Options Skew Analytics

CBOE options analytics

CBOE · Stock

Data as of 6 November 2026 (end of day)

CBOE options are pricing a 30-day at-the-money volatility of 35.9%, a move of about ±10.3% over the next month. Its history here is 325 sessions, short of the 180 a percentile needs, so this reading is not yet ranked against its own past.

Its 25-delta puts carry 2.33 volatility points more than the calls.

The term structure is inverted: 90-day volatility is 2% below 30-day, which happens when the market prices something dated into the nearer expirations.

Its next earnings report is 2027-01-29 (estimated from its reporting cadence).

Across its last 5 reports the options market priced an average move of ±5.0% and CBOE moved 3.1% on average, staying inside the priced band 5 times out of 5.

Current readings

30-day ATM implied volatilityⓘ
35.92%

Prices a move of about ±10.3% over 30 days, or ±2.3% on a typical day.

25-delta risk reversalⓘ
+2.33

Puts carry 2.33 volatility points more than calls the same distance from the money.

25-delta butterflyⓘ
+0.29

The wings carry 0.29 volatility points more than at-the-money.

Term structure slopeⓘ
0.983

90-day volatility is 2% below 30-day.

Where 30-day implied volatility sits

Against 103 prior sessions (one-year window)

Not enough history in this window to place the current reading.

IV percentile, 1 year
—
IV rank, 1 year
—
IV percentile, 2 years
—
IV rank, 2 years
—

Rank is the position between the lowest and highest readings in the window, so a single past extreme pins everything after it near one end. Percentile is the share of sessions below the current reading and is unaffected by how far that extreme reached. Both are withheld when the window holds fewer than 180 sessions.

Session detail

Underlying close
$353.27
30-day implied forward
$355.00
60-day ATM IV
34.86%
90-day ATM IV
35.31%
180-day ATM IV
36.37%
Expirations used
7
Total open interest
28,479
Put / call open interest
0.27

The forward is derived from put-call parity on the strikes nearest the money, not taken from the underlying close. It is what every moneyness and delta on this page is measured against.

