NYM vs. MFLX
NYM (AB New York Intermediate Municipal ETF) and MFLX (First Trust Flexible Municipal High Income ETF) are both Municipal Bonds funds. Both are actively managed. A 0.54 correlation means they provide meaningful diversification when combined. NYM charges 0.27%/yr vs 0.88%/yr for MFLX.
Performance
NYM vs. MFLX - Performance Comparison
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Returns By Period
In the year-to-date period, NYM achieves a 1.55% return, which is significantly lower than MFLX's 3.93% return.
NYM
- 1D
- -0.04%
- 1M
- 0.92%
- YTD
- 1.55%
- 6M
- 1.61%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
MFLX
- 1D
- -0.03%
- 1M
- 1.97%
- YTD
- 3.93%
- 6M
- 4.06%
- 1Y
- 9.22%
- 3Y*
- 5.58%
- 5Y*
- -0.12%
- 10Y*
- —
NYM vs. MFLX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
NYM AB New York Intermediate Municipal ETF | 1.55% | 0.47% |
MFLX First Trust Flexible Municipal High Income ETF | 3.93% | 0.12% |
Correlation
The correlation between NYM and MFLX is 0.54, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Nov 10, 2025 | 0.54 |
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Return for Risk
NYM vs. MFLX — Risk / Return Rank
NYM
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
MFLX
NYM vs. MFLX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AB New York Intermediate Municipal ETF (NYM) and First Trust Flexible Municipal High Income ETF (MFLX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| NYM | MFLX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.50 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 2.97 | — |
| Martin ratioReturn relative to average drawdown | — | 11.98 | — |
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Drawdowns
NYM vs. MFLX - Drawdown Comparison
The maximum NYM drawdown since its inception was -1.76%, smaller than the maximum MFLX drawdown of -26.76%. Use the drawdown chart below to compare losses from any high point for NYM and MFLX.
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Drawdown Indicators
| NYM | MFLX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -1.76% | -26.76% | +25.00% |
Max Drawdown (1Y)Largest decline over 1 year | — | -3.11% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -8.18% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -25.88% | — |
Current DrawdownCurrent decline from peak | -0.11% | -3.22% | +3.11% |
Average DrawdownAverage peak-to-trough decline | -0.40% | -8.14% | +7.74% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 0.77% | — |
Volatility
NYM vs. MFLX - Volatility Comparison
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Volatility by Period
| NYM | MFLX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 0.99% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 3.02% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 2.03% | 4.07% | -2.04% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.03% | 10.35% | -8.32% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.03% | 11.26% | -9.23% |
NYM vs. MFLX - Expense Ratio Comparison
NYM has a 0.27% expense ratio, which is lower than MFLX's 0.88% expense ratio.
Dividends
NYM vs. MFLX - Dividend Comparison
NYM's dividend yield for the trailing twelve months is around 1.73%, less than MFLX's 4.05% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
MFLX First Trust Flexible Municipal High Income ETF | 4.05% | 4.06% | 3.81% | 3.65% | 4.27% | 3.69% | 3.21% | 2.94% | 3.74% | 3.80% | 0.98% |
NYM AB New York Intermediate Municipal ETF | 1.73% | 0.49% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
NYM and MFLX have a correlation of 0.54, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, NYM is cheaper at 0.27% per year. The better choice depends on whether you care most about return, fees, risk, or income.
NYM is cheaper with a 0.27% expense ratio, compared with 0.88% for MFLX.
MFLX has the higher dividend yield at 4.05%, compared with 1.73% for NYM.
They also come from different issuers: AllianceBernstein and First Trust. Their fees differ too: 0.27% for NYM and 0.88% for MFLX.
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