Options Skew Analytics

CI options analytics

CI · Stock

Data as of 22 September 2026 (end of day)

CI options are pricing a 30-day at-the-money volatility of 28.7%, a move of about ±8.2% over the next month. That is higher than 56% of the 202 sessions in its trailing year.

Its 25-delta puts carry 1.43 volatility points more than the calls, closer together than on 94% of the past year.

Longer-dated options carry more: 90-day volatility is 7% above 30-day.

Its next earnings report is 2026-10-29 (estimated from its reporting cadence).

Across its last 3 reports the options market priced an average move of ±7.3% and CI moved 2.5% on average, staying inside the priced band 3 times out of 3.

Current readings

30-day ATM implied volatilityⓘ
28.72%

Prices a move of about ±8.2% over 30 days, or ±1.8% on a typical day.

Higher than 56% of the past year.

25-delta risk reversalⓘ
+1.43

Puts carry 1.43 volatility points more than calls the same distance from the money.

Higher than 6% of the past year.

25-delta butterflyⓘ
+0.38

The wings carry 0.38 volatility points more than at-the-money.

Term structure slopeⓘ
1.068

90-day volatility is 7% above 30-day.

Higher than 68% of the past year.

Where 30-day implied volatility sits

Against 202 prior sessions (one-year window)

28.7% — 56th percentile
18.2%44.7%
IV percentile, 1 year
56%
IV rank, 1 year
40%
IV percentile, 2 years
56%
IV rank, 2 years
40%

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
$273.74
30-day implied forward
$275.71
60-day ATM IV
32.29%
90-day ATM IV
30.67%
180-day ATM IV
31.32%
Expirations used
11
Total open interest
56,952
Put / call open interest
0.59

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

10%20%30%40%50%29 Aug14 Nov4 Feb28 Apr22 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2228.72%+1.431.068$273.74
2026-09-2128.66%+1.101.075$274.47
2026-09-1828.48%+2.581.069$275.28
2026-09-1728.75%+1.441.088$276.00
2026-09-1629.26%+0.061.053$280.45
2026-09-15———$288.90
2026-09-14———$290.05
2026-09-11———$280.76
2026-09-10———$280.91
2026-09-09———$278.17
2026-09-08———$275.83
2026-09-04———$282.52
2026-09-03———$286.26
2026-09-02———$282.84
2026-09-0126.17%+1.661.113$283.06
2026-08-3127.95%+2.271.077$276.08
2026-08-2827.22%+2.041.089$278.88
2026-08-27———$277.67
2026-08-2626.19%+2.971.099$280.87
2026-08-25———$279.32
2026-08-2426.78%+3.411.085$280.45
2026-08-21———$277.51
2026-08-20———$274.41
2026-08-19———$277.45
2025-06-3030.00%+3.200.885$330.58
2025-06-27———$326.31
2025-06-2624.14%+3.021.122$330.00
2025-06-2522.29%+3.061.218$316.00
2025-06-2424.30%+2.591.106$316.83
2025-06-2327.12%+3.441.010$316.97
2025-06-20———$314.35
2025-06-1823.95%+3.721.180$314.40
2025-06-1724.51%+2.871.164$312.51
2025-06-16———$314.44
2025-06-1323.39%+3.911.172$317.40
2025-06-1225.19%+2.811.074$315.37
