THIGX Performance — Thornburg Small/Mid Cap Growth Fund, Class I
Data updated: 2026-08-24
THIGX returned +12.92% year to date and +21.60% over one year to Jun 2026. Annualised returns are +13.00% over 3 years and +1.29% over 5 years. Against its US Mid-Cap Growth category average the fund came out behind over three years but ahead over one: $100 invested three years ago grew to $144, against $152 for the category, and to $122 over one year, against $118. Volatility over the past three years was 19.46% a year. In the 12 months to Jun 2026 the fund lost a net $26.1M, and assets reached $237.47M.
THIGX Growth of $100
What $100 invested in Thornburg Small/Mid Cap Growth Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Mid-Cap Growth category average over the same months.
| Period | THIGX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $122 | $118 |
| 3 years (Jul 2023 – Jun 2026) | $144 | $152 |
| 5 years (Jul 2021 – Jun 2026) | $107 | $129 |
| Since data start (Jul 2019 – Jun 2026) | $164 | $203 |
THIGX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +12.92% |
| 1 year | +21.60% |
| 3 years (annualised) | +13.00% |
| 5 years (annualised) | +1.29% |
THIGX Annual Returns
Calendar-year total returns of Thornburg Small/Mid Cap Growth Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +12.92% |
| 2025 | +4.81% |
| 2024 | +20.20% |
| 2023 | +20.17% |
| 2022 | −33.87% |
| 2021 | −3.98% |
| 2020 | +42.10% |
| 2019 (Jul–Dec) | +6.34% |
THIGX 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 | −1.3% | −0.4% | −5.2% | +13.1% | +7.0% | +0.1% | — | — | — | — | — | — |
| 2025 | +3.7% | −8.8% | −10.0% | −0.2% | +8.2% | +5.9% | +1.2% | +2.2% | +2.0% | +3.5% | +2.2% | −3.5% |
| 2024 | +0.5% | +9.8% | +3.1% | −6.2% | +4.1% | −0.4% | +2.4% | +2.7% | +0.4% | −1.2% | +10.1% | −5.3% |
| 2023 | +8.4% | −3.2% | +1.6% | +1.3% | −0.1% | +9.8% | +1.2% | −1.5% | −5.1% | −9.2% | +8.6% | +8.7% |
| 2022 | −14.9% | +1.2% | −1.0% | −13.4% | −4.9% | −8.7% | +11.1% | −1.7% | −8.0% | +5.7% | +3.3% | −5.9% |
| 2021 | 0.0% | +1.9% | −6.4% | +6.6% | −4.2% | +4.5% | +1.7% | +0.9% | −3.8% | +5.4% | −8.4% | −1.1% |
| 2020 | +3.6% | −4.6% | −11.7% | +13.8% | +9.9% | +4.8% | +5.9% | +7.5% | −4.6% | −2.2% | +11.4% | +5.0% |
| 2019 | — | — | — | — | — | — | +2.2% | −3.0% | −1.2% | +1.7% | +5.2% | +1.6% |
THIGX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 19.46%
- 3-year Sharpe ratio: 0.44 (vs 4.5% risk-free rate)
- Best month: +13.12% (Apr 2026)
- Worst month: −10.04% (Mar 2025)
THIGX Fund Flows
Monthly money in and out of Thornburg Small/Mid Cap Growth Fund, from SEC Form N-PORT.
- 12-month net flow: −$26.1M
- 12-month gross sales (incl. reinvestments): $102.3M
- Sales ÷ redemptions: 0.80×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $3.5M | $2.0M | $1.5M |
| May 2026 | $4.2M | $2.6M | $1.6M |
| Apr 2026 | $89.6M | $93.0M | −$3.3M |
| Mar 2026 | $551K | $2.5M | −$2.0M |
| Feb 2026 | $479K | $3.4M | −$3.0M |
| Jan 2026 | $463K | $3.9M | −$3.5M |
| Dec 2025 | $689K | $3.7M | −$3.0M |
| Nov 2025 | $336K | $3.2M | −$2.9M |
| Oct 2025 | $882K | $3.0M | −$2.1M |
| Sep 2025 | $641K | $4.4M | −$3.8M |
| Aug 2025 | $423K | $3.2M | −$2.8M |
| Jul 2025 | $568K | $3.5M | −$2.9M |
THIGX Assets Under Management
Net assets of Thornburg Small/Mid Cap Growth Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $237.47M |
| 2026-03-31 | $195.56M |
| 2025-12-31 | $216.55M |
| 2025-09-30 | $219.98M |
| 2025-06-30 | $218.02M |
| 2025-03-31 | $208.67M |
| 2024-12-31 | $274.70M |
| 2024-09-30 | $275.61M |
| 2024-06-30 | $268.58M |
| 2024-03-31 | $283.60M |
| 2023-12-31 | $257.48M |
| 2023-09-30 | $270.03M |
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.