Returns
| Series | 1 week | 1 month | 3 months | 6 months | YTD | 1 year | 3 years (ann.) | 5 years (ann.) | 10 years (ann.) | Since inception (ann.) |
|---|---|---|---|---|---|---|---|---|---|---|
| Market-price return | +0.53% | -7.12% | -14.00% | -14.39% | -12.42% | -14.31% | -0.31% | -8.19% | -3.95% | -2.08% |
| Market-price total return | +0.53% | -6.61% | -12.65% | -11.70% | -8.30% | -8.92% | +5.67% | -3.11% | +1.04% | +3.52% |
| NAV return | +2.33% | -4.52% | -11.34% | -11.11% | -10.96% | -11.71% | -2.72% | -7.05% | -3.44% | -1.52% |
| NAV total return | +2.33% | -4.04% | -10.04% | -8.53% | -7.08% | -6.56% | +2.62% | -2.38% | +1.17% | +4.04% |
Performance through Oct 14, 2026. Price and NAV returns are simple changes; total returns reinvest each distribution at the series value on its ex-date (first observation on/after). Periods of one year or less are cumulative; longer periods are annualised. Series are built from unadjusted prices plus the distribution record so no distribution is counted twice. Corporate actions: the vendor price series is split-adjusted; rights offerings and mergers are not restated — check Corporate Actions.
Growth of $10,000, five years
Risk statistics
| Statistic | Market price | NAV | Specification |
|---|---|---|---|
| Volatility, 1 year | 0.10% | 0.07% | annualised SD of daily total returns, √252 |
| Volatility, 3 years | 0.10% | 0.09% | as above |
| Volatility, 5 years | 0.11% | 0.08% | as above |
| Maximum drawdown, 3 years | -13.73% | -13.00% | peak-to-trough on the total-return index |
| Sharpe ratio, 3 years | 0.17 | -0.14 | excess over FRED DGS3MO (window average) (avg 4.52%), annualised |
| Sortino ratio, 3 years | 0.24 | -0.18 | downside deviation of excess returns |
| Beta vs. benchmark proxy, 3 years | 0.27 | — | SPY (U.S. equity ETF proxy), daily, aligned dates |
| Correlation, 3 years | 0.40 | — | as above |
| Observations (3y) | 751 | — | minimum 60; rankings require 500 |
Market-price and NAV volatility are different quantities and are never mixed. NAV volatility for funds holding stale-marked or illiquid assets can understate economic risk.
CEF Explorer research page for BlackRock MuniYield Quality Fund III, Inc.. Figures carry their own dates and sources; a discount to NAV does not guarantee convergence or any return. This is not investment advice.