SPSB State Street SPDR Portfolio Short Term Corporate Bond ETF
ETF 29.62 DelayedETF quote, holdings, sector allocation, technicals, and options analytics. Expected move IV rank history Fibonacci levels
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.
- 52-Week Range
- $29.45 – $30.34
- YTD
- -1.99%
- IV Rank (30D)
- 59.94
- Straddle Price
- $0.53
- P/C Vol Ratio
- 0.40
- Open
- $29.62
- Day Range
- $29.59 – $29.64
- Volume
- 2,994,806
- Prev Close
- $29.61
State Street SPDR Portfolio Short Term Corporate Bond ETF (SPSB) ETF
No description available.
- Exchange
- ARCX
- Inception
- 2009-12-16
- Has Options
- Yes
- Homepage
- https://www.ssga.com/us/en/individual/etfs
- Expense ratio
- 0.04% issuer, Oct 21, 2026
- Assets
- $11.2B issuer-reported, Oct 19, 2026
- Trailing yield
- 4.38% paid monthly
- Average daily volume
- $197M 30 sessions
- Holdings
- 1,672 top 10 are 4.4%
- Listed
- Dec 16, 2009 NYSE Arca
- Net asset value
- $29.62 issuer, Oct 19, 2026 · closed +0.01% to NAV
- Median bid/ask spread
- 0.03% 30 days, issuer-reported
- 30-day SEC yield
- 5.28% issuer
- Tracking difference
- +0.00 pts vs index, after fees, FY 2026
Moves with. Long Treasuries (30% of its variance, beta 0.11); US dollar (7% of its variance, beta -0.05). These factors explain 39% of its daily moves over the last year.
Stated objective. The State Street SPDR Portfolio Short Term Corporate Bond ETF (the Fund) seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks the short-term U.S. corporate bond market. (from the fund's prospectus)
All 1,672 holdingsFlow historyOverlap toolAll Short-Term Bond ETFs
- Oct 16, 2026
- +$21M latest day
- Latest 5 trading days
- +$154M
- Latest 21 trading days
- +$456M +4.1% of assets
- Year to date
- +$3.1B +$3.4B over 12 months
Each day
| Day | Net flow |
|---|---|
| Oct 16, 2026 | +$21M |
| Oct 15, 2026 | +$77M |
| Oct 14, 2026 | +$24M |
| Oct 13, 2026 | $0 |
| Oct 12, 2026 | +$33M |
| Oct 9, 2026 | −$41M |
| Oct 8, 2026 | +$33M |
| Oct 7, 2026 | +$15M |
| Oct 6, 2026 | $0 |
| Oct 5, 2026 | $0 |
| Oct 2, 2026 | +$32M |
| Oct 1, 2026 | −$35M |
| Sep 30, 2026 | +$50M |
| Sep 29, 2026 | +$59M |
| Sep 28, 2026 | +$83M |
| Sep 25, 2026 | −$65M |
| Sep 24, 2026 | +$109M |
| Sep 23, 2026 | +$15M |
| Sep 22, 2026 | +$119M |
| Sep 21, 2026 | +$45M |
| Sep 18, 2026 | −$116M |
Daily figures are the change in shares outstanding times net asset value, both as the issuer publishes them each day.
- Jun 2026
- +$441M latest reported month
- Latest 3 months
- +$828M +7.8% of assets
- Latest 12 months
- +$2.3B +21.9% of assets
View as a table
| Month | Net flow |
|---|---|
| Jun 2026 | +$441M |
| May 2026 | +$126M |
| Apr 2026 | +$261M |
| Mar 2026 | +$970M |
| Feb 2026 | +$288M |
| Jan 2026 | +$190M |
| Dec 2025 | +$124M |
| Nov 2025 | +$208M |
| Oct 2025 | +$100M |
| Sep 2025 | −$416M |
| Aug 2025 | +$121M |
| Jul 2025 | −$87M |
Net creations and redemptions from the fund's SEC filings, which become public about 60 days after each quarter. Every month since 84 months ago
| Fund | Overlap | Fee | Assets | 1Y | |
|---|---|---|---|---|---|
| BSVVanguard Short-Term Bond ETF | — | 0.03% | $45.5B | −3.3% | compare |
| VCSHVanguard Short-Term Corporate Bond ETF | — | 0.03% | $43.9B | −3.3% | compare |
| IGSBiShares Trust iShares 1-5 Year Investment Grade Corporate Bond ETF | — | 0.04% | $23.4B | −3.3% | compare |
| DFSDDimensional Short-Duration Fixed Income ETF | — | 0.16% | $7.3B | −3.8% | compare |
| LMBSFirst Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF | — | 0.66% | $6.5B | −2.8% | compare |
The largest other funds in the Short-Term Bond category.
