Options Skew Analytics

CME options analytics

CME · Stock

Data as of 22 September 2026 (end of day)

CME options are pricing a 30-day at-the-money volatility of 27.1%, a move of about ±7.8% over the next month. Its history here is 230 sessions, short of the 180 a percentile needs, so this reading is not yet ranked against its own past.

Its 25-delta puts carry 1.97 volatility points more than the calls.

The term structure is inverted: 90-day volatility is 5% below 30-day, which happens when the market prices something dated into the nearer expirations.

Its next earnings report is 2026-10-21, before the open.

Across its last 3 reports the options market priced an average move of ±5.0% and CME moved 1.7% on average, staying inside the priced band 3 times out of 3.

Current readings

30-day ATM implied volatilityⓘ
27.11%

Prices a move of about ±7.8% over 30 days, or ±1.7% on a typical day.

25-delta risk reversalⓘ
+1.97

Puts carry 1.97 volatility points more than calls the same distance from the money.

25-delta butterflyⓘ
+0.91

The wings carry 0.91 volatility points more than at-the-money.

Term structure slopeⓘ
0.953

90-day volatility is 5% below 30-day.

Where 30-day implied volatility sits

Against 13 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
$267.21
30-day implied forward
$269.64
60-day ATM IV
26.41%
90-day ATM IV
25.82%
180-day ATM IV
26.82%
Expirations used
11
Total open interest
32,009
Put / call open interest
1.03

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 230 sessions

16%18%20%22%24%26%28%2024-10-16 — 30-day ATM IV 20%2024-10-17 — 30-day ATM IV 20%2025-03-24 — 30-day ATM IV 19%2025-04-17 — 30-day ATM IV 23%2025-04-28 — 30-day ATM IV 19%2025-06-26 — 30-day ATM IV 20%2026-08-24 — 30-day ATM IV 25%2026-09-11 — 30-day ATM IV 23%2026-09-16 — 30-day ATM IV 26%2026-09-17 — 30-day ATM IV 26%2026-09-18 — 30-day ATM IV 25%2026-09-21 — 30-day ATM IV 27%2026-09-22 — 30-day ATM IV 27%16 Oct17 Apr24 Aug17 Sep22 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2227.11%+1.970.953$267.21
2026-09-2126.61%+1.730.962$275.53
2026-09-1824.54%+1.751.037$276.01
2026-09-1725.88%+1.681.000$271.15
2026-09-1625.67%+1.331.025$272.46
2026-09-15———$275.09
2026-09-14———$280.46
2026-09-1123.22%+2.001.116$275.54
2026-09-10———$274.07
2026-09-09———$274.70
2026-09-08———$278.23
2026-09-04———$281.29
2026-09-03———$282.05
2026-09-02———$277.77
2026-09-01———$286.45
2026-08-31———$285.50
2026-08-28———$285.80
2026-08-27———$280.94
2026-08-26———$280.98
2026-08-25———$277.32
2026-08-2424.59%+1.811.072$279.17
2026-08-21———$274.98
2026-08-20———$270.87
2026-08-19———$266.94
2025-06-30———$275.62
2025-06-27———$274.76
2025-06-2619.94%+2.011.077$272.83
2025-06-25———$273.03
2025-06-24———$271.38
2025-06-23———$272.66
2025-06-20———$273.99
2025-06-18———$272.10
2025-06-17———$269.70
2025-06-16———$267.51
2025-06-13———$269.50
2025-06-12———$270.96
2025-06-11———$269.65
2025-06-10———$266.10
2025-06-09———$268.35
2025-06-06———$274.24
2025-06-05———$274.90
2025-06-04———$277.88
2025-06-03———$282.31
2025-06-02———$290.71
2025-05-30———$289.00
2025-05-29———$285.87
2025-05-28———$285.98
2025-05-27———$284.36
2025-05-23———$284.07
2025-05-22———$282.00
2025-05-21———$281.74
2025-05-20———$277.87
2025-05-19———$277.94
2025-05-16———$276.29
2025-05-15———$274.00
2025-05-14———$266.28
2025-05-13———$268.34
2025-05-12———$270.47
2025-05-09———$284.35
2025-05-08———$281.99
2025-05-07———$284.82
2025-05-06———$282.98
2025-05-05———$282.56
2025-05-02———$280.45
2025-05-01———$277.11
2025-04-30———$277.08
2025-04-29———$272.36
2025-04-2819.01%+5.061.046$267.92
2025-04-25———$266.30
2025-04-24———$263.27
2025-04-23———$261.48
2025-04-22———$265.56
2025-04-21———$260.33
2025-04-1722.55%+6.000.957$262.53
2025-04-16———$261.39
2025-04-15———$262.87
2025-04-14———$263.69
2025-04-11———$261.54
2025-04-10———$258.39
2025-04-09———$254.13
2025-04-08———$255.03
2025-04-07———$252.37
2025-04-04———$254.46
2025-04-03———$268.36
2025-04-02———$262.54
2025-04-01———$262.24
2025-03-31———$265.29
2025-03-28———$262.22
2025-03-27———$261.85
2025-03-26———$262.72
2025-03-25———$262.06
2025-03-2418.55%+2.111.037$262.94
2025-03-21———$263.35
2025-03-20———$266.54
2025-03-19———$265.47
2025-03-18———$266.49
2025-03-17———$263.58
2025-03-14———$258.68
2025-03-13———$259.84
2025-03-12———$256.72
2025-03-11———$260.43
2025-03-10———$262.28
2025-03-07———$254.57
2025-03-06———$254.04
2025-03-05———$254.48
2025-03-04———$251.98
2025-03-03———$256.88
2025-02-28———$253.77
2025-02-27———$249.85
2025-02-26———$247.99
2025-02-25———$250.82
2025-02-24———$247.75
2025-02-21———$248.87
2025-02-20———$248.32
2025-02-19———$250.75
2025-02-18———$247.85
2025-02-14———$245.48
2025-02-13———$250.11
2025-02-12———$248.96
2025-02-11———$241.74

