CMU (MFS High Yield Municipal Trust)
Historical IV Rank & Volatility Regime
IV Rank measures where CMU's current 30-day implied volatility sits in its trailing 90-day distribution (0% = lowest in 90 days, 100% = highest). It's the most reliable signal for whether options on CMU are priced rich or cheap relative to its own recent regime.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
No IV-rank history is currently available for CMU. This usually
means options on CMU are thinly traded or it isn't in our tracked universe.
Browse the Vol Arb Screener for symbols
with active IV regime data.