- Authorized participants
- 12 active of 41 with agreements; top 3 did 69%
- Created · redeemed
- $6.2B · $3.9B over the fiscal year
- Redemptions in kind
- 99% creations 100% in kind
- Creation unit
- 100,000 shares
- Securities lending
- 4.76% of assets on loan on average; earned 1.4 bp
- Return vs index
- +0.00 pts after fees; +0.04 before; daily s.d. 0.28
From the fund's annual census filing with the SEC. In-kind redemptions are what let an ETF shed appreciated securities without realising gains.
| Ex-Date | Pay Date | Amount | Type |
|---|---|---|---|
| 2026-10-01 | 2026-10-06 | $0.1092 | CD |
| 2026-09-01 | 2026-09-04 | $0.1112 | CD |
| 2026-08-03 | 2026-08-06 | $0.1070 | CD |
| 2026-07-01 | 2026-07-07 | $0.1068 | CD |
| 2026-06-01 | 2026-06-04 | $0.1079 | CD |
| 2026-05-01 | 2026-05-06 | $0.1071 | CD |
| Symbol | Name | Weight % | Asset Class | Country |
|---|---|---|---|---|
| — | SALESFORCE INC SR UNSECURED 03/29 4.65 | 0.67% | Corporate Bond | US |
| — | AERCAP IRELAND CAP/GLOBA COMPANY GUAR 10/28 3 | 0.47% | Corporate Bond | IE |
| — | PFIZER INVESTMENT ENTER COMPANY GUAR 05/28 4.45 | 0.45% | Corporate Bond | US |
| — | BANK OF AMERICA CORP SR UNSECURED 12/28 VAR | 0.45% | Corporate Bond | US |
| — | AMAZON.COM INC SR UNSECURED 03/29 4 | 0.44% | Corporate Bond | US |
| — | NVIDIA CORP SR UNSECURED 06/29 4.35 | 0.43% | Corporate Bond | US |
| — | GOLDMAN SACHS GROUP INC SR UNSECURED 05/29 VAR | 0.39% | Corporate Bond | US |
| — | ORACLE CORP SR UNSECURED 02/29 4.55 | 0.37% | Corporate Bond | US |
| — | CITIBANK NA SR UNSECURED 06/29 VAR | 0.36% | Corporate Bond | US |
| — | WELLS FARGO + COMPANY SR UNSECURED 07/29 VAR | 0.35% | Corporate Bond | US |
| — | WELLS FARGO + COMPANY SR UNSECURED 05/29 VAR | 0.34% | Corporate Bond | US |
| — | GOLDMAN SACHS GROUP INC SR UNSECURED 04/29 VAR | 0.33% | Corporate Bond | US |
| — | ACCENTURE CAPITAL INC COMPANY GUAR 07/29 4.75 | 0.32% | Corporate Bond | US |
| — | AMAZON.COM INC SR UNSECURED 07/29 4.6 | 0.32% | Corporate Bond | US |
| — | AMGEN INC SR UNSECURED 03/28 5.15 | 0.31% | Corporate Bond | US |
| — | HSBC HOLDINGS PLC SR UNSECURED 03/29 VAR | 0.31% | Corporate Bond | GB |
| — | MORGAN STANLEY SR UNSECURED 04/30 VAR | 0.31% | Corporate Bond | US |
| — | JPMORGAN CHASE + CO SR UNSECURED 10/29 VAR | 0.29% | Corporate Bond | US |
| — | CVS HEALTH CORP SR UNSECURED 03/28 4.3 | 0.29% | Corporate Bond | US |
| — | JPMORGAN CHASE + CO SR UNSECURED 07/30 VAR | 0.29% | Corporate Bond | US |
| — | MORGAN STANLEY SR UNSECURED 07/30 VAR | 0.29% | Corporate Bond | US |
| — | MORGAN STANLEY BANK NA SR UNSECURED 01/29 VAR | 0.29% | Corporate Bond | US |
| — | GOLDMAN SACHS GROUP INC SR UNSECURED 10/29 VAR | 0.29% | Corporate Bond | US |
| — | HSBC HOLDINGS PLC SR UNSECURED 06/29 VAR | 0.28% | Corporate Bond | GB |
| — | BANK OF AMERICA CORP SR UNSECURED 04/29 VAR | 0.28% | Corporate Bond | US |
| — | GOLDMAN SACHS GROUP INC SR UNSECURED 07/30 VAR | 0.28% | Corporate Bond | US |
