SPAB State Street SPDR Portfolio Aggregate Bond ETF

ETF 24.57 Delayed

ETF 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.

SPAB $24.57 —
Key stats
$24.57
52-Week Range
$24.17 – $26.17
YTD
-4.55%
IV Rank (30D)
9.53
Straddle Price
$0.55
P/C Vol Ratio
0.73
Open
$24.60
Day Range
$24.51 – $24.61
Volume
1,550,030
Prev Close
$24.55
About

State Street SPDR Portfolio Aggregate Bond ETF (SPAB) ETF

No description available.

Exchange
ARCX
Inception
2007-05-23
Has Options
Yes
Homepage
https://www.ssga.com/us/en/individual/etfs
Fund profile
holdings as of Oct 19, 2026issuer datathrough Jun 2026flows, SEC filings
Expense ratio
0.03%
issuer, Oct 21, 2026
Assets
$10.4B
issuer-reported, Oct 19, 2026
Trailing yield
4.25%
paid monthly
Average daily volume
$91M
30 sessions
Holdings
8,782
top 10 are 4.5%
Listed
May 23, 2007
NYSE Arca
Net asset value
$24.51
issuer, Oct 19, 2026 · closed -0.02% to NAV
Median bid/ask spread
0.04%
30 days, issuer-reported
30-day SEC yield
5.21%
issuer
Closure risk, 12 months
0.1%
low · model
Tracking difference
+3.17 pts
vs index, after fees, FY 2026
FrenzyCap ETF score
99
how it is built
Cost97
Liquidity99
Scale100
Diversification100

Moves with. Long Treasuries (69% of its variance, beta 0.33); US large-cap stocks (5% of its variance, beta 0.05); High yield over Treasuries (4% of its variance, beta -0.09). These factors explain 85% of its daily moves over the last year.

Stated objective. The State Street SPDR Portfolio Aggregate 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 U.S. dollar denominated investment grade bond market. (from the fund's prospectus)

All 8,782 holdingsFlow historyOverlap toolAll Core Bond ETFs

Fund flows
daily as of Oct 19, 2026issuer datathrough Jun 2026SEC filings
Oct 19, 2026
−$12M
latest day
Latest 5 trading days
+$62M
Latest 21 trading days
+$535M
+5.2% of assets
Year to date
+$1.6B
+$2.0B over 12 months
Each day
Net creations of SPAB by day, Sep 21, 2026 to Oct 19, 2026
DayNet flow
Oct 19, 2026−$12M
Oct 16, 2026+$74M
Oct 15, 2026$0
Oct 14, 2026$0
Oct 13, 2026$0
Oct 12, 2026+$41M
Oct 9, 2026+$278M
Oct 8, 2026$0
Oct 7, 2026$0
Oct 6, 2026$0
Oct 5, 2026+$19M
Oct 2, 2026+$9.7M
Oct 1, 2026$0
Sep 30, 2026+$73M
Sep 29, 2026$0
Sep 28, 2026$0
Sep 25, 2026+$20M
Sep 24, 2026$0
Sep 23, 2026+$7.4M
Sep 22, 2026$0
Sep 21, 2026+$25M

Daily figures are the change in shares outstanding times net asset value, both as the issuer publishes them each day.

Jun 2026
−$53M
latest reported month
Latest 3 months
+$332M
+3.5% of assets
Latest 12 months
+$838M
+8.7% of assets
Jul 2025: −$218M−$218MAug 2025: −$47MAugSep 2025: +$34MOct 2025: +$236MOctNov 2025: +$165MDec 2025: +$255MDecJan 2026: −$165MFeb 2026: −$15MFebMar 2026: +$262MApr 2026: +$433M+$433MAprMay 2026: −$48MJun 2026: −$53MJun
View as a table
Net flows of SPAB by month, Jul 2025 to Jun 2026
MonthNet flow
Jun 2026−$53M
May 2026−$48M
Apr 2026+$433M
Mar 2026+$262M
Feb 2026−$15M
Jan 2026−$165M
Dec 2025+$255M
Nov 2025+$165M
Oct 2025+$236M
Sep 2025+$34M
Aug 2025−$47M
Jul 2025−$218M

