Options Skew Analytics

ET options analytics

ET · Stock

Data as of 9 November 2026 (end of day)

ET options are pricing a 30-day at-the-money volatility of 21.8%, a move of about ±6.3% over the next month. That is higher than 36% of the 207 sessions in its trailing year.

Its 25-delta puts carry 1.86 volatility points more than the calls, around the middle of its own range for the past year.

The term structure is inverted: 90-day volatility is 1% below 30-day, which happens when the market prices something dated into the nearer expirations.

Its next earnings report is 2027-02-02 (estimated from its reporting cadence).

Across its last 6 reports the options market priced an average move of ±4.5% and ET moved 13.4% on average, staying inside the priced band 2 times out of 6.

Current readings

30-day ATM implied volatilityⓘ
21.82%

Prices a move of about ±6.3% over 30 days, or ±1.4% on a typical day.

Higher than 36% of the past year.

25-delta risk reversalⓘ
+1.86

Puts carry 1.86 volatility points more than calls the same distance from the money.

Higher than 43% of the past year.

25-delta butterflyⓘ
+0.06

The wings carry 0.06 volatility points more than at-the-money.

Term structure slopeⓘ
0.986

90-day volatility is 1% below 30-day.

Higher than 34% of the past year.

Where 30-day implied volatility sits

Against 207 prior sessions (one-year window)

21.8% — 36th percentile
15.7%66.1%
IV percentile, 1 year
36%
IV rank, 1 year
12%
IV percentile, 2 years
38%
IV rank, 2 years
12%

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
$19.09
30-day implied forward
$19.13
60-day ATM IV
21.55%
90-day ATM IV
21.51%
180-day ATM IV
22.49%
Expirations used
5
Total open interest
523,094
Put / call open interest
0.21

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 286 sessions

0%20%40%60%80%18 Oct10 Feb2 May5 Aug9 Nov
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-11-0921.82%+1.860.986$19.09
2026-11-0622.06%+1.750.988$18.92
2026-11-0522.19%+0.400.984$19.19
2026-11-0421.82%+0.141.021$19.46
2026-11-03———$20.16
2026-11-0223.57%+3.410.895$20.34
2026-10-3022.12%+4.590.938$20.91
2026-10-2921.75%+2.07—$20.88
2026-10-28———$20.71
2026-10-2722.74%+2.15—$20.41
2026-10-2622.90%+3.50—$20.60
2026-10-2321.99%+3.860.951$20.45
2026-10-2223.30%+1.82—$20.04
2026-10-2123.80%+1.06—$20.13
2026-10-2023.26%+4.16—$19.55
2026-10-1923.71%+1.78—$20.11
2026-10-1625.50%+1.290.807$20.26
2026-10-15———$19.88
2026-10-14———$20.25
2026-10-13———$20.48
2026-10-0222.76%-1.27—$20.47
2026-10-01———$20.10
2026-09-3019.63%+1.34—$19.77
2026-09-2920.63%+1.210.998$19.91
2026-09-2819.29%+1.681.017$20.10
2026-09-2518.54%+0.491.060$20.19
2026-09-2417.83%+0.861.066$20.33
2026-09-2318.08%+1.241.078$20.49