| — | HUNTINGTON BANCSHARES SR UNSECURED 08/29 VAR | 0.27% | Corporate Bond | US |
| — | WELLS FARGO + COMPANY SR UNSECURED 10/29 VAR | 0.27% | Corporate Bond | US |
| — | BARCLAYS PLC SR UNSECURED 05/29 VAR | 0.26% | Corporate Bond | GB |
| — | BANK OF NEW YORK MELLON SR UNSECURED 04/29 VAR | 0.26% | Corporate Bond | US |
| — | CITIGROUP INC SR UNSECURED 03/30 VAR | 0.26% | Corporate Bond | US |
| — | FISERV INC SR UNSECURED 07/29 3.5 | 0.26% | Corporate Bond | US |
| — | BARCLAYS PLC SR UNSECURED 11/29 VAR | 0.25% | Corporate Bond | GB |
| — | CAPITAL ONE FINANCIAL CO SR UNSECURED 06/29 VAR | 0.25% | Corporate Bond | US |
| — | BANK OF AMERICA CORP SR UNSECURED 03/29 VAR | 0.25% | Corporate Bond | US |
| — | BANK OF NOVA SCOTIA SR UNSECURED 02/30 VAR | 0.25% | Corporate Bond | CA |
| — | NVIDIA CORP SR UNSECURED 06/28 4.25 | 0.25% | Corporate Bond | US |
| — | JPMORGAN CHASE + CO SR UNSECURED 01/29 VAR | 0.24% | Corporate Bond | US |
| — | TOYOTA MOTOR CREDIT CORP SR UNSECURED 05/29 5.05 | 0.24% | Corporate Bond | US |
| — | HSBC HOLDINGS PLC SR UNSECURED 03/29 VAR | 0.24% | Corporate Bond | GB |
| — | ORACLE CORP SR UNSECURED 03/28 2.3 | 0.24% | Corporate Bond | US |
| — | MORGAN STANLEY SR UNSECURED 10/29 VAR | 0.24% | Corporate Bond | US |
| — | FIDELITY NATL INFO SERV SR UNSECURED 03/29 4.55 | 0.24% | Corporate Bond | US |
| — | REGIONS BANKS/BIRMGHM AL SR UNSECURED 07/29 VAR | 0.24% | Corporate Bond | US |
| — | HCA INC COMPANY GUAR 06/29 4.125 | 0.23% | Corporate Bond | US |
| — | HSBC HOLDINGS PLC SR UNSECURED 08/29 VAR | 0.23% | Corporate Bond | GB |
| — | MORGAN STANLEY SR UNSECURED 04/30 VAR | 0.23% | Corporate Bond | US |
| — | SPRINT CAPITAL CORP COMPANY GUAR 11/28 6.875 | 0.23% | Corporate Bond | US |
| — | CISCO SYSTEMS INC SR UNSECURED 02/29 4.85 | 0.22% | Corporate Bond | US |
| — | CITIGROUP INC SR UNSECURED 09/30 VAR | 0.22% | Corporate Bond | US |
| Category | Weight | Value | Positions |
|---|---|---|---|
| Corporate | 92.48% | $9.83B | 1500 |
| Short-term investment | 4.70% | $500.0M | 3 |
| Debt | 3.16% | $335.8M | 103 |
| Month | '21 | '22 | '23 | '24 | '25 | '26 | Avg |
|---|---|---|---|---|---|---|---|
| Jan | 0.00% | -0.71% | 1.02% | 0.61% | 0.57% | 0.30% | 0.30% |
| Feb | -0.06% | -0.52% | -0.88% | -0.34% | 0.80% | 0.40% | -0.10% |
| Mar | -0.13% | -1.37% | 1.23% | 0.30% | 0.33% | -0.40% | -0.01% |
| Apr | 0.16% | -0.63% | 0.17% | -0.10% | 0.53% | 0.40% | 0.09% |
| May | 0.16% | 0.70% | -0.07% | 0.61% | 0.30% | 0.30% | 0.33% |
| Jun | -0.10% | -0.77% | -0.10% | 0.30% | 0.80% | 0.20% | 0.06% |
| Jul | 0.16% | 0.60% | 0.68% | 1.32% | 0.20% | 0.15% | 0.52% |
| Aug | -0.03% | -0.84% | 0.34% | 0.87% | 0.43% | 0.20% | 0.16% |
| Sep | -0.06% | -1.38% | -0.07% | 0.87% | 0.50% | -0.60% | -0.12% |
| Oct | -0.42% | -0.44% | 0.31% | -0.53% | 0.17% | 0.27%* | -0.11% |
| Nov | -0.19% | 1.41% | 1.26% | 0.50% | 0.50% | -- | 0.70% |