2025-06-1123.55%+2.841.167$310.20
2025-06-1023.93%+3.081.149$313.62
2025-06-0924.70%+3.351.138$311.40
2025-06-0623.77%+3.091.163$312.18
2025-06-0525.77%+2.301.077$311.02
2025-06-0424.97%+3.551.111$310.12
2025-06-0325.83%+2.681.069$311.67
2025-06-0225.64%+3.641.085$314.99
2025-05-3025.26%+2.291.094$316.64
2025-05-2925.26%+3.011.098$312.05
2025-05-2826.64%+3.281.044$310.86
2025-05-2726.22%+3.581.080$315.28
2025-05-2326.30%+3.881.074$315.99
2025-05-2226.92%+3.521.063$312.68
2025-05-2126.99%+4.071.046$317.09
2025-05-2025.57%+2.961.066$325.00
2025-05-1926.30%+3.411.050$321.96
2025-05-1625.71%+1.971.042$320.94
2025-05-1527.42%+3.091.016$308.86
2025-05-1427.55%+3.450.999$303.35
2025-05-1326.63%+3.901.006$301.89
2025-05-1223.75%+3.661.051$315.74
2025-05-0923.97%+4.111.047$333.46
2025-05-0823.39%+2.611.081$333.11
2025-05-0723.74%+3.151.065$334.44
2025-05-0625.20%+3.821.016$333.82
2025-05-0523.98%+3.701.064$333.01
2025-05-0223.62%+3.501.070$334.75
2025-05-0132.44%+5.330.861$335.18
2025-04-3032.25%+5.460.875$340.04
2025-04-2932.99%+5.030.847$337.21
2025-04-2833.77%+4.890.831$334.82
2025-04-2532.18%+4.420.864$335.36
2025-04-2433.20%+3.720.839$335.70
2025-04-2333.28%+4.700.841$336.69
2025-04-2233.78%+5.330.847$337.07
2025-04-2137.16%+6.130.844$324.77
2025-04-1731.94%+5.910.912$330.13
2025-04-1633.06%+5.000.853$329.44
2025-04-1533.45%+6.520.833$328.63
2025-04-1432.68%+5.170.831$329.20
2025-04-11———$330.19
2025-04-10———$327.27
2025-04-09———$319.99
2025-04-08———$313.84
2025-04-0740.06%+4.490.871$315.39
2025-04-04———$322.40
2025-04-0329.63%+3.301.001$338.45
2025-04-0231.61%+2.710.899$331.92
2025-04-0130.89%+3.390.905$331.00
2025-03-3130.75%+4.080.930$329.00
2025-03-2827.90%+2.001.048$325.04
2025-03-2728.27%+3.440.970$324.74
2025-03-2629.59%+3.220.945$321.23
2025-03-2525.74%+2.461.072$316.84
2025-03-2424.94%+4.891.136$320.40
2025-03-2125.94%+2.821.103$316.65
2025-03-2027.36%+4.481.066$321.39
2025-03-1927.62%+3.861.077$320.83
2025-03-1828.52%+3.931.033$322.43
2025-03-1728.27%+5.861.026$316.80
2025-03-1429.52%+4.631.018$312.90
2025-03-1331.29%+3.480.977$311.99
2025-03-1230.97%+4.031.006$311.05
2025-03-11———$317.87
2025-03-1031.39%+4.700.989$326.68
2025-03-0729.41%+1.581.018$321.02
2025-03-0629.26%+1.781.040$315.63
2025-03-0529.79%+3.421.020$309.83
2025-03-0430.84%+3.850.984$308.86
2025-03-0330.44%+2.830.966$311.51
2025-02-2830.60%+2.150.992$308.85
2025-02-2732.18%+3.000.953$302.92
2025-02-2631.50%+1.880.959$305.34
2025-02-2530.23%+2.651.001$313.90
2025-02-2431.49%+3.780.953$301.02
2025-02-2129.22%+3.151.016$299.81
2025-02-2028.00%+0.251.019$299.68
2025-02-1927.40%+1.871.018$297.23
2025-02-1825.39%+4.211.109$294.75
2025-02-1426.57%+1.771.062$292.32
2025-02-1326.32%+1.871.043$299.82
2025-02-1227.15%+2.461.034$292.69
2025-02-1126.97%+2.571.016$295.24

