GMCOX Performance — GuideMark Core Fixed Income Fund, Service Shares
Data updated: 2026-08-26
GMCOX returned +0.32% year to date and +3.27% over one year to Jun 2026. Annualised returns are +3.98% over 3 years and −0.41% over 5 years. The fund trailed its Intermediate Core Bond category average: $100 invested three years ago grew to $112, against $115 for the category, and to $103 over one year, against $104. Volatility over the past three years was 5.66% a year. In the 12 months to Jun 2026 the fund took in a net $12.5M, and assets reached $176.14M.
GMCOX Growth of $100
What $100 invested in GuideMark Core Fixed Income Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Core Bond category average over the same months.
| Period | GMCOX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $103 | $104 |
| 3 years (Jul 2023 – Jun 2026) | $112 | $115 |
| 5 years (Jul 2021 – Jun 2026) | $98 | $102 |
| Since data start (Jul 2019 – Jun 2026) | $106 | $112 |
GMCOX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.32% |
| 1 year | +3.27% |
| 3 years (annualised) | +3.98% |
| 5 years (annualised) | −0.41% |
GMCOX Annual Returns
Calendar-year total returns of GuideMark Core Fixed Income Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +0.32% |
| 2025 | +6.56% |
| 2024 | +1.43% |
| 2023 | +6.12% |
| 2022 | −14.61% |
| 2021 | −2.04% |
| 2020 | +8.19% |
| 2019 (Jul–Dec) | +2.13% |
GMCOX 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 | +0.2% | +1.4% | −1.9% | +0.1% | +0.2% | +0.4% | — | — | — | — | — | — |
| 2025 | +0.4% | +2.1% | −0.1% | +0.2% | −0.7% | +1.7% | −0.3% | +1.2% | +1.1% | +0.5% | +0.6% | −0.2% |
| 2024 | −0.1% | −1.3% | +1.1% | −2.6% | +1.6% | +1.2% | +1.9% | +1.6% | +1.3% | −2.5% | +0.9% | −1.5% |
| 2023 | +3.3% | −2.5% | +2.4% | +0.5% | −1.0% | −0.3% | 0.0% | −0.5% | −2.6% | −1.7% | +4.8% | +4.0% |
| 2022 | −2.2% | −1.4% | −2.8% | −4.0% | +0.4% | −2.1% | +2.6% | −2.8% | −5.0% | −1.6% | +3.6% | 0.0% |
| 2021 | −0.9% | −1.8% | −0.9% | +0.7% | +0.2% | +0.8% | +1.0% | −0.2% | −1.0% | 0.0% | +0.1% | −0.2% |
| 2020 | +1.8% | +1.5% | −1.4% | +2.6% | +0.8% | +1.0% | +1.7% | −0.8% | −0.1% | −0.4% | +1.1% | +0.1% |
| 2019 | — | — | — | — | — | — | +0.2% | +2.4% | −0.6% | +0.2% | 0.0% | −0.1% |
GMCOX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 5.66%
- 3-year Sharpe ratio: -0.09 (vs 4.5% risk-free rate)
- Best month: +4.75% (Nov 2023)
- Worst month: −2.65% (Sep 2023)
GMCOX Fund Flows
Monthly money in and out of GuideMark Core Fixed Income Fund, from SEC Form N-PORT.
- 12-month net flow: $12.5M
- 12-month gross sales (incl. reinvestments): $69.1M
- Sales ÷ redemptions: 1.22×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $6.3M | $8.7M | −$2.5M |
| May 2026 | $12.7M | $6.4M | $6.2M |
| Apr 2026 | $4.0M | $3.5M | $489K |
| Mar 2026 | $5.2M | $5.2M | $23K |
| Feb 2026 | $6.7M | $2.8M | $3.9M |
| Jan 2026 | $2.8M | $3.5M | −$741K |
| Dec 2025 | $4.5M | $5.5M | −$954K |
| Nov 2025 | $3.1M | $5.9M | −$2.8M |
| Oct 2025 | $7.1M | $5.0M | $2.1M |
| Sep 2025 | $4.1M | $4.1M | −$68K |
| Aug 2025 | $8.9M | $2.5M | $6.4M |
| Jul 2025 | $3.8M | $3.3M | $489K |
GMCOX Assets Under Management
Net assets of GuideMark Core Fixed Income Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $176.14M |
| 2026-03-31 | $172.52M |
| 2025-12-31 | $171.23M |
| 2025-09-30 | $172.90M |
| 2025-06-30 | $164.19M |
| 2025-03-31 | $167.38M |
| 2024-12-31 | $165.59M |
| 2024-09-30 | $177.12M |
| 2024-06-30 | $174.46M |
| 2024-03-31 | $172.12M |
| 2023-12-31 | $163.75M |
| 2023-09-30 | $158.60M |
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.