advisor employs sophisticated statistical sampling techniques. These techniques are informed by factors including duration, maturity, sensitivity to interest rate changes, the underlying structure of the bonds, and their credit quality.

### What is the expense ratio of FNBGX?

Fidelity Long-Term Treasury Bond Index Fund (FNBGX) charges an expense ratio of 0.03%. This is the annual fee deducted from fund assets to cover management and operations.

### What is FNBGX's dividend yield?

FNBGX's trailing-twelve-month yield is 4.22%, calculated from the sum of dividends over the past year divided by the current price.

### What is the duration of FNBGX?

Effective duration measures FNBGX's sensitivity to interest-rate changes: a duration of 6 means a 1% rate move shifts NAV by roughly 6% in the opposite direction. FNBGX's current duration is published on the fund's factsheet on the issuer's website.

### What is the credit quality of FNBGX?

FNBGX's credit quality breakdown (the share of holdings rated AAA through CCC and below) is published on the fund's factsheet. Higher-quality (investment-grade) funds yield less but carry less default risk than high-yield / junk bond funds.

### What is the yield to maturity of FNBGX?

Yield to maturity (YTM) is the total return you'd earn from FNBGX if every bond in the portfolio is held to maturity at the current price. FNBGX's YTM is published on the fund's factsheet on the issuer's website. It differs from the trailing-12-month yield because YTM reflects current bond prices rather than historical income paid.

### Does FNBGX pay a dividend?

Yes, Fidelity Long-Term Treasury Bond Index Fund (FNBGX) distributes dividends to shareholders. The trailing-twelve-month yield is 4.22%. Full dividend history is on this page.

### How often does FNBGX pay dividends?

Fidelity Long-Term Treasury Bond Index Fund pays dividends Monthly. Each ex-dividend date, record date, and payment date is listed in the dividend history table on this page.

### When is FNBGX's next ex-dividend date?

The most recently announced ex-dividend date for FNBGX was 2026-09-30. The next ex-date typically follows Monthly; once announced it appears at the top of the dividend history table on this page.

### How much will FNBGX's expense ratio cost me over 30 years?

On a $10,000 investment compounding at 7% gross return, a 0.03% expense ratio quietly compounds against your balance every year. The Fee Compounding Forecast card above projects the dollar drag for any holding period and assumption you pick. The typical result for a 1.0% expense ratio on a 30-year hold is roughly 25% of the final balance lost to fees.

### How does FNBGX charge its expense ratio?

The expense ratio is deducted in tiny daily slices from FNBGX's net asset value (NAV). You never see a bill. The price quoted on every exchange is already net of fees. There's no "fee day" to avoid; the cost is continuous and built into the trading price.

### Why does FNBGX cost more than a fund like VOO?

FNBGX is a passive index fund (current expense ratio 0.03%). Differences from broad-market ETFs like VOO usually come from index licensing fees, asset class (bond funds typically run cheaper than equity), or fund scale (smaller funds spread fixed operating costs across less AUM).

### Are there cheaper alternatives to FNBGX?

The Lower-Fee Alternatives card above lists mutual funds following the same investment strategy as FNBGX (0.03%) but at a lower expense ratio. Each row shows the fee gap, the peer's AUM as a liquidity sanity-check, and a direct link to that fund's analysis page. Cheaper price doesn't automatically mean better. Verify the peer holds what you actually want.

## More on Dividend Data

- Overview (HTML): https://www.dividenddata.com/funds/fnbgx
- Distribution history: https://www.dividenddata.com/funds/fnbgx/dividend
- Holdings & diversification: https://www.dividenddata.com/funds/fnbgx/diversification
- Fees & cheaper alternatives: https://www.dividenddata.com/funds/fnbgx/expenses
- Peer comparison: https://www.dividenddata.com/funds/fnbgx/peers

Data sourced from primary filings and market data providers; see https://www.dividenddata.com/methodology.