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

Similar funds
FundOverlapFeeAssets1Y
BNDVanguard Total Bond Market—0.03%$162.8B−5.5%compare
AGGiShares Core U.S. Aggregate Bond ETF—0.03%$138.4B−5.6%compare
IUSBiShares Trust iShares Core Universal USD Bond ETF—0.06%$49.3B−5.5%compare
BIVVanguard Intermediate-Term Bond ETF—0.03%$28.3B−6.6%compare
FBNDFidelity Total Bond ETF—0.36%$28.1B−6.2%compare

The largest other funds in the Core Bond category.

Under the hood
fiscal year to Jun 30, 2026SEC census
Authorized participants
5 active
of 41 with agreements; top 3 did 87%
Created · redeemed
$3.2B · $2.4B
over the fiscal year
Redemptions in kind
74%
creations 76% in kind
Creation unit
100,000
shares
Securities lending
6.40%
of assets on loan on average; earned 1.1 bp
Return vs index
+3.17 pts
after fees; +3.20 before; daily s.d. 0.38

From the fund's annual census filing with the SEC. In-kind redemptions are what let an ETF shed appreciated securities without realising gains.

ETF Profile
holdings as of 2026-10-20
Holdings
8784
AUM
$10.4B
Provider
SPDR (State Street)
Inception
2007-05-23
Exchange
ARCX
Data As Of
2026-10-20
Expense Ratio
0.03%
Dividend Yield
4.25%
Distribution
Monthly
Recent distributions
Ex-Date Pay Date Amount Type
2026-10-01 2026-10-06 $0.0890 CD
2026-09-01 2026-09-04 $0.0893 CD
2026-08-03 2026-08-06 $0.0890 CD
2026-07-01 2026-07-07 $0.0875 CD
2026-06-01 2026-06-04 $0.0879 CD
2026-05-01 2026-05-06 $0.0864 CD
Asset Allocation
Top Holdings
top 50 of 8784 holdings
Symbol Name Weight % Asset Class Country
— SSI US GOV MONEY MARKET CLASS 2.97% Cash/Money Market —
— US TREASURY N/B 12/28 3.5 0.67% Treasury US
— US TREASURY N/B 05/35 4.25 0.50% Treasury US
— US TREASURY N/B 12/30 3.625 0.44% Treasury US
— US TREASURY N/B 11/27 3.375 0.44% Treasury US
— US TREASURY N/B 09/33 5 0.43% Treasury US
— US TREASURY N/B 02/30 4 0.41% Treasury US
— US TREASURY N/B 02/36 4.125 0.41% Treasury US
— US TREASURY N/B 11/28 4.375 0.40% Treasury US
— US TREASURY N/B 01/28 3.5 0.40% Treasury US
— US TREASURY N/B 03/31 3.875 0.38% Treasury US
— US TREASURY N/B 09/28 4.75 0.37% Treasury US
— US TREASURY N/B 12/27 3.375 0.36% Treasury US
— US TREASURY N/B 05/36 4.375 0.35% Treasury US
— US TREASURY N/B 11/34 4.25 0.35% Treasury US
— US TREASURY N/B 02/56 4.75 0.35% Treasury US
— US TREASURY N/B 02/34 4 0.34% Treasury US
— US TREASURY N/B 07/28 4.25 0.33% Treasury US
— US TREASURY N/B 05/33 3.375 0.33% Treasury US
— US TREASURY N/B 05/34 4.375 0.33% Treasury US
— US TREASURY N/B 11/33 4.5 0.33% Treasury US
— US TREASURY N/B 02/35 4.625 0.33% Treasury US
— US TREASURY N/B 08/34 3.875 0.33% Treasury US
