TMBFX Performance — Transamerica Core Bond, Class R4
Data updated: 2026-09-28
TMBFX returned −0.68% year to date and +2.39% over one year to Jul 2026. Annualised returns are +3.54% over 3 years and −0.55% over 5 years. The fund trailed its Intermediate Core Bond category average: $100 invested three years ago grew to $111, against $113 for the category, and to $102 over one year, against $103. Volatility over the past three years was 5.51% a year. In the 12 months to Jul 2026 the fund lost a net $35.8M, and assets reached $1.68B.
TMBFX Growth of $100
What $100 invested in Transamerica Core Bond grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Core Bond category average over the same months.
| Period | TMBFX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $102 | $103 |
| 3 years (Aug 2023 – Jul 2026) | $111 | $113 |
| 5 years (Aug 2021 – Jul 2026) | $97 | $100 |
| Since data start (Aug 2019 – Jul 2026) | $106 | $110 |
TMBFX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | −0.68% |
| 1 year | +2.39% |
| 3 years (annualised) | +3.54% |
| 5 years (annualised) | −0.55% |
TMBFX Annual Returns
Calendar-year total returns of Transamerica Core Bond, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | −0.68% |
| 2025 | +6.70% |
| 2024 | +1.28% |
| 2023 | +5.70% |
| 2022 | −13.37% |
| 2021 | −1.27% |
| 2020 | +7.49% |
| 2019 (Aug–Dec) | +1.98% |
TMBFX 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 | +0.3% | +1.5% | −1.9% | +0.3% | +0.4% | +0.1% | −1.3% | — | — | — | — | — |
| 2025 | +0.5% | +2.1% | −0.2% | +0.2% | −0.6% | +1.6% | −0.1% | +1.2% | +1.0% | +0.6% | +0.7% | −0.4% |
| 2024 | −0.1% | −1.4% | +0.9% | −2.6% | +1.6% | +1.3% | +1.8% | +1.6% | +1.2% | −2.4% | +1.0% | −1.6% |
| 2023 | +3.0% | −2.3% | +2.3% | +0.5% | −1.1% | −0.1% | 0.0% | −0.6% | −2.5% | −1.6% | +4.4% | +3.8% |
| 2022 | −2.1% | −1.1% | −2.5% | −3.7% | +0.2% | −1.8% | +2.3% | −2.6% | −4.4% | −1.4% | +3.3% | −0.2% |
| 2021 | −0.7% | −1.8% | −1.0% | +0.9% | +0.4% | +0.8% | +1.1% | −0.2% | −0.8% | −0.1% | +0.2% | −0.1% |
| 2020 | +2.1% | +1.7% | −2.8% | +2.3% | +0.8% | +1.1% | +1.7% | −0.8% | 0.0% | −0.4% | +1.2% | +0.4% |
| 2019 | — | — | — | — | — | — | — | +2.6% | −0.6% | +0.3% | −0.1% | −0.2% |
TMBFX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 5.51%
- 3-year Sharpe ratio: -0.17 (vs 4.5% risk-free rate)
- Best month: +4.42% (Nov 2023)
- Worst month: −2.56% (Apr 2024)
TMBFX Fund Flows
Monthly money in and out of Transamerica Core Bond, from SEC Form N-PORT.
- 12-month net flow: −$35.8M
- 12-month gross sales (incl. reinvestments): $242.4M
- Sales ÷ redemptions: 0.87×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $21.7M | $16.1M | $5.6M |
| Jun 2026 | $25.0M | $21.2M | $3.8M |
| May 2026 | $12.9M | $12.5M | $407K |
| Apr 2026 | $41.1M | $37.0M | $4.1M |
| Mar 2026 | $11.4M | $44.8M | −$33.4M |
| Feb 2026 | $21.3M | $7.8M | $13.5M |
| Jan 2026 | $12.3M | $3.2M | $9.2M |
| Dec 2025 | $21.0M | $68.4M | −$47.4M |
| Nov 2025 | $11.4M | $16.0M | −$4.7M |
| Oct 2025 | $19.8M | $5.4M | $14.4M |
| Sep 2025 | $13.0M | $5.0M | $8.0M |
| Aug 2025 | $31.6M | $40.9M | −$9.3M |
TMBFX Assets Under Management
Net assets of Transamerica Core Bond by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $1.68B |
| 2026-04-30 | $1.70B |
| 2026-01-31 | $1.73B |
| 2025-10-31 | $1.78B |
| 2025-07-31 | $1.74B |
| 2025-04-30 | $1.65B |
| 2025-01-31 | $1.72B |
| 2024-10-31 | $1.97B |
| 2024-07-31 | $2.12B |
| 2024-04-30 | $2.11B |
| 2024-01-31 | $2.30B |
| 2023-10-31 | $2.16B |
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.