MFSB - MFS Active Exchange Traded Funds Trust - MFS Active Core Plus Bond ETF
MFSB seeks total return through an actively managed, broad portfolio of debt securities. The fund invests in US and foreign government securities, municipal instruments, mortgage- and asset-backed securities, and corporate bonds. The portfolio includes debt instruments of any geographic location, maturity, and credit quality, focusing on investment grade debts.
- Sector
- Financial Services
- Industry
- Asset Management
- Market Cap
- $536.5M
- Beta
- 0.08
- 52-Week Range
- 23.68-25.57
- Dividend Yield
- $1.15
- IPO Date
- Dec 5, 2024
- Exchange
- NYSE
MFSB Options Snapshot
Options pricing data for MFSB is refreshed daily after the close. When listed contracts exist, this page surfaces the latest at-the-money implied volatility, max pain strike, dealer gamma exposure (GEX), and 25-delta skew. Listed contracts and live snapshots appear once the options chain has been published by the exchange for the most recent session.
What This Page Covers
The MFSB overview links into per-metric analysis views: max pain, gamma exposure, volatility skew, expected move, options chain, open interest history, and aggregate Greeks. Microstructure data is available on short interest, short volume, fail-to-deliver, and market structure.
MFSB fund facts: expense ratio 0.34%, assets under management $594.5M, NAV $23.78 as of the data source's update on Oct 8, 2026, launched Dec 5, 2024, issued by MFS. See the MFSB holdings.
Frequently asked MFSB overview questions
- What is MFSB?
- MFSB is the ticker symbol for MFS Active Exchange Traded Funds Trust - MFS Active Core Plus Bond ETF, an listed exchange-traded fund. MFSB seeks total return through an actively managed, broad portfolio of debt securities. The fund invests in US and foreign government securities, municipal instruments, mortgage- and asset-backed securities, and corporate bonds. Listed on NYSE. MFSB is the ETF ticker shown on this page; ETF traders use the fund for diversified exposure to its underlying basket, for sector and factor rotation, and for hedging or replication strategies via the listed options chain.
- What are MFSB's key statistics?
- MFS Active Exchange Traded Funds Trust - MFS Active Core Plus Bond ETF (MFSB) carries a market capitalization of $536.5M, 52-week range of 23.68-25.57. Full holdings disclosure, expense ratio, and tracking-error history live on the per-ticker fundamentals page or the sponsor's site; daily NAV and premium/discount-to-NAV are accessible from the same view. These structural inputs frame how the ETF options market prices implied volatility relative to its constituents.
- What sector or industry does MFSB belong to?
- MFS Active Exchange Traded Funds Trust - MFS Active Core Plus Bond ETF operates in the Financial Services sector, in the Asset Management industry. Sector classification affects how the ticker correlates with sector ETFs, how it reacts to macro factors like rate moves and commodity prices, and how its options pricing compares to sector peers. Compare MFSB's implied volatility and skew against sector benchmarks to gauge whether the options market is pricing single-name or systemic risk relative to the broader peer group.
- How current is the MFSB data on this page?
- Options snapshots refresh after each trading session; if no snapshot is currently posted for MFSB, it usually reflects low options liquidity or a recently listed name. Fund-level fields (sponsor, expense ratio, holdings concentration where available) refresh from the vendor feed nightly. ETF-specific filings (N-CSR, N-PX, N-CEN) update on the SEC EDGAR cadence. FINRA microstructure data refreshes on the source's cadence; for ETFs the off-exchange volume signal is dominated by authorized-participant creation and redemption rather than directional flow.