30-day at-the-money implied volatility

Last 325 sessions

10%20%30%40%50%29 Aug16 Jan14 Jul17 Sep6 Nov
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-11-0635.92%+2.330.983$353.27
2026-11-0537.66%+2.200.949$353.07
2026-11-0436.52%+2.390.981$345.21
2026-11-0338.77%+1.920.964$344.28
2026-11-0238.40%+2.110.959$349.22
2026-10-30———$335.53
2026-10-2940.74%+0.450.898$314.25
2026-10-28———$320.42
2026-10-2738.11%+1.600.924$324.68
2026-10-2638.05%+0.480.927$335.25
2026-10-2337.47%-0.180.940$340.42
2026-10-2239.46%+0.650.918$327.72
2026-10-2138.86%+0.010.918$318.82
2026-10-2039.42%+1.250.914$315.00
2026-10-1939.75%+1.130.896$306.47
2026-10-1639.47%+0.830.906$314.98
2026-10-15———$308.09
2026-10-1442.42%+0.570.902$300.47
2026-10-1340.96%+1.510.879$292.25
2026-10-0939.82%+2.010.907$304.16
2026-10-08———$294.08
2026-10-0740.07%+3.880.906$281.57
2026-10-0639.82%+0.940.915$278.20
2026-10-0539.02%+4.510.938$277.47
2026-10-0240.08%+4.660.917$271.26
2026-10-0140.12%+1.890.934$277.19
2026-09-3041.47%+3.370.926$275.29
2026-09-2940.95%+2.540.907$261.75
2026-09-2837.18%+2.570.947$253.26
2026-09-2535.90%+2.480.977$258.03
2026-09-2436.43%+1.500.976$267.57
2026-09-2333.73%+2.611.026$268.87
2026-09-2234.82%+3.031.012$266.83
2026-09-2134.56%+2.561.006$271.43
2026-09-1833.96%+2.631.040$272.86
2026-09-1734.66%+2.961.034$266.67
2026-09-1638.47%+1.320.991$270.43
2026-09-15———$270.44
2026-09-14———$284.50
2026-09-11———$281.04
2026-09-10———$287.49
2026-09-09———$291.87
2026-09-08———$293.33
2026-09-04———$298.38
2026-09-03———$298.50
2026-09-02———$294.12
2026-09-01———$307.62
2026-08-31———$300.20
2026-08-28———$310.45
2026-08-27———$313.95
2026-08-2633.20%+1.581.037$312.19
2026-08-25———$308.82
2026-08-24———$308.09
2026-08-21———$300.74
2026-08-20———$294.11
2026-08-19———$280.75
2025-09-2921.73%+2.781.064$246.24
2025-09-2621.07%+2.131.102$243.52
2025-09-2521.50%+0.991.087$243.99
2025-09-24———$243.19
2025-09-23———$240.32
2025-09-2223.52%+4.571.033$236.62
2025-09-19———$233.06
2025-09-1822.51%+3.330.999$234.43
2025-09-1721.94%+3.221.025$236.96
2025-09-16———$233.74
2025-09-15———$234.09
2025-09-12———$234.21
2025-09-11———$236.37
2025-09-10———$234.51
2025-09-0921.98%+3.151.004$232.43
2025-09-0821.36%+3.021.036$234.37
2025-09-0522.91%+4.181.005$232.58
2025-09-0422.13%+3.201.014$234.17
2025-09-0322.49%+1.791.005$235.41
2025-09-0221.90%+2.761.030$231.88
2025-08-2920.79%+2.941.056$235.95
2025-08-2820.95%+2.871.047$235.26
2025-08-27———$237.95
2025-08-2620.23%+3.411.051$242.76
2025-08-2520.21%+4.421.065$249.08
2025-08-2218.65%+3.771.127$246.43
2025-08-2119.82%+3.051.088$249.25
2025-08-2018.59%+3.951.168$251.93
2025-08-19———$246.13
2025-08-18———$245.96
2025-08-15———$247.63
2025-08-1419.75%+1.961.063$243.71
2025-08-13———$245.43
2025-08-12———$248.52
2025-08-11———$253.24
2025-08-08———$252.58
2025-08-07———$249.50
2025-08-0620.78%+3.791.020$248.10
2025-08-05———$248.79
2025-08-0420.26%+4.151.020$250.87
2025-08-01———$247.79
2025-07-31———$241.04
2025-07-3023.32%+3.240.955$241.68
2025-07-2924.56%+2.410.916$239.76
2025-07-2822.99%+3.020.963$241.54
2025-07-2523.25%+2.620.958$246.51
2025-07-2423.51%+3.040.913$245.91
2025-07-2323.42%+4.120.937$240.75
2025-07-22———$241.18
2025-07-21———$236.26
2025-07-18———$238.62
2025-07-17———$237.84
2025-07-16———$237.10
2025-07-15———$233.95
2025-07-1421.60%+2.591.030$235.96
2025-07-1121.89%+4.051.023$235.01
2025-07-10———$234.43
2025-07-09———$232.06
2025-07-08———$232.54
2025-07-07———$235.22
2025-07-03———$231.37
2025-07-02———$231.35
2025-07-01———$232.00
2025-06-30———$233.21

The chart covers every session in the archive, 325 in total. The table lists the most recent 120.

25-delta risk reversal

Last 325 sessions

-5.00.05.010.029 Aug16 Jan14 Jul17 Sep6 Nov

The dashed line marks zero, where the 25-delta put and call carry the same implied volatility.