2026-09-2218.42%+1.991.037$20.40
2026-09-2118.62%+1.501.063$20.90
2026-09-1818.05%+1.661.036$21.14
2026-09-1718.13%+1.101.082$21.05
2025-10-0620.66%+1.591.034$16.66
2025-10-03———$16.80
2025-10-02———$16.92
2025-10-0119.91%+3.591.055$16.99
2025-09-3019.46%+2.681.039$17.16
2025-09-29———$17.20
2025-09-2617.75%+2.031.094$17.46
2025-09-2518.31%+1.961.075$17.41
2025-09-2417.44%+1.501.162$17.40
2025-09-2317.35%+1.491.134$17.11
2025-09-2216.67%+1.431.194$17.13
2025-09-1916.79%+1.491.157$17.30
2025-09-1816.99%+0.611.134$17.44
2025-09-17———$17.53
2025-09-16———$17.58
2025-09-15———$17.54
2025-09-12———$17.45
2025-09-11———$17.49
2025-09-10———$17.42
2025-09-09———$17.17
2025-09-0817.50%+2.731.162$17.15
2025-09-05———$17.39
2025-09-04———$17.65
2025-09-0316.70%+1.821.152$17.57
2025-09-02———$17.70
2025-08-2915.81%+3.531.158$17.72
2025-08-2815.74%+1.711.166$17.66
2025-08-2717.50%+2.391.098$17.57
2025-08-2616.79%+2.481.128$17.59
2025-08-2517.45%+1.491.113$17.52
2025-08-2216.37%+2.311.159$17.51
2025-08-2116.73%+1.471.128$17.46
2025-08-2016.64%+1.191.165$17.33
2025-08-19———$17.35
2025-08-1817.74%+3.141.093$17.34
2025-08-1518.52%+1.621.099$17.24
2025-08-1418.24%+1.361.126$17.38
2025-08-13———$17.49
2025-08-12———$17.39
2025-08-1119.35%+2.231.069$17.16
2025-08-0819.36%+1.271.058$17.28
2025-08-0719.85%+2.371.023$17.62
2025-08-0623.65%+2.810.948$17.86
2025-08-0522.64%+2.680.947$17.73
2025-08-0422.20%+1.870.949$17.79
2025-08-0123.42%+3.510.929$17.79
2025-07-3122.23%+2.310.954$18.04
2025-07-3021.88%+2.780.937$18.05
2025-07-2921.68%+3.790.930$18.16
2025-07-2822.22%+4.220.905$17.78
2025-07-2522.33%+2.850.913$17.72
2025-07-2423.24%+4.040.886$17.72
2025-07-2323.53%+5.000.860$17.44
2025-07-2223.51%+3.290.886$17.33
2025-07-2124.10%+4.260.881$17.24
2025-07-18———$17.47
2025-07-17———$17.54
2025-07-1624.15%+4.760.866$17.44
2025-07-1522.32%+5.290.952$17.59
2025-07-1420.86%+3.141.046$17.49
2025-07-11———$17.46
2025-07-10———$17.44
2025-07-09———$17.64
2025-07-08———$17.80
2025-07-0721.94%+2.301.044$17.75
2025-07-0321.46%+4.221.016$17.97
2025-07-02———$17.90
2025-07-0122.02%+3.871.036$17.81
2025-06-3020.17%+1.681.128$18.13
2025-06-27———$18.20
2025-06-2621.73%+3.931.061$18.18
2025-06-2521.99%+2.191.083$17.67
2025-06-2421.02%+2.101.100$17.69
2025-06-2322.76%+2.081.077$17.64
2025-06-20———$17.85
2025-06-1825.67%+2.370.983$17.88
2025-06-17———$17.93
2025-06-1623.51%+2.941.059$18.15
2025-06-13———$18.32
2025-06-1222.50%+3.711.023$18.45
2025-06-1122.04%+2.821.104$18.25
2025-06-1022.13%+3.041.117$17.99
2025-06-0922.54%+1.801.116$17.71
2025-06-0623.17%+0.971.080$17.93
2025-06-0523.09%+0.781.111$17.67
2025-06-0423.17%+3.061.098$17.53
2025-06-0322.11%+3.681.135$17.90
2025-06-0223.24%+3.581.093$17.48