— US TREASURY N/B 08/33 4.5 0.32% Treasury US
— US TREASURY N/B 08/35 4.25 0.32% Treasury US
— US TREASURY N/B 08/28 1.125 0.32% Treasury US
— US TREASURY N/B 05/56 5 0.31% Treasury US
— US TREASURY N/B 05/31 1.625 0.31% Treasury US
— US TREASURY N/B 02/31 3.5 0.30% Treasury US
— US TREASURY N/B 04/31 3.875 0.30% Treasury US
— US TREASURY N/B 09/31 3.625 0.30% Treasury US
— US TREASURY N/B 02/33 3.5 0.29% Treasury US
— US TREASURY N/B 11/35 4 0.29% Treasury US
— US TREASURY N/B 02/28 4.25 0.29% Treasury US
— US TREASURY N/B 08/33 3.875 0.29% Treasury US
— FNMA TBA 30 YR 5.5 SINGLE FAMILY MORTGAGE 0.28% MBS/ABS US
— US TREASURY N/B 08/29 3.625 0.28% Treasury US
— US TREASURY N/B 05/28 4 0.28% Treasury US
— US TREASURY N/B 02/32 1.875 0.28% Treasury US
— US TREASURY N/B 11/45 4.625 0.28% Treasury US
— US TREASURY N/B 09/28 3.375 0.27% Treasury US
— US TREASURY N/B 08/36 4.625 0.27% Treasury US
— US TREASURY N/B 06/28 4.125 0.27% Treasury US
— US TREASURY N/B 07/30 3.875 0.27% Treasury US
— FED HM LN PC POOL RQ0118 FR 05/56 FIXED 5 0.27% Corporate Bond US
— US TREASURY N/B 08/28 4.125 0.26% Treasury US
— US TREASURY N/B 03/29 3.5 0.26% Treasury US
— US TREASURY N/B 12/30 3.75 0.25% Treasury US
— FNMA TBA 30 YR 5 SINGLE FAMILY MORTGAGE 0.25% MBS/ABS US
— US TREASURY N/B 05/46 5 0.25% Treasury US
Non-Equity Breakdown
State Street(R) SPDR(R) Portfolio Aggregate Bond ETF · NPORT-P period 2026-06-30 (filed 2026-08-28)
Net assets: $9.63B · 8303 total positions · equity 0.00% · non-equity 102.60%
Non-equity holdings — 8303 positions, 102.60% of NAV
Category Weight Value Positions
US Treasury 45.08% $4.34B 258
Corporate 23.40% $2.25B 5507
Mortgage-backed (US Govt-Sponsored Entity) 18.45% $1.78B 1146
Mortgage-backed (US Govt Agency) 5.64% $542.4M 327
Short-term investment 4.34% $417.5M 4
Non-US Sovereign 2.96% $285.1M 411
Debt 0.83% $79.4M 273
Mortgage-backed (Corporate) 0.66% $63.5M 114
US Govt-Sponsored Entity 0.43% $41.4M 26
Municipal 0.43% $41.4M 161
ABS-O 0.31% $29.9M 64
US Govt Agency 0.07% $7.0M 12
Chart
Seasonality
Month'21'22'23'24'25'26Avg
Jan-0.68%-1.49%2.77%0.16%0.56%0.31%0.27%
Feb-1.64%-1.07%-3.23%-2.03%2.19%1.75%-0.67%
Mar-1.10%-3.34%3.20%0.44%-0.20%-1.35%-0.39%
Apr0.37%-3.61%0.12%-1.76%0.12%0.00%-0.79%
May0.13%1.36%-0.08%1.42%-0.43%0.20%0.43%
Jun0.81%-1.20%-0.59%0.44%1.83%0.31%0.27%
Jul1.14%1.70%0.16%2.90%-0.24%-1.12%0.76%
Aug-0.33%-3.26%-0.08%1.05%0.31%0.12%-0.36%
Sep-1.03%-3.85%-2.25%0.89%1.33%-2.33%-1.21%
Oct-0.33%-2.03%-0.83%-2.83%0.39%0.99%*-0.77%
Nov0.34%3.50%3.62%1.59%0.81%--1.97%
Dec-0.60%-1.87%2.52%-2.15%-0.23%---0.47%
Total-2.92%-14.41%5.19%-0.06%6.59%-1.18%-1.13%
Technical Indicators

