MYI vs NXP: Correlation
Blackrock MuniYield Quality Fund III, Inc (MYI) and Nuveen Select Tax Free Income Portfolio (NXP) show a moderate relationship: their 3-year correlation of weekly returns is 0.58.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MYI and NXP?
Across a 3-year window, the weekly returns of MYI and NXP correlate at 0.58, moderate. Recent behaviour matches the longer record: 0.54 over 1 year against 0.58 over 3. Stretching to 5 years gives 0.59, with an annualized covariance of 62.7 %².
By 3-year correlation, NXP places #9 of the 15 assets tracked against MYI. Their 12-month results are close: +8.7% for MYI against +6.3% for NXP.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
MYI vs NXP: side by side
| MYI (Blackrock MuniYield Quality Fund III, Inc) | NXP (Nuveen Select Tax Free Income Portfolio) | |
|---|---|---|
| 1-year return | +8.7% | +6.3% |
| 5-year return | -5.8% | +0.3% |
| Volatility (ann.) | 11.8% | 9.1% |
| Beta vs S&P 500 | 0.30 | 0.11 |
| Max drawdown (3Y) | -11.8% | -9.1% |
| Market cap | – | – |
| P/E (trailing) | 28.3 | 24.9 |
| Dividend yield | 6.20% | 4.45% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MYI | NXP |
|---|---|---|
| 2022 | -20.5% | -9.5% |
| 2023 | +8.8% | +10.7% |
| 2024 | +0.6% | +6.9% |
| 2025 | +4.8% | -2.7% |
| 2026 | +3.2% | +3.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MYI and NXP good diversifiers for each other?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between MYI and NXP?
As of 2026-08-27, the correlation of weekly returns between MYI and NXP is 0.58 over 3 years, 0.54 over 1 year and 0.59 over 5 years.
Is NXP a good diversifier for MYI?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.58 mean?
A reading of 0.58 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/myi-vs-nxp.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/myi-vs-nxp/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MYI correlations · NXP correlations
