State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB) Options Chain
The options chain displays all available contracts with real-time quotes, Greeks, volume, and open interest for each strike and expiration. It is the primary tool for options trade selection.
State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB) operates in the Financial Services sector, specifically the Asset Management - Bonds industry, with a market capitalization near $6.91B, listed on AMEX, carrying a beta of 1.14 to the broader market. The State Street SPDR Portfolio Mortgage Backed Bond ETF seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of the Bloomberg U. public since 2009-01-30.
Snapshot as of May 29, 2026.
- Spot Price
- $22.34
- Total OI
- 3
- Total Volume
- 0
- Front Expiration
- 20 days
- Second Expiration
- 49 days
- ATM IV
- 43.2%
- Avg Bid/Ask Spread
- 66.93%
As of May 29, 2026, State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB) has 3 open contracts and 0 contracts traded. The nearest expiration is 20 days out, followed by 49 days. ATM implied volatility is 43.2%. Average bid/ask spread across the chain is 66.93%: wider spreads, size positions conservatively. The options chain aggregates every listed strike and expiration, letting traders evaluate skew, term structure, and liquidity in a single view.
How SPMB options chain Data Feeds Strategy Selection
Strategy selection on State Street SPDR Portfolio Mortgage Backed Bond ETF options does not derive from any single metric in isolation. The options chain view above sits inside a broader read: ATM IV currently sits at 43.2% and dealer gamma exposure is negative, so dealer hedging amplifies directional moves. Combine the options chain data here with the volatility-skew surface, dealer-gamma exposure, max-pain level, and upcoming-events calendar to build a positioning thesis. Risk-defined structures (credit spreads, debit spreads, iron condors) are usually safer than naked positions while the regime is uncertain; the data on this page anchors the inputs but does not by itself constitute a trade thesis.
How to read the SPMB chain depth
The listed-expirations table above shows every expiration available for State Street SPDR Portfolio Mortgage Backed Bond ETF options with its days-to-expiration count and ATM implied volatility. Front-month expirations carry the most volume, the highest gamma, and the tightest bid-ask spreads; longer-dated tenors carry less liquidity but more vega exposure. SPMB front expiration sits at 20 days - the typical hedging horizon for monthly options. The backwardated slope of -0.199 means near-dated IV is pricing acute event risk.
SPMB chain mechanics and execution
Options are listed at standardized strike intervals (typically $1 for sub-$25 underlyings, $2.50-$5 for mid-cap, $10-$50 for large-cap), and the deltas of each listed strike are determined by where IV lies relative to the strike's moneyness. Average bid/ask spread on the SPMB chain is 66.93% - a measure of liquidity. Tighter spreads on liquid strikes mean lower transaction costs; wider spreads on long-dated or far-OTM strikes mean execution drag can dominate the math. The chain table on the SPA side shows the full per-strike, per-expiration grid; this SSR page summarizes the listed expirations and the front-month context to anchor the structural read.
Using the SPMB chain to build structures
Strategy selection starts with the chain: directional theses use single-leg calls or puts, range-bound theses use credit spreads or iron condors, vol theses use straddles or strangles, calendar theses use diagonal spreads. SPMB's current 12.39% expected move anchors wing placement - structures with wings at the implied band collect the modal-outcome premium under lognormal assumptions. Cross-reference with the gamma-exposure profile to understand where dealer hedging will reinforce or fight your position, and with the volatility-skew chart to confirm the strikes you're trading sit at the IV levels your strategy assumes.
Learn how the options chain is reported and how to read the data →
SPMB listed expirations
Per-expiration ATM implied volatility for SPMB options. Each row is one listed expiration with its days-to-expiration count and ATM IV pulled from the same term-structure feed that powers the SPA's expiration filter. Front-month expirations carry the highest gamma, the tightest bid-ask spreads, and the most volume; longer-dated tenors carry less liquidity but more vega.
| Expiration | DTE | ATM IV |
|---|---|---|
| Jun 18, 2026 | 20 | 43.2% |
| Jul 17, 2026 | 49 | 23.3% |
| Aug 21, 2026 | 84 | 23.2% |
| Nov 20, 2026 | 175 | 30.5% |
Frequently asked SPMB options chain questions
- What does the SPMB options chain show right now?
- As of May 29, 2026, State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB) has 3 contracts outstanding and 0 traded today, with ATM IV of 43.2%. The full chain spans every listed strike and expiration with bid/ask, Greeks, volume, and open interest per contract.
- What expirations are available for SPMB options?
- The nearest expiration is 20 days out, followed by 49 days. Listed expirations typically extend monthly with weeklies between, plus LEAPS one to two years out for liquid names.
- How tight are SPMB options bid/ask spreads?
- Average bid/ask spread across the chain is 66.93%. Wider spreads warrant conservative sizing; mid-market fills are unreliable for retail-size orders.