Quick-reference for reading the values below. Indicators combine to confirm a view — no single one is a trade signal on its own.

Trend Indicators
  • 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.
Momentum Oscillators
  • 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.

Volume & Volatility
  • 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

SMA 20: $24.42
SMA 50: $24.75
SMA 200: $25.36
Current: $24.57
EMA 12: $24.50
EMA 26: $24.55
MACD: -0.0513 | Signal: 0.0467
BEARISH
ADX (14): 26.01
TREND
+DI: 21.05
−DI: 26.54

Momentum Oscillators

RSI (14): 51.32
NEUTRAL
Stoch %K: 75.51
Stoch %D: 77.32
Williams %R: -18.37

Volume & Volatility

BB Upper: $24.63
BB Lower: $24.21
NEUTRAL
OBV: 11,870,702
Vol SMA 20: 4,040,709
Vol ROC: -72.02%
ATR: $0.12
True Range: $0.10
HV 20: 4.2%
HV 30: 5.0%
HV 60: 4.5%

Data Summary

Data Points: 500
Last Updated:
Date Range: 2024-10-23T00:00:00 – 2026-10-21T00:00:00
AI Analysis

SPAB Stock Analysis Report

State Street SPDR Portfolio Aggregate Bond ETF


Executive Summary

Overall Assessment: NEUTRAL | Confidence Level: 7/10

SPAB is a passively managed core bond ETF experiencing mixed technical signals amid a low-volatility, range-bound trading environment. The fund exhibits bearish momentum (MACD histogram -0.15, negative crossover) despite neutral RSI readings, suggesting consolidation rather than directional conviction. Recent fund flows show moderate outflows in June 2026 (-$53M) after strong 12-month inflows (+$838M), indicating potential investor sentiment shifts in fixed income markets.

Key Drivers:

  • Ultra-low expense ratio (0.03% vs 0.32% category median) positioning it competitively
  • Massive fund size ($10.3B) with broad diversification (8,733 holdings, top 10 = 4.5%)
  • Treasury yield curve positioning with significant exposure to intermediate/long-dated bonds
  • Deteriorating volume momentum (VRoC -87.95%) suggesting declining institutional interest

Primary Risks:

  • Bearish MACD divergence contradicting neutral RSI—momentum loss without capitulation
  • Extremely elevated IV premium (406.1% above realized volatility) suggesting option pricing disconnect
  • Recent fund outflows after sustained inflows—potential trend reversal signal
  • Low beta (0.12) limits upside capture if bond yields decline sharply

Investment Thesis: SPAB remains a defensive, low-cost core bond allocation suitable for income-focused investors, but recent technical deterioration and fund flow reversal suggest caution on new positions near current levels. The 4.27% trailing yield provides income support, but declining volume and bearish momentum indicators warrant monitoring for potential mean-reversion or support breakdown.


