SSBIX Performance — State Street Balanced Index Fund, Class K
Data updated: 2026-08-28
SSBIX returned +7.05% year to date and +15.26% over one year to Jun 2026. Over one year the fund trailed its US Multi-Cap Blend category average: $100 grew to $115, against $116 for the category. Volatility over the past 12 months was 8.21% a year. In the 12 months to Jun 2026 the fund lost a net $23.3M, and assets reached $618.18M.
SSBIX Growth of $100
What $100 invested in State Street Balanced Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Multi-Cap Blend category average over the same months.
| Period | SSBIX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $115 | $116 |
| Since data start (Oct 2023 – Jun 2026) | $157 | $147 |
SSBIX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +7.05% |
| 1 year | +15.26% |
| 3 years (annualised) | +17.81% |
SSBIX Annual Returns
Calendar-year total returns of State Street Balanced Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +7.05% |
| 2025 | +13.22% |
| 2024 | +14.00% |
| 2023 (Oct–Dec) | +13.59% |
SSBIX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +1.0% | +0.3% | −3.7% | +6.3% | +3.3% | −0.1% | — | — | — | — | — | — |
| 2025 | +2.0% | −0.3% | −3.5% | −0.3% | +3.6% | +3.7% | +1.3% | +1.8% | +2.5% | +1.5% | +0.4% | −0.1% |
| 2024 | +0.6% | +2.6% | +2.3% | −3.6% | +3.6% | +2.3% | +2.0% | +1.8% | +1.4% | −1.5% | +4.4% | −2.5% |
| 2023 | — | — | — | — | — | — | — | — | — | +1.0% | +7.4% | +4.7% |
SSBIX Risk
Risk measures from monthly returns over Jul 2025 – Jun 2026.
- 1-year volatility (annualised): 8.21%
- Best month: +6.35% (Apr 2026)
- Worst month: −3.66% (Mar 2026)
SSBIX Fund Flows
Monthly money in and out of State Street Balanced Index Fund, from SEC Form N-PORT.
- 12-month net flow: −$23.3M
- 12-month gross sales (incl. reinvestments): $101.6M
- Sales ÷ redemptions: 0.81×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $10.4M | $16.1M | −$5.7M |
| May 2026 | $4.7M | $15.3M | −$10.6M |
| Apr 2026 | $4.4M | $9.8M | −$5.4M |
| Mar 2026 | $8.1M | $7.7M | $411K |
| Feb 2026 | $4.5M | $9.5M | −$5.0M |
| Jan 2026 | $4.6M | $10.8M | −$6.2M |
| Dec 2025 | $27.2M | $15.2M | $12.1M |
| Nov 2025 | $8.7M | $10.5M | −$1.8M |
| Oct 2025 | $3.9M | $8.6M | −$4.7M |
| Sep 2025 | $7.0M | $7.1M | −$157K |
| Aug 2025 | $9.0M | $8.0M | $1.1M |
| Jul 2025 | $9.0M | $6.4M | $2.6M |
SSBIX Assets Under Management
Net assets of State Street Balanced Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $618.18M |
| 2026-03-31 | $583.77M |
| 2025-12-31 | $608.66M |
| 2025-09-30 | $611.62M |
| 2025-06-30 | $574.97M |
| 2025-03-31 | $547.01M |
| 2024-12-31 | $560.84M |
| 2024-09-30 | $128.27M |
| 2024-06-30 | $25.20M |
| 2024-03-31 | $24.72M |
| 2023-12-31 | $22.61M |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.