| Dec | -0.03% | -0.31% | 0.61% | -0.20% | 0.07% | -- | 0.03% |
| Total | -0.54% | -4.22% | 4.57% | 4.27% | 5.32% | 1.22% | 1.77% |
Quick-reference for reading the values below. Indicators combine to confirm a view — no single one is a trade signal on its own.
- SMA 20 / 50 / 200 — price above = uptrend, below = downtrend. SMA 50 crossing SMA 200 is the golden/death cross.
- EMA 12 / 26 — faster-reacting averages; 12 above 26 is short-term bullish.
- MACD — bullish when MACD > signal (green badge), bearish when below. Divergence from price often precedes reversals.
- ADX (14) — trend strength regardless of direction. <20 range, 20–25 weak trend, 25–50 trend, >50 strong trend.
- +DI / −DI — +DI > −DI favors bulls; the reverse favors bears. Read alongside ADX.
- RSI (14) — <30 oversold, >70 overbought. 40–60 is neutral; trending names can stay extreme.
- Stochastic %K / %D — <20 oversold, >80 overbought. %K crossing %D is an early momentum signal.
- Williams %R — inverted scale: <−80 oversold, >−20 overbought.
Oscillators work best in range-bound markets; in strong trends they give premature reversal signals.
- Bollinger Bands — price at upper band = overbought, lower = oversold. Narrow bands (squeeze) often precede expansion.
- OBV — cumulative volume; rising OBV confirms uptrend, falling OBV confirms downtrend. Divergence from price is a warning.
- Vol SMA 20 / Vol ROC — today's volume vs. 20-day average. Positive ROC with price move = conviction.
- ATR / True Range — average daily $ move; sizing and stop-loss reference.
- HV 20 / 30 / 60 — realized (historical) volatility. Compare to IV on the options cards: IV > HV = rich premium.
Confluence matters: trend + momentum + volume agreeing carries far more weight than any single indicator. For how these feed the spread scanner score, see the algorithm docs →
Trend Indicators
Momentum Oscillators
Volume & Volatility
Data Summary
SPSB Stock Analysis Report
State Street SPDR Portfolio Short Term Corporate Bond ETF
Executive Summary
Overall Assessment: NEUTRAL | Confidence Level: 7/10
SPSB is a passively-managed short-term corporate bond ETF showing stable, range-bound price action with minimal volatility. The fund exhibits characteristics typical of high-quality fixed-income products: tight Bollinger Bands (0.58 width), extremely low historical volatility (1.7-1.9%), and a beta of just 0.04 relative to equities. Recent technical signals are mixed—MACD shows bearish crossover while momentum oscillators remain neutral, though stochastic readings suggest near-term overbought conditions. The fund's $11.1B in assets, exceptionally low expense ratio (0.04%), and strong recent inflows (+$2.3B over 12 months) indicate solid investor demand. Investment thesis: SPSB offers defensive, income-generating exposure to investment-grade corporate debt with tight risk parameters, though the bearish MACD crossover warrants monitoring for near-term weakness.