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

-5.00.05.010.015.029 Aug14 Nov4 Feb28 Apr22 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) · 17d (2026-10-09) · 24d (2026-10-16)

28%29%30%31%32%33%2026-09-25 (3d) — 20Δ C — IV 29.95%2026-09-25 (3d) — 25Δ C — IV 29.09%2026-09-25 (3d) — 30Δ C — IV 29.21%2026-09-25 (3d) — 35Δ C — IV 29.44%2026-09-25 (3d) — 40Δ C — IV 29.48%2026-09-25 (3d) — 45Δ C — IV 29.46%2026-09-25 (3d) — ATM — IV 29.42%2026-09-25 (3d) — 45Δ P — IV 29.35%2026-09-25 (3d) — 40Δ P — IV 29.25%2026-09-25 (3d) — 35Δ P — IV 29.20%2026-09-25 (3d) — 30Δ P — IV 29.29%2026-09-25 (3d) — 25Δ P — IV 29.53%2026-09-25 (3d) — 20Δ P — IV 30.31%3d2026-10-09 (17d) — 20Δ C — IV 29.92%2026-10-09 (17d) — 25Δ C — IV 29.89%2026-10-09 (17d) — 30Δ C — IV 30.02%2026-10-09 (17d) — 35Δ C — IV 29.94%2026-10-09 (17d) — 40Δ C — IV 29.81%2026-10-09 (17d) — 45Δ C — IV 29.84%2026-10-09 (17d) — ATM — IV 29.96%2026-10-09 (17d) — 45Δ P — IV 30.10%2026-10-09 (17d) — 40Δ P — IV 30.27%2026-10-09 (17d) — 35Δ P — IV 30.49%2026-10-09 (17d) — 30Δ P — IV 30.81%2026-10-09 (17d) — 25Δ P — IV 31.31%2026-10-09 (17d) — 20Δ P — IV 32.11%17d2026-10-16 (24d) — 15Δ C — IV 29.28%2026-10-16 (24d) — 20Δ C — IV 28.70%2026-10-16 (24d) — 25Δ C — IV 28.73%2026-10-16 (24d) — 30Δ C — IV 28.53%2026-10-16 (24d) — 35Δ C — IV 28.56%2026-10-16 (24d) — 40Δ C — IV 29.18%2026-10-16 (24d) — 45Δ C — IV 29.29%2026-10-16 (24d) — ATM — IV 28.85%2026-10-16 (24d) — 45Δ P — IV 28.76%2026-10-16 (24d) — 40Δ P — IV 28.81%2026-10-16 (24d) — 35Δ P — IV 29.63%2026-10-16 (24d) — 30Δ P — IV 29.33%2026-10-16 (24d) — 25Δ P — IV 30.38%2026-10-16 (24d) — 20Δ P — IV 30.02%2026-10-16 (24d) — 15Δ P — IV 31.11%2026-10-16 (24d) — 10Δ P — IV 31.85%24d10Δ 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
Delta3d17d24d
15Δ call——29.28%
20Δ call29.95%29.92%28.70%
25Δ call29.09%29.89%28.73%
30Δ call29.21%30.02%28.53%
35Δ call29.44%29.94%28.56%
40Δ call29.48%29.81%29.18%
45Δ call29.46%29.84%29.29%
ATM29.42%29.96%28.85%
45Δ put29.35%30.10%28.76%
40Δ put29.25%30.27%28.81%
35Δ put29.20%30.49%29.63%
30Δ put29.29%30.81%29.33%
25Δ put29.53%31.31%30.38%
20Δ put30.31%32.11%30.02%
15Δ put——31.11%
10Δ put——31.85%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-09-253$275.1029.42%29.53%29.09%+0.44-0.117
2026-10-0917$275.4029.96%31.31%29.89%+1.42+0.649
2026-10-1624$275.4528.85%30.38%28.73%+1.65+0.7116
2026-10-2331$275.7528.70%29.74%28.34%+1.40+0.348
2026-10-3038$276.1029.47%30.96%29.02%+1.95+0.5211
2026-11-2059$276.9832.38%33.30%31.15%+2.16-0.159
2026-12-1887$276.6730.69%32.98%29.67%+3.31+0.6412
2027-01-15115$277.4730.60%31.88%29.34%+2.55+0.0113
2027-03-19178$278.4731.32%32.74%30.14%+2.60+0.1216
2027-06-17268$280.6731.11%31.92%31.28%+0.64+0.4916
2027-09-17360$282.6131.46%32.92%29.84%+3.08-0.0814

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

28%29%30%31%32%33%2026-09-25 — 3 days — at-the-money IV 29.42%2026-10-09 — 17 days — at-the-money IV 29.96%2026-10-16 — 24 days — at-the-money IV 28.85%2026-10-23 — 31 days — at-the-money IV 28.70%2026-10-30 — 38 days — at-the-money IV 29.47%2026-11-20 — 59 days — at-the-money IV 32.38%2026-12-18 — 87 days — at-the-money IV 30.69%2027-01-15 — 115 days — at-the-money IV 30.60%2027-03-19 — 178 days — at-the-money IV 31.32%2027-06-17 — 268 days — at-the-money IV 31.11%2027-09-17 — 360 days — at-the-money IV 31.46%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$275.1029.42%$275.207
2026-10-0917 days$275.4029.96%$275.989
2026-10-1624 days$275.4528.85%$276.2116
2026-10-2331 days$275.7528.70%$276.728
2026-10-3038 days$276.1029.47%$277.3611
2026-11-2059 days$276.9832.38%$279.349
2026-12-1887 days$276.6730.69%$279.7912
2027-01-15115 days$277.4730.60%$281.5913
2027-03-19178 days$278.4731.32%$285.2116
2027-06-17268 days$280.6731.11%$290.8316
2027-09-17360 days$282.6131.46%$296.7514

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
28.72%
60 days
32.29%
90 days
30.67%
180 days
31.32%

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

0.600.801.001.201.4029 Aug14 Nov4 Feb28 Apr22 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

2026-10-29Time not statedEstimated from its reporting cadence

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
7.3%
Mean move that happened
2.5%
absolute

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2026-07-30Before the open———
2026-04-30Before the open———
2026-02-05Before the open———
2025-10-30Before the open———
2025-07-31Before the open———
2025-05-02Before the open7.2%-0.1%0.02×
2025-01-30Before the open6.7%-6.7%1.00×
2024-10-31Before the open8.0%+0.6%0.08×
2024-08-01Before the open———
2024-05-02Before the open———
2024-02-02Before the open———
2023-11-02Before 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.