Technical Analysis

Trend Direction

Short-term (1-4 weeks): BEARISH BIAS

  • Price $24.59 sits below SMA 20 ($24.46) and SMA 50 ($24.80), indicating downtrend formation
  • MACD histogram at -0.15 with signal line at +0.04 confirms bearish crossover below zero
  • Stochastic %K at 72.78 (overbought) vs %D at 55.58 suggests momentum exhaustion despite near-term bounce potential

Medium-term (1-3 months): NEUTRAL

  • Price $24.59 trades within the $24.13–$24.79 Bollinger Band range, centered at $24.46
  • SMA 50 ($24.80) and SMA 200 ($25.39) suggest gradual downtrend over 2-3 months
  • ADX at 31.26 indicates strong trend regime, but -DI (28.49) > +DI (25.88) favors downside pressure
  • Current position near 20-day moving average suggests potential support test

Long-term (3-12 months): NEUTRAL TO DEFENSIVE

  • SMA 200 at $25.39 represents 3.3% resistance above current price
  • Low historical volatility (HV20 5.3%, HV30 4.9%, HV60 4.5%) reflects bond fund stability
  • Fund's passive structure limits high-conviction directional moves absent broad market repricing

Support/Resistance Levels

| Level | Type | Distance | Significance | |-------|------|----------|--------------| | $24.46 | Support (SMA 20) | -0.13 (-0.53%) | Immediate support; breach signals acceleration lower | | $24.13 | Support (Bollinger Lower) | -0.46 (-1.87%) | Mean-reversion floor; strong support | | $24.79 | Resistance (SMA 50/BB Upper) | +0.20 (+0.81%) | Minor resistance; consolidation ceiling | | $25.39 | Resistance (SMA 200) | +0.80 (+3.25%) | 3-month resistance; psychological level for reversal | | $25.80 | Resistance (52-week range extension) | +1.21 (+4.92%) | Major resistance; would break downtrend |

Momentum Signals

RSI (14) = 52.67 (NEUTRAL)

  • Positioned exactly in neutral zone (30–70 band)
  • Neither overbought nor oversold, indicating lack of extreme conviction
  • Downtrend without RSI compression (<30) suggests organic selling rather than panic liquidation
  • Potential for continued decay if bears maintain pressure

MACD (12/26 EMA)

  • MACD line: -0.10 (below signal line)
  • Signal line: +0.04
  • Histogram: -0.15 (negative, bearish configuration)
  • Bearish crossover confirmed; histogram expansion suggests accelerating downward momentum
  • No bullish reversal visible; downtrend has legs

Stochastic Oscillator

  • %K: 72.78 (overbought territory, >70)
  • %D: 55.58 (neutral)
  • %K > %D but overbought suggests potential pullback or consolidation imminent
  • Divergence between overbought %K and neutral %D indicates momentum divergence—watch for reversal

Bollinger Bands (Width: 2.70)

  • Price $24.59 trades within neutral zone (not touching upper or lower bands)
  • BB Width of 2.70 indicates normal volatility squeeze, not extreme compression
  • Position near middle band ($24.46) suggests no clear directional bias from volatility structure
  • Neutral signal; equal probability of breakout above $24.79 or below $24.13

Volume Analysis

Volume Metrics - SIGNIFICANT WEAKNESS:

  • Volume SMA 20: 3,798,430 shares
  • Volume Rate of Change (VRoC): -87.95% (CRITICAL BEARISH SIGNAL)
  • On-Balance Volume: 7,001,975 (accumulating but decelerating)

Interpretation:

  • The -87.95% VRoC indicates dramatic collapse in recent volume versus the 20-day average
  • This suggests institutional buying interest has dried up sharply
  • Low volume on the downtrend warns of weak conviction in selling, but also lack of support
  • Combined with bearish MACD and downtrend, this indicates institutional withdrawal rather than retail panic
  • Data Quality Note: Volume patterns for bond ETFs reflect tracking efficiency rather than active rotation; low volume is typical for passive instruments

News & Sentiment Analysis

Recent Headlines Summary

Key Observation: News data is heavily dated and repetitive, with minimal recent catalysts specific to SPAB:

  1. "Is The Bond Market Set To Roar In 2024?" (Seeking Alpha, 2023-12-27) — Macro bond outlook; neutral tone
  2. "A Guide to the 25 Cheapest ETFs" (Zacks, 2023-12-08, repeated twice) — Positioning SPAB as low-cost option; neutral
  3. "ESG-Focused Fund SUSA Continues To Grow" (Benzinga, 2023-10-16) — Covers competing ESG fund, not SPAB; neutral
  4. "A Guide to the 25 Cheapest ETFs" (Zacks, 2022-12-08) — Older article; neutral
  5. "Taxable Total Return Q2 2022 Review" (Seeking Alpha, 2022-07-06) — Historical performance review; neutral

Sentiment Assessment: NEUTRAL (No directional bias from recent news)

  • No earnings announcements, portfolio changes, or fund-specific catalysts in recent headlines
  • News coverage focuses on SPAB's cost competitiveness, not market direction or holdings performance
  • Absence of negative headlines suggests no reputation or regulatory issues
  • Generic bond market commentary ("market set to roar") lacks specificity

Catalyst Identification

Immediate (1-7 days): None identified

  • No fund-specific announcements pending
  • No portfolio rebalancing dates disclosed

Near-term (1-4 weeks):

  • Federal Reserve policy announcements (impacts Treasury yields and fund NAV)
  • Treasury supply calendar (auctions typically influence yield curves)
  • Economic data releases (inflation, employment) affecting bond valuations

Medium-term (1-3 months):

  • Earnings season for corporations underlying bond holdings (credit quality monitoring)
  • Fund rebalancing cycles
  • Potential shift in monetary policy stance

Data Quality Issue: News headlines are 1–4 years old;

Generated

SPAB Options Activity & IV Rank

SPAB IV rank history, 52-week IV rank and IV percentile →

Volatility Metrics

Current IV: 9.3%
7-DTE IV: —
Expected Move: $0.55
7-DTE Move: $0.55
Days to Exp: 30 (2026-11-20)

Options Flow

Call Volume: 11
Put Volume: 8
P/C Volume: 0.727
NEUTRAL
Call OI: 8
Put OI: 3
P/C OI: 0.375
Total OI: 11

ATM Options Pricing

ATM Call: $0.05
ATM Put: $0.50
Call %: 0.2%
Put %: 2.0%

Chain Summary

Chain Volume: 28
Chain OI: 20
Last Updated: 10/21/2026
Spread Scanner GPU

Each spread is ranked by a composite score built in three stages. Full documentation →

Stage 1 — Base Score (GPU scanner)

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.

Stage 2 — Skew Adjustment (±25% cap)

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.

Stage 3 — Technical Overlay (±50% cap, 5 groups)
Group 1 · Directional Bias (±0.25)
  • RSI <40 bullish / >60 bearish
  • MACD crossover + histogram trend
  • Price vs SMA 50 & SMA 200
Group 2 · Momentum (±0.10)
  • Stochastic %K <20 / >80
  • Williams %R <−80 / >−20
Group 3 · Volatility (up to −0.25 / +0.15)
  • Blended ATR + straddle expected-move penalty
  • Bollinger Band signal (+ counter-trend penalty)
  • BB width — vol contraction boost for ICs
Group 4 · IV Regime (±0.15)
  • IV rank ≥ 75 → strong boost for credit spreads
  • IV rank < 25 → penalty (selling cheap vol)
Group 5 · Liquidity (penalty up to −0.10)
  • 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.

Skew (Wing IV − ATM IV)
DTE:
Wing Δ:
Metric:
Wing vs ATM
IV(put wing) − IV(ATM), in vol points

How 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.
Risk Reversal
IV(call wing) − IV(put wing), equal delta on each side

Which 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.
Reading them together

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.
14 DTE / 10d —
— pts EXTREME
as of Oct 21 · No data
30 DTE / 10d —
— pts EXTREME
as of Oct 21 · ATM 7.6% / Wing —

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.