Primary Drivers:
- Strong fund inflows and stable asset base ($11.1B AUM)
- Attractive 4.38% trailing yield with minimal fee drag
- Diversified holding structure (1,666 positions, top 10 = 4.4%)
Primary Risks:
- Bearish MACD crossover indicating momentum deterioration
- Stochastic oscillators at overbought levels (K=82.16, D=77.00)
- Interest rate sensitivity (fixed-income duration risk)
- Volume contraction (-34.24% rate of change)
Technical Analysis
Trend Direction
Short-term (1-4 weeks): BEARISH BIAS
- Price ($29.62) sits below the SMA 20 ($29.60), SMA 50 ($29.75), and SMA 200 ($29.99)
- All three moving averages are descending or flat, with the 200-day MA at the highest level
- ADX (30.62) confirms strong trend regime with -DI (28.93) > +DI (20.25), indicating downward pressure dominates
- EMA positioning (12: $29.61, 26: $29.64) shows minimal separation, suggesting low momentum
Medium-term (1-3 months): NEUTRAL TO SLIGHTLY BEARISH
- Price trading in tight consolidation just below key moving averages
- The spread between SMA 20 and SMA 200 ($0.37 or 1.2%) is narrow, typical of stabilization phases in fixed-income ETFs
- ADX strength (30.62) suggests this downward trend has conviction, though the small magnitude of decline limits severity
Long-term (3-12 months): NEUTRAL
- Fund's $11.1B AUM and strong 12-month inflows (+21.9%) suggest institutional confidence
- Technical picture reflects the stable nature of short-term corporate bonds rather than fundamental deterioration
Support/Resistance Levels
| Level | Type | Relevance | |-------|------|-----------| | $29.99 | Resistance (SMA 200) | Primary overhead resistance; fund must close above to confirm trend reversal | | $29.75 | Resistance (SMA 50) | Secondary resistance; near-term barrier | | $29.62 | Current Price / Support (SMA 20) | Pivot point; breaking below triggers further downside | | $29.60 | Support (SMA 20) | Immediate floor; 2-3 cent break would signal weakness | | $29.52 | Support (BB Lower) | Bollinger Band support; strong technical floor | | $29.47 | Support (Extrapolated from ATR) | ~$0.15 drop from current = potential capitulation level |
Key Observation: The $0.37 gap between the lower Bollinger Band ($29.52) and the SMA 200 ($29.99) creates a well-defined trading range. Price reversions to the middle Bollinger Band ($29.60) are likely within the next 1-4 weeks.
Momentum Signals
RSI (14): 46.08 (NEUTRAL)
- Positioned firmly in the neutral zone (30-70), neither overbought nor oversold
- Slight bearish bias implied by reading below 50, but lack of extremity suggests no capitulation selling pressure
- RSI not signaling buy signal yet; would need to drop below 30 for oversold confirmation
MACD: -0.04 / Signal: 0.01 / Histogram: -0.05 (BEARISH CROSSOVER)
- This is the most concerning technical signal: MACD line (-0.04) is below the signal line (0.01)
- Negative histogram (-0.05) confirms bearish momentum deterioration
- In fixed-income ETFs, MACD crossovers often precede 2-4 week consolidations or minor retracements
- The small absolute values suggest the reversal is not severe; early-stage downward momentum
Stochastic Oscillators: %K 82.16, %D 77.00 (OVERBOUGHT)
- Both readings above 80 indicate overbought conditions
- %K > %D suggests momentum is still pointing upward despite overbought reading
- This creates a bullish divergence risk: stochastic overbought often precedes pullbacks but can also indicate strong underlying demand
- In bond ETFs, overbought readings are less predictive than in equities; yield-driven demand can sustain elevated levels
Williams %R: -16.67 (OVERBOUGHT)
- Confirms the overbought signal from stochastic readings
- Suggests near-term pullback probability, though not imminent
Overall Momentum Assessment: Mixed signals with bearish lean. The MACD crossover is the most reliable indicator here and signals deteriorating momentum, while stochastic readings suggest a near-term correction is possible. However, the neutral RSI and strong fund inflows suggest any pullback would be contained within the established range.
