GMXAX Performance — Nationwide Mid Cap Market Index Fund, Class A
Data updated: 2026-09-18
GMXAX returned +14.21% year to date and +20.26% over one year to Jul 2026. Annualised returns are +12.25% over 3 years and +7.77% over 5 years. Against its US Mid-Cap Blend category average the fund came out behind over three years but ahead over one: $100 invested three years ago grew to $141, against $144 for the category, and to $120 over one year, against $119. Volatility over the past three years was 15.89% a year. In the 12 months to Jul 2026 the fund lost a net $83.1M, and assets reached $479.75M.
GMXAX Growth of $100
What $100 invested in Nationwide Mid Cap Market Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Mid-Cap Blend category average over the same months.
| Period | GMXAX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $120 | $119 |
| 3 years (Aug 2023 – Jul 2026) | $141 | $144 |
| 5 years (Aug 2021 – Jul 2026) | $145 | $145 |
| Since data start (Aug 2019 – Jul 2026) | $203 | $204 |
GMXAX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +14.21% |
| 1 year | +20.26% |
| 3 years (annualised) | +12.25% |
| 5 years (annualised) | +7.77% |
GMXAX Annual Returns
Calendar-year total returns of Nationwide Mid Cap Market Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +14.21% |
| 2025 | +6.78% |
| 2024 | +13.18% |
| 2023 | +15.63% |
| 2022 | −13.59% |
| 2021 | +23.93% |
| 2020 | +12.79% |
| 2019 (Aug–Dec) | +5.41% |
GMXAX 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 | +4.0% | +4.1% | −5.4% | +7.7% | +2.4% | +3.5% | −2.4% | — | — | — | — | — |
| 2025 | +3.8% | −4.4% | −5.5% | −2.3% | +5.4% | +3.5% | +1.6% | +3.4% | +0.3% | −0.5% | +2.0% | 0.0% |
| 2024 | −1.8% | +5.9% | +5.5% | −6.1% | +4.3% | −1.6% | +5.7% | −0.1% | +1.1% | −0.8% | +8.8% | −7.2% |
| 2023 | +9.2% | −1.8% | −3.3% | −0.9% | −3.3% | +9.1% | +4.1% | −2.9% | −5.3% | −5.4% | +8.5% | +8.6% |
| 2022 | −7.3% | +1.1% | +1.3% | −7.2% | +0.7% | −9.7% | +10.8% | −3.1% | −9.3% | +10.5% | +6.1% | −5.6% |
| 2021 | +1.4% | +6.8% | +4.7% | +4.4% | +0.2% | −1.1% | +0.3% | +1.9% | −4.1% | +5.8% | −3.0% | +5.0% |
| 2020 | −2.7% | −9.5% | −20.4% | +14.1% | +7.3% | +1.2% | +4.6% | +3.5% | −3.4% | +2.2% | +14.2% | +6.5% |
| 2019 | — | — | — | — | — | — | — | −4.2% | +3.0% | +1.1% | +3.0% | +2.7% |
GMXAX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 15.89%
- 3-year Sharpe ratio: 0.49 (vs 4.5% risk-free rate)
- Best month: +8.80% (Nov 2024)
- Worst month: −7.19% (Dec 2024)
GMXAX Fund Flows
Monthly money in and out of Nationwide Mid Cap Market Index Fund, from SEC Form N-PORT.
- 12-month net flow: −$83.1M
- 12-month gross sales (incl. reinvestments): $106.8M
- Sales ÷ redemptions: 0.56×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $4.4M | $7.0M | −$2.6M |
| Jun 2026 | $4.1M | $12.2M | −$8.2M |
| May 2026 | $3.5M | $7.2M | −$3.7M |
| Apr 2026 | $10.5M | $12.3M | −$1.8M |
| Mar 2026 | $3.7M | $7.2M | −$3.5M |
| Feb 2026 | $3.9M | $7.4M | −$3.5M |
| Jan 2026 | $3.3M | $59.6M | −$56.3M |
| Dec 2025 | $57.7M | $11.4M | $46.3M |
| Nov 2025 | $3.6M | $33.5M | −$30.0M |
| Oct 2025 | $6.5M | $7.9M | −$1.3M |
| Sep 2025 | $2.4M | $12.8M | −$10.5M |
| Aug 2025 | $3.3M | $11.3M | −$8.0M |
GMXAX Assets Under Management
Net assets of Nationwide Mid Cap Market Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $479.75M |
| 2026-04-30 | $478.41M |
| 2026-01-31 | $459.83M |
| 2025-10-31 | $524.66M |
| 2025-07-31 | $527.93M |
| 2025-04-30 | $486.88M |
| 2025-01-31 | $599.58M |
| 2024-10-31 | $609.97M |
| 2024-07-31 | $618.14M |
| 2024-04-30 | $579.17M |
| 2024-01-31 | $572.03M |
| 2023-10-31 | $580.46M |
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.