Skew curve

Implied volatility by delta, front expirations

Implied volatility by delta

7d (2026-11-13) · 14d (2026-11-20) · 28d (2026-12-04)

32%34%36%38%40%42%2026-11-13 (7d) — 25Δ C — IV 36.91%2026-11-13 (7d) — 30Δ C — IV 36.44%2026-11-13 (7d) — 35Δ C — IV 36.08%2026-11-13 (7d) — 40Δ C — IV 37.72%2026-11-13 (7d) — 45Δ C — IV 37.64%2026-11-13 (7d) — ATM — IV 37.40%2026-11-13 (7d) — 45Δ P — IV 38.04%2026-11-13 (7d) — 40Δ P — IV 39.14%2026-11-13 (7d) — 35Δ P — IV 38.80%2026-11-13 (7d) — 30Δ P — IV 39.40%2026-11-13 (7d) — 25Δ P — IV 40.20%7d2026-11-20 (14d) — 20Δ C — IV 36.33%2026-11-20 (14d) — 25Δ C — IV 36.58%2026-11-20 (14d) — 30Δ C — IV 36.82%2026-11-20 (14d) — 35Δ C — IV 37.15%2026-11-20 (14d) — 40Δ C — IV 37.35%2026-11-20 (14d) — 45Δ C — IV 37.26%2026-11-20 (14d) — ATM — IV 37.56%2026-11-20 (14d) — 45Δ P — IV 37.78%2026-11-20 (14d) — 40Δ P — IV 37.97%2026-11-20 (14d) — 35Δ P — IV 38.29%2026-11-20 (14d) — 30Δ P — IV 37.97%2026-11-20 (14d) — 25Δ P — IV 37.97%2026-11-20 (14d) — 20Δ P — IV 39.47%14d2026-12-04 (28d) — 15Δ C — IV 34.45%2026-12-04 (28d) — 20Δ C — IV 35.23%2026-12-04 (28d) — 25Δ C — IV 35.27%2026-12-04 (28d) — 30Δ C — IV 35.22%2026-12-04 (28d) — 35Δ C — IV 35.84%2026-12-04 (28d) — 40Δ C — IV 35.82%2026-12-04 (28d) — 45Δ C — IV 35.88%2026-12-04 (28d) — ATM — IV 36.10%2026-12-04 (28d) — 45Δ P — IV 36.40%2026-12-04 (28d) — 40Δ P — IV 36.75%2026-12-04 (28d) — 35Δ P — IV 37.29%2026-12-04 (28d) — 30Δ P — IV 37.56%2026-12-04 (28d) — 25Δ P — IV 37.68%28d10Δ C25Δ CATM25Δ P10Δ Pout-of-the-money calls ← delta → out-of-the-money puts

The axis is call delta. Readings to the right of the dashed centre line are taken from the out-of-the-money put at that strike, which is the contract whose quote the volatility was solved from. Points are only plotted where surviving quotes bracket the delta on both sides; nothing is extrapolated past the last traded strike.

Show the underlying numbers
Delta7d14d28d
15Δ call——34.45%
20Δ call—36.33%35.23%
25Δ call36.91%36.58%35.27%
30Δ call36.44%36.82%35.22%
35Δ call36.08%37.15%35.84%
40Δ call37.72%37.35%35.82%
45Δ call37.64%37.26%35.88%
ATM37.40%37.56%36.10%
45Δ put38.04%37.78%36.40%
40Δ put39.14%37.97%36.75%
35Δ put38.80%38.29%37.29%
30Δ put39.40%37.97%37.56%
25Δ put40.20%37.97%37.68%
20Δ put—39.47%—

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-11-137$354.8537.40%40.20%36.91%+3.29+1.1612
2026-11-2014$355.0537.56%37.97%36.58%+1.39-0.2911
2026-12-0428$354.9736.10%37.68%35.27%+2.41+0.388
2026-12-1842$355.2335.17%36.09%34.09%+2.00-0.0814
2027-01-1570$356.4234.76%36.09%34.00%+2.09+0.2915
2027-03-19133$359.2935.92%37.97%35.23%+2.74+0.6817
2027-06-17223$362.2536.60%38.29%36.02%+2.26+0.5527

Each curve above is one expiration. The vertical position is implied volatility; the horizontal position is the delta of the contract it was read from. For US equities the curve normally slopes upward to the right, meaning out-of-the-money puts carry higher implied volatility than equidistant calls.