The chart covers every session in the archive, 230 in total. The table lists the most recent 120.

25-delta risk reversal

Last 230 sessions

-2.00.02.04.06.08.02024-10-16 — 25-delta RR (volatility points) 2.72024-10-17 — 25-delta RR (volatility points) 2.22025-03-24 — 25-delta RR (volatility points) 2.12025-04-17 — 25-delta RR (volatility points) 6.02025-04-28 — 25-delta RR (volatility points) 5.12025-06-26 — 25-delta RR (volatility points) 2.02026-08-24 — 25-delta RR (volatility points) 1.82026-09-11 — 25-delta RR (volatility points) 2.02026-09-16 — 25-delta RR (volatility points) 1.32026-09-17 — 25-delta RR (volatility points) 1.72026-09-18 — 25-delta RR (volatility points) 1.72026-09-21 — 25-delta RR (volatility points) 1.72026-09-22 — 25-delta RR (volatility points) 2.016 Oct17 Apr24 Aug17 Sep22 Sep

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

3d (2026-09-25) · 10d (2026-10-02) · 17d (2026-10-09)

22%24%26%28%30%32%2026-09-25 (3d) — 5Δ C — IV 29.54%2026-09-25 (3d) — 10Δ C — IV 27.42%2026-09-25 (3d) — 15Δ C — IV 26.46%2026-09-25 (3d) — 20Δ C — IV 25.84%2026-09-25 (3d) — 25Δ C — IV 25.42%2026-09-25 (3d) — 30Δ C — IV 25.33%2026-09-25 (3d) — 35Δ C — IV 25.31%2026-09-25 (3d) — 40Δ C — IV 25.30%2026-09-25 (3d) — 45Δ C — IV 25.39%2026-09-25 (3d) — ATM — IV 25.98%2026-09-25 (3d) — 45Δ P — IV 26.80%2026-09-25 (3d) — 40Δ P — IV 27.39%2026-09-25 (3d) — 35Δ P — IV 27.80%2026-09-25 (3d) — 30Δ P — IV 28.20%2026-09-25 (3d) — 25Δ P — IV 28.65%2026-09-25 (3d) — 20Δ P — IV 29.16%3d2026-10-02 (10d) — 25Δ C — IV 23.28%2026-10-02 (10d) — 30Δ C — IV 23.50%2026-10-02 (10d) — 35Δ C — IV 23.81%2026-10-02 (10d) — 40Δ C — IV 24.14%2026-10-02 (10d) — 45Δ C — IV 24.44%2026-10-02 (10d) — ATM — IV 24.51%2026-10-02 (10d) — 45Δ P — IV 24.53%2026-10-02 (10d) — 40Δ P — IV 24.61%2026-10-02 (10d) — 35Δ P — IV 24.75%2026-10-02 (10d) — 30Δ P — IV 24.92%2026-10-02 (10d) — 25Δ P — IV 25.18%2026-10-02 (10d) — 20Δ P — IV 25.48%2026-10-02 (10d) — 15Δ P — IV 25.63%10d2026-10-09 (17d) — 25Δ C — IV 23.70%2026-10-09 (17d) — 30Δ C — IV 24.01%2026-10-09 (17d) — 35Δ C — IV 24.30%2026-10-09 (17d) — 40Δ C — IV 24.63%2026-10-09 (17d) — 45Δ C — IV 24.91%2026-10-09 (17d) — ATM — IV 24.96%2026-10-09 (17d) — 45Δ P — IV 24.80%2026-10-09 (17d) — 40Δ P — IV 25.28%2026-10-09 (17d) — 35Δ P — IV 25.44%2026-10-09 (17d) — 30Δ P — IV 25.46%2026-10-09 (17d) — 25Δ P — IV 25.49%2026-10-09 (17d) — 20Δ P — IV 25.59%2026-10-09 (17d) — 15Δ P — IV 25.81%2026-10-09 (17d) — 10Δ P — IV 26.65%17d10Δ 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
Delta3d10d17d
5Δ call29.54%——
10Δ call27.42%——
15Δ call26.46%——
20Δ call25.84%——
25Δ call25.42%23.28%23.70%
30Δ call25.33%23.50%24.01%
35Δ call25.31%23.81%24.30%
40Δ call25.30%24.14%24.63%
45Δ call25.39%24.44%24.91%
ATM25.98%24.51%24.96%
45Δ put26.80%24.53%24.80%
40Δ put27.39%24.61%25.28%
35Δ put27.80%24.75%25.44%
30Δ put28.20%24.92%25.46%
25Δ put28.65%25.18%25.49%
20Δ put29.16%25.48%25.59%
15Δ put—25.63%25.81%
10Δ put——26.65%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-09-253$268.7725.98%28.65%25.42%+3.23+1.067
2026-10-0210$268.8524.51%25.18%23.28%+1.90-0.289
2026-10-0917$269.0024.96%25.49%23.70%+1.79-0.368
2026-10-1624$269.3023.81%24.89%23.09%+1.80+0.1815
2026-10-2331$269.7027.50%29.49%27.50%+1.99+0.998
2026-10-3038$270.1026.98%28.57%26.61%+1.96+0.619
2026-11-2059$270.3526.43%27.69%25.55%+2.13+0.199
2026-12-1887$270.3025.88%27.21%25.00%+2.20+0.2310
2027-01-15115$270.8125.46%26.62%24.78%+1.84+0.2410
2027-03-19178$269.6926.85%28.33%25.94%+2.39+0.2916
2027-06-17268$269.8525.99%27.33%25.06%+2.27+0.2016