Volatility Surface

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Volatility Smile

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IV Rank (7 DTE)
IV Rank (30 DTE)9.5LowOct 21
Straddle Price (30 DTE)$0.55Oct 21
Beta Analysis

Risk Metrics

Beta: 0.1210
Alpha: -7.79%
Correlation: 0.3772
R-Squared: 14.2%
Stock Volatility: 4.1%
Market Volatility: 12.7%

Analysis Details

Benchmark: SPY
Data Points: 251
Period: 252 trading days
Interpretation:
Low volatility - stock moves less than market
Beta & Alpha Over Time

SPAB Institutional Ownership (13F)

Latest filings — 2026-09-30

Institutional 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.

569 filers295,727,650 shares$7.39B value
# Filer Shares Value % of Total % of Float Period
1 LPL Financial LLC Custodian 25,330,337 $646.43M 8.74% — 2026-06-30
2 State Street Corp 14,524,976 $370.68M 5.01% — 2026-06-30
3 Cerity Partners LLC Custodian 14,403,756 $367.58M 4.97% — 2026-06-30
4 CWM, LLC Custodian 14,001,534 $358.72M 4.85% — 2026-03-31
5 CLIFTONLARSONALLEN WEALTH ADVISORS, LLC 10,567,608 $257.43M 3.48% — 2026-09-30
6 Envestnet Asset Management, Inc. 9,857,952 $251.57M 3.40% — 2026-06-30
7 EXCHANGE TRADED CONCEPTS, LLC 9,727,132 $248.24M 3.36% — 2026-06-30
8 RiverFront Investment Group, LLC 7,808,136 $199.26M 2.69% — 2026-06-30
9 Bank of America Corp Custodian 7,130,294 $181.97M 2.46% — 2026-06-30
10 Tidal Investments LLC 5,605,943 $142.57M 1.93% — 2026-06-30
11 Horizon Investments, LLC 9,729,670 $131.64M 1.78% — 2026-06-30
12 OSAIC HOLDINGS, INC. Custodian 4,558,553 $116.33M 1.57% — 2026-06-30
13 TOBIAS FINANCIAL ADVISORS, INC. 4,428,126 $113.01M 1.53% — 2026-06-30
14 Willow Creek Wealth Management Inc. 3,934,831 $101.72M 1.38% — 2025-09-30
15 Baker Avenue Asset Management, LP 3,528,562 $90.05M 1.22% — 2026-06-30
16 Wealthcare Advisory Partners LLC 3,206,173 $81.82M 1.11% — 2026-06-30
17 Raymond James Financial, Inc. Custodian 2,933,787 $74.87M 1.01% — 2026-06-30
18 Kingsview Wealth Management, LLC 2,763,710 $70.53M 0.95% — 2026-06-30
19 AlphaStar Capital Management, LLC 2,844,244 $69.29M 0.94% — 2026-09-30
20 Morgan Stanley Custodian 2,688,668 $68.61M 0.93% — 2026-06-30
21 JPMorgan Chase & Co Custodian 2,585,412 $66.26M 0.90% — 2026-06-30
22 CORNERSTONE ADVISORS ASSET MANAGEMENT, LLC 2,534,062 $64.67M 0.87% — 2026-06-30
23 Apella Capital, LLC 2,646,568 $64.34M 0.87% — 2026-09-30
24 WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 2,564,424 $62.52M 0.85% — 2026-09-30
25 Great Lakes Retirement, Inc. 2,424,802 $61.88M 0.84% — 2026-06-30
# Filer Notional Value % of Total Period
# Filer Notional Value % of Total Period
Short Interest & Float

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.

Metric definitions
  • 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.
How to read the signals
  • 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.
History chart
  • 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.

Short Interest
412.52K
SI % of Float
0.10%
Days to Cover
1.00
Short Vol Ratio
44.4%
Free Float
—
Float %
—
Short interest 2026-09-30 • Short volume 2026-10-21
Constituent Performance

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Constituents
Symbol Name Weight % Price 1 Day 1 Week 1 Month