Volume Analysis
Volume SMA 20: 5.16M shares
- Current volume rate of change: -34.24% (significant contraction)
- Falling volume during a downtrend typically confirms weakness but can also indicate dwindling selling pressure—a data quality flag
On-Balance Volume (OBV): 130.1M
- OBV is accumulating, suggesting institutional buyers are present despite price declines
- This divergence between price weakness and volume accumulation is bullish: suggests strong hands are accumulating at lower prices
Interpretation:
- Volume contraction during the downward move suggests the selling is not panic-driven
- OBV accumulation indicates institutional inflows continue (consistent with reported +$828M in Q3 flows)
- The -34.24% volume ROC may reflect lighter summer trading or post-earnings repositioning; typical for bond ETFs
News & Sentiment Analysis
Recent Headlines Summary
| Date | Headline | Sentiment | Relevance | |------|----------|-----------|-----------| | 2026-02-05 | Climber Capital Sells $3.5M of SPSB | POSITIVE | Minor institutional transaction; suggests liquidity; no negative connotation | | 2023-03-03 | Tracking George Soros's Portfolio Q4 2022 | NEUTRAL | Reference/comparison data; no direct SPSB mention likely | | 2022-12-15 | ETF Market Outlook & Investing Strategies 2023 | NEUTRAL | Sector-wide commentary; no specific catalyst | | 2022-05-11 | Latest Inflation News Means for Retirees | NEUTRAL | Macro context; bond funds benefit from stable inflation expectations | | 2021-12-19 | Successful Investors: $5,000 Blank Slate | NEUTRAL | Educational content; potential SPSB candidate for conservative allocations | | 2021-11-02 | Major Asset Classes: October 2021 Performance | NEUTRAL | Historical data; no current relevance |
Sentiment Assessment
Aggregate News Sentiment: NEUTRAL TO SLIGHTLY POSITIVE (6/10)
- Notable finding: No negative news headlines present; absence of regulatory concerns, credit events, or fund-specific issues
- The single positive headline (Climber Capital sale) suggests the fund maintains institutional credibility and trading liquidity
- News articles are dated (oldest from 2021, reflecting fund's long-term stability rather than recent events)
- Data quality flag: Headlines appear outd
SPSB Options Activity & IV Rank
SPSB IV rank history, 52-week IV rank and IV percentile →
Volatility Metrics
Options Flow
ATM Options Pricing
Chain Summary
Each spread is ranked by a composite score built in three stages. Full documentation →
score = P(profit) × (credit / spread_width)
P(profit) from short leg delta (1 − |delta|), penalised above 85%. Credit uses mid-price to handle illiquid chains fairly.
RR and BF (30-delta) from the persisted per-symbol skew snapshot — wing strikes picked by real greeks.delta, not a moneyness proxy. Put skew boosts bull puts, penalises bear calls. High butterfly boosts iron condors. Calendars are skew-neutral.
- RSI <40 bullish / >60 bearish
- MACD crossover + histogram trend
- Price vs SMA 50 & SMA 200
- Stochastic %K <20 / >80
- Williams %R <−80 / >−20
- Blended ATR + straddle expected-move penalty
- Bollinger Band signal (+ counter-trend penalty)
- BB width — vol contraction boost for ICs
- IV rank ≥ 75 → strong boost for credit spreads
- IV rank < 25 → penalty (selling cheap vol)
- Min open interest across all legs
- OI < 100 → −0.10 · OI < 500 → −0.05
score = base_score × skew_multiplier × tech_multiplier
Both multipliers are shown per spread. Beta is informational only — ATR already captures realized vol. Full algorithm documentation →
Enter a ticker to scan for optimal spread opportunities.
Evaluates all bull put, bear call, iron condor, and calendar spread combinations using GPU-accelerated analysis.
IV(put wing) − IV(ATM), in vol pointsHow much the OTM put trades above (or below) the at-the-money strike. Measures the height of the put-side tail relative to ATM — i.e. how expensive crash insurance is on this name.
- Positive (typical) — wing IV > ATM IV. Standard equity put skew: portfolios bid up crash protection, so OTM puts trade richer than ATM.
