SPAB — State Street SPDR Portfolio Aggregate Bond ETF

SPAB Price Performance — Growth of $10,000

Value of a $10,000 investment in SPAB over time, compared with SPY. Both lines are rebased to $10,000 on the first shared date. Based on total returns — prices are adjusted for dividends and splits, so this assumes distributions were reinvested. Hover or tap the chart for exact values.

SPAB Drawdown

The "underwater" chart: SPAB's decline from its highest prior value at each point in time. It shows how deep past losses ran and how long the fund took to recover to break-even.

Overview

The State Street SPDR Portfolio Aggregate Bond ETF, identified by the ticker SPAB, operates within the US Bonds - Broad category managed by State Street Investment Management. This fund tracks a universe of 458 ETFs across all categories, holding an overall rank of #312 and receiving an ETFValuer grade of C with a score of 55.8 out of 100. With assets under management totaling $9.63 billion and a share price of $25.25, the fund demonstrates significant investor adoption relative to its peers. The expense ratio stands at a competitive 0.03%, while the current dividend yield is reported at 4.03%. Within its specific category of seven tracked ETFs, the fund maintains a substantial asset base that suggests broad market participation. The combination of low costs and a high yield profile positions the ETF as a cost-effective income vehicle for fixed income exposure.

Recent performance data shows a mixed trajectory across various time horizons, starting with a 1-day return of +0.32% and a 1-week gain of +0.16%. Short-term momentum shifted negatively over the past month with a -1.07% decline, followed by a -0.47% drop over three months and a -0.31% loss over six months. Year-to-date returns have remained flat at +0.08%, indicating a period of stagnation in the current calendar year. However, the fund has recovered over longer periods, posting a 1-year return of +3.44% and a 3-year return of +13.27%. This pattern illustrates a divergence where recent short-term volatility has offset gains, yet the multi-year trend remains positive. The data suggests the fund experienced a period of underperformance in the immediate past before stabilizing over the annual and triennial frames.

The fund carries a volatility label of Very Low, supported by a beta of 1.00 which indicates its price movements align closely with the broader market benchmark. Despite the low volatility classification, the Sharpe ratio is recorded at -0.42, reflecting a negative risk-adjusted return profile over the measured period. The maximum drawdown of -5.38% quantifies the largest peak-to-trough decline experienced by the fund, highlighting the extent of potential losses during downturns. A beta of 1.00 combined with a negative Sharpe ratio implies that while the fund moves in tandem with the market, it has not generated sufficient excess return to compensate for the risk taken. The Very Low volatility label suggests that these fluctuations are contained within a narrow range compared to higher-risk assets, even as the negative risk-adjusted metrics persist.

AI-generated summary based on the data on this page.

SPAB Top Holdings

Holdings as of 2026-03-31 per the fund's most recent SEC N-PORT-P filing. Top 10 holdings make up 9.3% of net assets — a rough gauge of concentration risk (the higher this figure, the more the fund's return depends on a handful of names). To see how SPAB's holdings overlap with other ETFs you own or are considering, check the Stock Overlap tool.

Which Funds Overlap With SPAB

Holding two funds that own the same companies adds cost and complexity without adding much diversification. These tracked ETFs share the most names with SPAB's top 10 — BCI overlaps most, holding 2 of the same companies as SPAB's top 10 (8.9% of SPAB's assets).

Compares the top 10 reported holdings of each fund, so it's a floor on true overlap — two S&P 500 trackers overlap ~100% even when only 10 names are listed. Use the Stock Overlap tool to search by individual company.

Market Backdrop

10-Year Treasury Yield: 4.65% (as of 2026-07-27) — The yield on 10-year US Treasury bonds — the standard "risk-free rate" benchmark used to contextualize this fund’s Sharpe ratio and returns.

CBOE Volatility Index (VIX): 18.67 (as of 2026-07-27) — A real-time gauge of expected S&P 500 volatility over the next 30 days — useful context for this fund’s own volatility label.

Federal Funds Rate: 3.63% (as of 2026-06-01) — The Federal Reserve’s target policy rate, which anchors short-term borrowing costs across the economy.

SPAB Liquidity, Domicile & Tax Treatment

Liquidity: Quoted bid/ask spread is — and average daily volume is 2.4M/day. Tighter spreads and higher volume mean lower round-trip trading costs; this is a live-market snapshot and can widen during volatile sessions. AUM of $9.63B provides ample scale, supporting tight spreads and issuer commitment to keep the fund open.

Domicile & tax treatment: SPAB is a US-domiciled, SEC-registered ('40 Act) exchange-traded fund. Dividends and capital gains distributions are reported to US investors on Form 1099-DIV, and the fund is not subject to the PFIC reporting or UCITS-specific rules that apply to Irish- or Luxembourg-domiciled funds. Non-US investors should note that US-domiciled ETFs are generally subject to 30% US withholding tax on dividends (unless reduced by treaty) and to US estate tax exposure on the position — Irish-domiciled UCITS ETFs tracking the same index often avoid both, which is why non-US residents frequently prefer the UCITS equivalent where one exists. This is general information, not tax advice — consult a tax professional for your situation.

SPAB Performance History

How SPAB Compares to Other US Bonds - Broad ETFs