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

11 listed expirations produced a usable reading

23%24%25%26%27%28%2026-09-25 — 3 days — at-the-money IV 25.98%2026-10-02 — 10 days — at-the-money IV 24.51%2026-10-09 — 17 days — at-the-money IV 24.96%2026-10-16 — 24 days — at-the-money IV 23.81%2026-10-23 — 31 days — at-the-money IV 27.50%2026-10-30 — 38 days — at-the-money IV 26.98%2026-11-20 — 59 days — at-the-money IV 26.43%2026-12-18 — 87 days — at-the-money IV 25.88%2027-01-15 — 115 days — at-the-money IV 25.46%2027-03-19 — 178 days — at-the-money IV 26.85%2027-06-17 — 268 days — at-the-money IV 25.99%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
2026-09-253 days$268.7725.98%$268.857
2026-10-0210 days$268.8524.51%$269.079
2026-10-0917 days$269.0024.96%$269.398
2026-10-1624 days$269.3023.81%$269.8015
2026-10-2331 days$269.7027.50%$270.578
2026-10-3038 days$270.1026.98%$271.139
2026-11-2059 days$270.3526.43%$271.889
2026-12-1887 days$270.3025.88%$272.4710
2027-01-15115 days$270.8125.46%$273.5910
2027-03-19178 days$269.6926.85%$274.4816
2027-06-17268 days$269.8525.99%$276.6216

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
27.11%
60 days
26.41%
90 days
25.82%
180 days
26.82%

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 230 sessions

0.900.951.001.051.101.152024-10-16 — 90-day over 30-day 1.022024-10-17 — 90-day over 30-day 1.042025-03-24 — 90-day over 30-day 1.042025-04-17 — 90-day over 30-day 0.962025-04-28 — 90-day over 30-day 1.052025-06-26 — 90-day over 30-day 1.082026-08-24 — 90-day over 30-day 1.072026-09-11 — 90-day over 30-day 1.122026-09-16 — 90-day over 30-day 1.022026-09-17 — 90-day over 30-day 1.002026-09-18 — 90-day over 30-day 1.042026-09-21 — 90-day over 30-day 0.962026-09-22 — 90-day over 30-day 0.9516 Oct17 Apr24 Aug17 Sep22 Sep

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

2026-10-21Before the openAnnounced

How the pricing has held up

Over the last 3 reports

Landed inside the implied band
3 of 3
100% — about 68% is what an exactly-priced event gives
Mean implied move
5.0%
Mean move that happened
1.7%
absolute

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2026-07-22Before the open———
2026-04-22Before the open———
2026-02-04Before the open———
2025-10-22Before the open———
2025-07-23Before the open———
2025-04-23Before the open5.8%-1.5%0.26×
2025-02-12Before the open3.8%+3.0%0.78×
2024-10-23Before the open5.4%+0.4%0.08×
2024-07-24Before the open———
2024-04-24Before the open———
2024-02-14Before the open———
2023-10-25Before 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.