GMBYX — Impact Bond Fund
Data updated: 2026-05-28
GMBYX — Impact Bond Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Total / Aggregate Bond · $92.71M AUM · 0.48% expense ratio · 2.3% 1-yr return. From SEC regulatory filings.
GMBYX Fund Overview
GMBYX — Impact Bond Fund is a US mutual fund managed by GuideStone Funds, categorised as Long Total / Aggregate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: GuideStone Funds
- Category: Long Total / Aggregate Bond
- Assets under management: $92.71M
- 1-year return: 2.3%
- Ticker: GMBYX
- SEC CIK: 0001131013
- SEC series ID: S000079509
- Share class ID: C000240564
GMBYX Holdings
Top 10 holdings of Impact Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Guidestone Funds | 6.67% |
| Federal National Mortgage Association | 2.95% |
| United States Treasury Bonds | 2.65% |
| United States Treasury Bonds | 1.98% |
| United States Treasury Bonds | 1.63% |
| Federal Home Loan Mortgage Corp. | 1.55% |
| United States Treasury Bonds | 1.55% |
| United States Treasury Notes | 1.52% |
| United States Treasury Notes | 1.51% |
| Agilent Technologies Inc. | 1.50% |
GMBYX Portfolio Allocation
Asset-class allocation of Impact Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 55.0% |
| Securitized | 41.5% |
| Cash & Equivalents | 7.6% |
GMBYX Performance
Total returns for GMBYX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.3% |
| 1 year | 2.3% |
| 3 years (annualised) | 3.0% |
GMBYX Risk Information
Risk metrics for GMBYX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.5%
GMBYX Costs and Fees
GMBYX costs about $48 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.48%
- Gross expense ratio: 0.72%
- Portfolio turnover: 114%
- Brokerage commissions: 0.08 bps of average net assets (SEC N-CEN)
GMBYX Cashflows
Over the 12 months to 2026-03, Impact Bond Fund had net inflows of $7.23M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$833.11K |
| 2026-02 | $970.89K |
| 2026-01 | −$257.93K |
| 2025-12 | $458.39K |
| 2025-11 | $394.16K |
| 2025-10 | $558.51K |
GMBYX Debt Constituents
Largest debt holdings of Impact Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury Bonds | 2.65% |
| United States Treasury Bonds | 1.98% |
| United States Treasury Bonds | 1.63% |
| United States Treasury Bonds | 1.55% |
| United States Treasury Notes | 1.52% |
| United States Treasury Notes | 1.51% |
| Agilent Technologies Inc. | 1.50% |
| Amgen Inc. | 1.42% |
| American Water Capital Corp | 1.38% |
| United States Treasury Bonds | 1.35% |
GMBYX Prospectus and SEC Filings
Official Impact Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Total / Aggregate Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.