SPDR Barclays Long Term Treasury (SPTL) Bond Profile
SPTL bond portfolio
Fund statistics as of Oct 23, 2026- Yield to maturity
- 5.16% if bonds are held to maturity
- Effective duration
- 14.56 yrs ≈ 14.6% price change per 1% rate move
- Average maturity
- 22.8 yrs
- Average coupon
- 3.47% interest rate on the bonds
- Average bond price
- 75.53 per 100 of face value
- Distribution yield
- 4.70% trailing 12 months
- Current yield
- 4.60% coupon ÷ price
- Expense ratio
- 0.02%
- Turnover
- 4% a year
- Net assets
- $11.45B
Interest-rate sensitivity
SPTL has an effective duration of 14.56 years: long-term interest-rate sensitivity. Peer funds are marked below the scale.
Effective duration in years. Short-term funds have a duration under 3 years, long-term funds over 10.
What a rate change would do to SPTL
Estimate for an immediate, parallel move in yields: price change ≈ −duration × rate change; 12-month return adds the 5.16% yield to maturity. Ignores convexity and changes in credit spreads.
Where the SPTL yield comes from
Current yield = average coupon ÷ average price. Pull to par = yield to maturity − current yield. The distribution yield is what was actually paid out over the past 12 months.
SPTL vs other bond ETFs
| ETF | Fund | Duration | Maturity | YTM | Dist. yield | Expense | 1-year return |
|---|---|---|---|---|---|---|---|
| BIL | SPDR Bloomberg 1-3 Month T-Bill ETF | 0.16 | 0.2 | 3.91% | 3.63% | 0.12% | +3.8% |
| SHY | iShares 1-3 Year Treasury Bond ETF | 1.81 | 1.9 | 4.88% | 3.64% | 0.15% | +1.7% |
| HYG | iShares iBoxx $ High Yield Corporate Bond ETF | 3.26 | 5.6 | 7.97% | 6.09% | 0.48% | +1.1% |
| VGIT | Vanguard Intermediate-Term Treasury ETF | 4.70 | 5.3 | 5.36% | 4.06% | 0.04% | −1.2% |
| GOVT | iShares U.S. Treasury Bond ETF | 5.20 | 7.4 | 4.87% | 3.67% | 0.05% | −1.1% |
| IUSB | iShares Core Total USD Bond Market ETF | 5.36 | 7.9 | 5.58% | 4.44% | 0.05% | −0.9% |
| BND | Vanguard Total Bond Market ETF | 5.54 | 7.9 | 5.72% | 4.17% | 0.03% | −1.1% |
| SCHZ | Schwab U.S. Aggregate Bond ETF | 5.76 | 8.3 | 5.64% | 4.44% | 0.02% | −1.1% |
| AGG | iShares Core U.S. Aggregate Bond ETF | 5.79 | 7.9 | 5.33% | 4.30% | 0.03% | −1.1% |
| VCIT | Vanguard Intermediate-Term Corporate Bond ETF | 5.92 | 7.8 | 6.00% | 5.22% | 0.03% | −1.6% |
| TIP | iShares TIPS Bond ETF | 6.00 | 7.3 | 4.86% | 4.80% | 0.18% | −1.0% |
| IEF | iShares 7-10 Year Treasury Bond ETF | 7.06 | 8.7 | 5.08% | 4.18% | 0.14% | −2.8% |
| MUB | iShares National Muni Bond ETF | 7.29 | 12.1 | 4.56% | 3.26% | 0.04% | −0.7% |
| LQD | iShares iBoxx $ Investment Grade Corporate… | 7.79 | 12.8 | 6.48% | 4.68% | 0.14% | −3.5% |
| TLT | iShares 20+ Year Treasury Bond ETF | 14.12 | 24.8 | 5.65% | 5.00% | 0.14% | −6.7% |
| SPTL | SPDR Barclays Long Term Treasury | 14.56 | 22.8 | 5.16% | 4.70% | 0.02% | −7.5% |
Sorted by duration. Longer duration usually pays a higher yield but swings more with interest rates; corporate and high-yield funds add credit risk.
SPTL asset allocation
- Bonds
- 102.0% long positions
- Cash held
- 0.0%
- Net cash
- 0.0% held minus owed
Long positions can add up to more than 100% when the fund buys bonds for later settlement; the short cash line offsets them.
About the SPTL bond portfolio
SPDR Barclays Long Term Treasury holds a portfolio of bonds. They yield 5.16% to maturity, have an average coupon of 3.47% and an average maturity of 22.8 years. With an effective duration of 14.56 years, a one-percentage-point rise in interest rates would lower the fund's price by about 14.6%, and a fall of the same size would raise it by about as much.
Because the bonds trade at an average of 75.53 per 100 of face value, part of the expected return comes from prices drifting back to par as they mature, adding roughly 0.56% a year. The current yield is 4.60%. Over the next 12 months, rates could rise by about 0.35 percentage points before the price drop would cancel out a year of yield. The worst 12-month return in the fund's price history was −32.0%, and the worst calendar year 2022 (−29.4%).
The fund reports 102.0% of assets in bonds and a small short cash position, typical for funds that buy mortgage-backed securities through “to be announced” (TBA) forward contracts, which are paid for later.
EODHD does not publish the individual bonds held, so this page uses the fund-level statistics; the full list of bonds is on the issuer's website.
Related: SPTL chart, SPTL performance, SPTL dividends, SPTL overview.
SPTL bond profile FAQ
What is the yield to maturity of SPTL?
The bonds in SPTL have an average yield to maturity of 5.16% as of October 23, 2026. The trailing 12-month distribution yield is 4.70%.
What is the duration of SPTL?
SPTL has an effective duration of 14.56 years and an average maturity of 22.8 years, which makes it a long-term bond fund.
How do interest rates affect SPTL?
With a duration of 14.56 years, SPTL's price falls about 14.6% for every one-percentage-point rise in interest rates and rises about as much when rates fall. Higher rates also raise the yield on new bonds the fund buys.
How much can rates rise before SPTL loses money?
Over 12 months, yields could rise about 0.35 percentage points before the price decline would offset the 5.16% yield, assuming a one-time move (yield to maturity ÷ duration).