The 25-delta risk reversal summarises that slope as a single number: the 25-delta put volatility minus the 25-delta call volatility. The butterfly summarises the curvature: the average of the two wings minus the at-the-money reading.

Term structure

At-the-money implied volatility by expiration

At-the-money implied volatility by expiration

7 listed expirations produced a usable reading

34%35%36%37%38%2026-11-13 — 7 days — at-the-money IV 37.40%2026-11-20 — 14 days — at-the-money IV 37.56%2026-12-04 — 28 days — at-the-money IV 36.10%2026-12-18 — 42 days — at-the-money IV 35.17%2027-01-15 — 70 days — at-the-money IV 34.76%2027-03-19 — 133 days — at-the-money IV 35.92%2027-06-17 — 223 days — at-the-money IV 36.60%7306090180days to expiration

The horizontal axis is the square root of days to expiration, which is the scale volatility lives on. A curve that is flat in variance terms plots as a straight line here rather than bending sharply through the front week.

Show the underlying numbers
ExpirationDaysForwardATM IVATM strikeQuotes used
2026-11-137 days$354.8537.40%$355.3312
2026-11-2014 days$355.0537.56%$356.0111
2026-12-0428 days$354.9736.10%$356.748
2026-12-1842 days$355.2335.17%$357.7714
2027-01-1570 days$356.4234.76%$360.5715
2027-03-19133 days$359.2935.92%$367.8417
2027-06-17223 days$362.2536.60%$377.3927

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
35.92%
60 days
34.86%
90 days
35.31%
180 days
36.37%

Interpolation is linear in total variance, not in volatility. Interpolating volatility directly implies a forward variance that can be negative between two expirations. A tenor beyond the longest listed expiration is reported as unavailable rather than extrapolated.

Term structure slope

Last 325 sessions

0.800.901.001.101.2029 Aug21 Jan23 Jul17 Sep6 Nov

The dashed line marks 1.00, where the 90-day and 30-day at-the-money volatilities are equal. Above it the longer tenor carries the higher volatility.

The term structure is the at-the-money implied volatility of each listed expiration, plotted against how far away that expiration is. Its usual shape for a calm underlying slopes gently upward, because a longer horizon admits more uncertainty.

It inverts when the market prices a dated event: an expiration that captures a scheduled announcement carries the variance of that event on top of ordinary trading, so a shorter contract can print a higher volatility than a longer one.

Earnings

What the options priced in before each report, and what happened

Next report

2027-01-29Time not statedEstimated from its reporting cadence

How the pricing has held up

Over the last 5 reports

Landed inside the implied band
5 of 5
100% — about 68% is what an exactly-priced event gives
Mean implied move
5.0%
Mean move that happened
3.1%
absolute

Reports

Newest first. The implied move is one standard deviation, priced from the session before the release.

ReportSessionImplied ±RealisedRealised / implied
2026-10-30Before the open7.0%+6.8%0.97×
2026-07-31Before the open———
2026-05-01Before the open———
2026-02-06Before the open———
2025-10-31Before the open———
2025-08-01Before the open4.3%+2.8%0.64×
2025-05-02Before the open4.0%+2.3%0.59×
2025-02-07Before the open3.8%+2.0%0.53×
2024-11-01Before the open6.0%-1.7%0.28×
2024-08-02Before the open———
2024-05-03Before the open———
2024-02-02Before the open———
2023-11-03Before the open———

The implied move is read from the at-the-money straddle on the first expiration strictly after the report date, converted to a one-standard-deviation move and divided by the forward. Realised moves are the close-to-close return across the event, measured from the session before the release to the session after it.

Report dates that have already happened come from the company’s own 8-K filing and are exact. A date still in the future is either one the company has announced, or an estimate from its reporting cadence.