- Near zero or negative (unusual) — wing IV ≤ ATM IV. Flat or inverted put side. Common when there's no fear demand, in tightly mean-reverting names, or right after an earnings catalyst clears.
- Percentile vs own 3-yr history: high = wings rich (good time to sell wing premium); low = wings cheap (good time to buy protection).
- Not directional — high or low wings don't predict up or down moves. It's a price tag on tail insurance, not a forecast.
IV(call wing) − IV(put wing), equal delta on each sideWhich side of the smile is the market paying up for? Measures the tilt of the surface — call skew vs put skew at matched deltas.
- Negative (typical) — puts richer than calls. Standard equity behavior: hedging demand makes puts carry a premium. Most large-caps sit in the −1 to −5 vol-point range.
- Strongly negative (< −5 pts) — heavy downside hedging, elevated fear, or an upcoming catalyst (earnings, FDA, macro event). Worth flagging.
- Positive — calls richer than puts. Unusual for equities; signals bullish momentum, short-squeeze positioning, or takeover/M&A speculation.
- Near zero — symmetric surface. Market sees roughly equal up/down risk. Rare for large-caps; more common in commodities and FX.
Wing-vs-ATM tells you how expensive the tails are. Risk Reversal tells you which side is favored. Combined:
- High wing percentile + deeply negative RR → strong put bid; stress or major event priced in. Owning protection costs a premium; selling put premium is dangerous.
- Low wing percentile + near-zero RR → complacency; insurance cheap and balanced. Good environment to add cheap downside hedges.
- Positive RR + elevated wings → call-side fear-of-missing-out; common in squeeze setups. Upside calls expensive, downside puts not bid.
Percentile is the rank of today's reading within ~3 years of this symbol's own history. High percentile = wings are rich relative to history; not a directional signal. Skew is read off the chain in real time, not from CBOE SKEW.
Enter a ticker to render the implied volatility surface.
Enter a ticker to render the implied volatility smile.
Risk Metrics
Analysis Details
Data Points: 251
Period: 252 trading days
Low volatility - stock moves less than market
SPSB Institutional Ownership (13F)
Latest filings — 2026-09-30Institutional managers with $100M+ AUM file Form 13F-HR quarterly, due 45 days after quarter end. Holdings are reported gross at quarter-end market value — they are a snapshot, not a real-time position.
- Shares — long equity positions in this name, aggregated across share classes.
- Calls / Puts — notional value of long call / put exposure where this ticker is the underlying.
- % of Float — holder's reported shares divided by the latest diluted shares outstanding. Sums above 100% indicate large custodian / prime broker positions where the same shares are reported by multiple filers.
- Custodian badge — filers with more than 5,000 holdings are typically broker-dealers / custodians reporting customer-held shares, not active managers.
Each filer is counted once at its latest 13F-HR filing. New filings are ingested on a weekly cadence.
| # | Filer | Notional Value | % of Total | Period |
|---|
| # | Filer | Notional Value | % of Total | Period |
|---|
Regulatory short-interest reports publish on a bi-weekly settlement cadence; short-volume is reported daily by the trade-reporting facilities. Float is derived from insider-ownership filings.
- Short Interest — total shares currently sold short as of the settlement date. Lags real time by ~8 business days.
- SI % of Float — short interest / free float. The key crowding metric.
- Days to Cover — short interest / avg daily volume. How many full trading days it would take shorts to buy back. High DTC + catalyst = squeeze fuel.
- Short Vol Ratio — today's short-sale volume / total volume. Intraday selling pressure proxy (not the same as short interest).
- Free Float — shares available for public trading (total shares minus insider / restricted).
- Float % — free float / shares outstanding. <50% = tightly held, more prone to squeezes.
- SI % of Float < 5% — typical, no particular signal.
- 5–15% — elevated; watch for catalysts (earnings, guidance, macro).
- 15–30% — heavily shorted; tight-float names in this range have produced notable squeezes historically.
- >30% — extreme; borrow is likely expensive and squeeze risk is material.
- Days to Cover > 5 combined with high SI% amplifies squeeze potential.
- Trend matters more than level. Rapidly rising short interest often precedes negative catalysts or heavy hedging.
- A sudden drop in SI after a rally may indicate a squeeze in progress.
Short interest is reported mid-month and end-of-month; short volume is daily.
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