The chart covers every session in the archive, 286 in total. The table lists the most recent 120.

25-delta risk reversal

Last 286 sessions

-5.00.05.010.015.020.018 Oct10 Feb2 May5 Aug9 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

18d (2026-11-27) · 39d (2026-12-18) · 67d (2027-01-15)

15%20%25%30%35%2026-11-27 (18d) — 5Δ C — IV 24.66%2026-11-27 (18d) — 10Δ C — IV 22.14%2026-11-27 (18d) — 15Δ C — IV 21.43%2026-11-27 (18d) — 20Δ C — IV 21.47%2026-11-27 (18d) — 25Δ C — IV 21.79%2026-11-27 (18d) — 30Δ C — IV 22.12%2026-11-27 (18d) — 35Δ C — IV 22.29%2026-11-27 (18d) — 40Δ C — IV 22.36%2026-11-27 (18d) — 45Δ C — IV 22.42%2026-11-27 (18d) — ATM — IV 22.45%2026-11-27 (18d) — 45Δ P — IV 22.47%2026-11-27 (18d) — 40Δ P — IV 22.46%2026-11-27 (18d) — 35Δ P — IV 22.45%2026-11-27 (18d) — 30Δ P — IV 22.44%2026-11-27 (18d) — 25Δ P — IV 22.44%2026-11-27 (18d) — 20Δ P — IV 22.61%2026-11-27 (18d) — 15Δ P — IV 23.23%2026-11-27 (18d) — 10Δ P — IV 25.03%18d2026-12-18 (39d) — 5Δ C — IV 24.61%2026-12-18 (39d) — 10Δ C — IV 22.75%2026-12-18 (39d) — 15Δ C — IV 21.72%2026-12-18 (39d) — 20Δ C — IV 20.98%2026-12-18 (39d) — 25Δ C — IV 20.65%2026-12-18 (39d) — 30Δ C — IV 20.63%2026-12-18 (39d) — 35Δ C — IV 20.78%2026-12-18 (39d) — 40Δ C — IV 21.01%2026-12-18 (39d) — 45Δ C — IV 21.30%2026-12-18 (39d) — ATM — IV 21.59%2026-12-18 (39d) — 45Δ P — IV 21.88%2026-12-18 (39d) — 40Δ P — IV 22.12%2026-12-18 (39d) — 35Δ P — IV 22.36%2026-12-18 (39d) — 30Δ P — IV 22.62%2026-12-18 (39d) — 25Δ P — IV 22.94%2026-12-18 (39d) — 20Δ P — IV 23.41%2026-12-18 (39d) — 15Δ P — IV 24.40%2026-12-18 (39d) — 10Δ P — IV 26.70%2026-12-18 (39d) — 5Δ P — IV 31.11%39d2027-01-15 (67d) — 5Δ C — IV 25.64%2027-01-15 (67d) — 10Δ C — IV 22.25%2027-01-15 (67d) — 15Δ C — IV 21.00%2027-01-15 (67d) — 20Δ C — IV 20.90%2027-01-15 (67d) — 25Δ C — IV 21.02%2027-01-15 (67d) — 30Δ C — IV 21.17%2027-01-15 (67d) — 35Δ C — IV 21.29%2027-01-15 (67d) — 40Δ C — IV 21.38%2027-01-15 (67d) — 45Δ C — IV 21.46%2027-01-15 (67d) — ATM — IV 21.54%2027-01-15 (67d) — 45Δ P — IV 21.64%2027-01-15 (67d) — 40Δ P — IV 21.78%2027-01-15 (67d) — 35Δ P — IV 21.98%2027-01-15 (67d) — 30Δ P — IV 22.26%2027-01-15 (67d) — 25Δ P — IV 22.63%2027-01-15 (67d) — 20Δ P — IV 23.19%2027-01-15 (67d) — 15Δ P — IV 24.24%67d10Δ 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
Delta18d39d67d
5Δ call24.66%24.61%25.64%
10Δ call22.14%22.75%22.25%
15Δ call21.43%21.72%21.00%
20Δ call21.47%20.98%20.90%
25Δ call21.79%20.65%21.02%
30Δ call22.12%20.63%21.17%
35Δ call22.29%20.78%21.29%
40Δ call22.36%21.01%21.38%
45Δ call22.42%21.30%21.46%
ATM22.45%21.59%21.54%
45Δ put22.47%21.88%21.64%
40Δ put22.46%22.12%21.78%
35Δ put22.45%22.36%21.98%
30Δ put22.44%22.62%22.26%
25Δ put22.44%22.94%22.63%
20Δ put22.61%23.41%23.19%
15Δ put23.23%24.40%24.24%
10Δ put25.03%26.70%—
5Δ put—31.11%—

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-11-2718$19.0922.45%22.44%21.79%+0.65-0.347
2026-12-1839$19.1721.59%22.94%20.65%+2.29+0.208
2027-01-1567$19.2421.54%22.63%21.02%+1.61+0.288
2027-03-19130$19.1621.49%23.75%20.57%+3.18+0.676
2027-06-17220$18.9722.95%23.28%21.43%+1.84-0.608

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

5 listed expirations produced a usable reading

21%22%22%23%23%24%2026-11-27 — 18 days — at-the-money IV 22.45%2026-12-18 — 39 days — at-the-money IV 21.59%2027-01-15 — 67 days — at-the-money IV 21.54%2027-03-19 — 130 days — at-the-money IV 21.49%2027-06-17 — 220 days — at-the-money IV 22.95%306090180days 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
2026-11-2718 days$19.0922.45%$19.117
2026-12-1839 days$19.1721.59%$19.218
2027-01-1567 days$19.2421.54%$19.328
2027-03-19130 days$19.1621.49%$19.326
2027-06-17220 days$18.9722.95%$19.288

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
21.82%
60 days
21.55%
90 days
21.51%
180 days
22.49%

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 286 sessions

0.600.801.001.201.4018 Oct7 Feb28 Apr25 Jul9 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

2027-02-02Time not statedEstimated from its reporting cadence

How the pricing has held up

Over the last 6 reports

Landed inside the implied band
2 of 6
33% — about 68% is what an exactly-priced event gives
Mean implied move
4.5%
Mean move that happened
13.4%
absolute

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2026-11-04Time not stated3.7%-1.4%0.38×
2026-11-03Before the open5.2%-0.9%0.17×
2026-08-04Before the open———
2026-05-05Before the open———
2026-02-17Before the open———
2025-11-05After the close———
2025-08-06After the close4.3%+17.9%4.16×
2025-05-06After the close4.9%+33.1%6.76×
2025-02-11After the close4.1%+6.3%1.52×
2024-11-06After the close4.5%+20.8%4.63×
2024-08-07After the close———
2024-05-08After the close———
2024-02-14After the close———
2023-11-01After the close———

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.