MSTAX Performance — NYLI MacKay Short Term Muni Fund, Class A
Data updated: 2026-09-23
MSTAX returned +0.71% year to date and +2.45% over one year to Jul 2026. Annualised returns are +3.29% over 3 years and +1.40% over 5 years. Against its Short-Term Municipal Bond category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $110, against $110 for the category, and to $102 over one year, against $103. Volatility over the past three years was 2.03% a year. In the 12 months to Jul 2026 the fund took in a net $393.2M, and assets reached $1.37B.
MSTAX Growth of $100
What $100 invested in NYLI MacKay Short Term Muni Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Short-Term Municipal Bond category average over the same months.
| Period | MSTAX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $102 | $103 |
| 3 years (Aug 2023 – Jul 2026) | $110 | $110 |
| 5 years (Aug 2021 – Jul 2026) | $107 | $108 |
| Since data start (Aug 2019 – Jul 2026) | $111 | $112 |
MSTAX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.71% |
| 1 year | +2.45% |
| 3 years (annualised) | +3.29% |
| 5 years (annualised) | +1.40% |
MSTAX Annual Returns
Calendar-year total returns of NYLI MacKay Short Term Muni Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +0.71% |
| 2025 | +4.39% |
| 2024 | +2.50% |
| 2023 | +3.68% |
| 2022 | −3.55% |
| 2021 | +0.14% |
| 2020 | +2.17% |
| 2019 (Aug–Dec) | +0.50% |
MSTAX 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 | +0.6% | +0.6% | −1.0% | +0.4% | +0.4% | +0.2% | −0.4% | — | — | — | — | — |
| 2025 | +0.5% | +0.6% | −0.2% | −0.1% | +0.5% | +0.7% | +0.6% | +0.6% | +0.5% | +0.1% | +0.2% | +0.4% |
| 2024 | 0.0% | 0.0% | 0.0% | −0.3% | +0.1% | +0.7% | +0.9% | +0.8% | +0.6% | −0.7% | +0.6% | −0.3% |
| 2023 | +1.2% | −0.9% | +0.9% | −0.1% | −0.3% | +0.5% | +0.1% | −0.1% | −1.0% | 0.0% | +2.1% | +1.1% |
| 2022 | −1.1% | −0.4% | −1.3% | −1.0% | +0.7% | −0.4% | +1.1% | −1.2% | −1.5% | −0.3% | +1.6% | +0.2% |
| 2021 | +0.3% | −0.4% | +0.1% | +0.2% | +0.1% | +0.1% | +0.2% | −0.2% | −0.3% | −0.2% | +0.1% | −0.1% |
| 2020 | +0.4% | +0.2% | −1.0% | −0.1% | +1.1% | +0.4% | +0.5% | +0.1% | +0.1% | −0.1% | +0.4% | +0.3% |
| 2019 | — | — | — | — | — | — | — | +0.2% | −0.2% | +0.2% | 0.0% | +0.2% |
MSTAX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 2.03%
- 3-year Sharpe ratio: -0.60 (vs 4.5% risk-free rate)
- Best month: +2.13% (Nov 2023)
- Worst month: −1.03% (Mar 2026)
MSTAX Fund Flows
Monthly money in and out of NYLI MacKay Short Term Muni Fund, from SEC Form N-PORT.
- 12-month net flow: $393.2M
- 12-month gross sales (incl. reinvestments): $840.1M
- Sales ÷ redemptions: 1.88×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $47.1M | $38.2M | $8.9M |
| Jun 2026 | $40.5M | $37.9M | $2.6M |
| May 2026 | $72.0M | $49.6M | $22.4M |
| Apr 2026 | $54.0M | $49.8M | $4.2M |
| Mar 2026 | $64.6M | $31.6M | $33.1M |
| Feb 2026 | $81.7M | $29.4M | $52.4M |
| Jan 2026 | $78.5M | $51.2M | $27.3M |
| Dec 2025 | $118.5M | $30.2M | $88.3M |
| Nov 2025 | $51.4M | $24.3M | $27.1M |
| Oct 2025 | $80.7M | $25.1M | $55.5M |
| Sep 2025 | $81.9M | $47.5M | $34.4M |
| Aug 2025 | $69.2M | $32.1M | $37.1M |
MSTAX Assets Under Management
Net assets of NYLI MacKay Short Term Muni Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $1.37B |
| 2026-04-30 | $1.34B |
| 2026-01-31 | $1.26B |
| 2025-10-31 | $1.11B |
| 2025-07-31 | $981.81M |
| 2025-04-30 | $908.52M |
| 2025-01-31 | $848.07M |
| 2024-10-31 | $798.53M |
| 2024-07-31 | $748.17M |
| 2024-04-30 | $771.47M |
| 2024-01-31 | $815.04M |
| 2023-10-31 | $872.81M |
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.