Options Skew Analytics

MPC options analytics

MPC · Stock

Data as of 23 September 2026 (end of day)

MPC options are pricing a 30-day at-the-money volatility of 50.7%, a move of about ±14.5% over the next month. That is higher than 96% of the 221 sessions in its trailing year.

Its 25-delta puts carry 0.91 volatility points more than the calls, around the middle of its own range for the past year.

Its next earnings report is 2026-11-03, before the open.

Across its last 3 reports the options market priced an average move of ±6.0% and MPC moved 3.6% on average, staying inside the priced band 2 times out of 3.

Current readings

30-day ATM implied volatilityⓘ
50.70%

Prices a move of about ±14.5% over 30 days, or ±3.2% on a typical day.

Higher than 96% of the past year.

25-delta risk reversalⓘ
+0.91

Puts carry 0.91 volatility points more than calls the same distance from the money.

Higher than 16% of the past year.

25-delta butterflyⓘ
+0.16

The wings carry 0.16 volatility points more than at-the-money.

Term structure slopeⓘ
0.997

90-day and 30-day options carry about the same volatility.

Higher than 39% of the past year.

Where 30-day implied volatility sits

Against 221 prior sessions (one-year window)

50.7% — 96th percentile
26.5%67.9%
IV percentile, 1 year
96%
IV rank, 1 year
58%
IV percentile, 2 years
96%
IV rank, 2 years
58%

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
$388.38
30-day implied forward
$391.06
60-day ATM IV
51.69%
90-day ATM IV
50.55%
180-day ATM IV
50.38%
Expirations used
7
Total open interest
66,949
Put / call open interest
0.81

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 226 sessions

20%40%60%80%3 Sep22 Nov19 Feb8 May23 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2350.70%+0.910.997$388.38
2026-09-2250.01%+1.231.044$389.68
2026-09-2153.92%+1.090.991$402.38
2026-09-1850.27%+0.641.041$424.89
2026-09-1751.57%+0.591.033$421.96
2026-09-1652.74%+1.030.999$413.92
2026-09-15———$410.84
2026-09-1450.21%+0.220.998$396.45
2026-09-1147.08%-2.201.051$395.93
2026-09-1046.62%-2.401.044$392.42
2026-09-0947.67%-0.851.042$399.44
2026-09-0846.65%-0.211.040$397.77
2026-09-0444.91%-1.071.051$388.90
2026-09-0344.63%-0.041.061$387.71
2026-09-0244.59%-0.791.045$387.00
2026-09-0146.37%+0.881.009$383.00
2026-08-3144.25%-0.601.029$373.32
2026-08-2842.30%+0.621.050$368.83
2026-08-2742.25%-0.291.051$363.54
2026-08-2642.64%-0.251.032$362.27
2026-08-2541.43%-0.171.065$354.88
2026-08-2441.52%+0.741.065$362.52
2025-06-3028.30%+3.361.059$166.11
2025-06-27———$167.41
2025-06-2627.80%+2.801.083$167.52
2025-06-2528.87%+2.861.065$165.69
2025-06-2429.08%+1.731.060$165.29
2025-06-2329.94%+4.371.052$166.61
2025-06-2030.67%+3.061.038$169.12
2025-06-1831.74%+2.361.034$167.42
2025-06-1732.06%+2.951.023$170.08
2025-06-1629.14%+2.831.081$166.78
2025-06-1330.79%+3.061.060$166.15
2025-06-1231.43%+2.191.010$165.07
2025-06-1130.44%+3.531.046$164.66
2025-06-1029.77%+3.631.056$162.64
2025-06-0929.78%+3.271.071$160.27
2025-06-0629.50%+3.731.081$160.12
2025-06-0531.28%+4.581.069$158.21
2025-06-0431.83%+3.471.034$156.95
2025-06-0329.51%+3.791.074$161.97
2025-06-0230.49%+4.661.058$158.75
2025-05-3029.40%+5.281.085$160.74
2025-05-2930.39%+4.121.056$159.92
2025-05-2830.90%+4.841.051$158.61
2025-05-2730.60%+4.211.044$162.33
2025-05-2331.80%+5.621.037$159.11
2025-05-2231.46%+4.821.042$158.89
2025-05-2131.62%+4.671.027$156.70
2025-05-2029.43%+4.951.049$161.53
2025-05-1929.37%+5.131.054$162.27
2025-05-1628.13%+4.331.065$164.12
2025-05-1529.45%+3.781.018$165.29
2025-05-1429.10%+4.191.037$163.52
2025-05-1329.03%+5.571.017$162.84
2025-05-1229.47%+4.451.023$158.14
2025-05-0931.71%+5.361.017$150.89
2025-05-0832.46%+4.941.015$149.97
2025-05-0733.78%+5.470.993$144.69
2025-05-0638.40%+3.040.880$144.55
2025-05-0537.00%+7.270.975$143.33
2025-05-0238.71%+7.370.929$141.55
2025-05-0141.28%+6.320.908$137.72
2025-04-3036.91%+3.700.934$137.41
2025-04-2938.38%+7.090.936$138.31
2025-04-2837.90%+8.110.966$137.58
2025-04-2539.48%+7.720.916$137.44
2025-04-2441.41%+7.170.896$137.54
2025-04-2342.54%+5.190.889$134.30
2025-04-2243.71%+9.900.907$131.39
2025-04-2147.71%+9.650.875$126.72
2025-04-1741.58%+14.330.909$127.72
2025-04-1648.73%+10.710.826$124.07
2025-04-1546.69%+10.760.881$122.23
2025-04-1449.18%+11.600.872$124.85
2025-04-1157.03%+13.840.808$123.43
2025-04-1058.10%+13.080.811$121.53
2025-04-0948.00%+7.320.860$131.42
2025-04-0867.92%+15.260.812$118.55
2025-04-0758.55%+12.860.853$121.66
2025-04-0459.69%+12.690.848$121.07
2025-04-0341.82%+6.260.957$128.59
2025-04-0232.02%+3.501.019$147.90
2025-04-0132.44%+3.061.014$146.63
2025-03-3133.18%+1.610.992$145.69
2025-03-2832.35%+4.111.025$144.10
2025-03-2729.23%+4.861.092$147.35
2025-03-2631.54%+4.121.015$149.81
2025-03-2529.06%+4.451.096$149.09
2025-03-2428.49%+3.991.095$148.68
2025-03-2131.99%+4.681.033$149.96
2025-03-2031.86%+2.901.024$151.95
2025-03-1932.43%+4.781.006$149.57
2025-03-1834.39%+4.740.975$146.00
2025-03-1733.57%+3.781.028$146.16
2025-03-1435.59%+3.381.001$141.15
2025-03-1337.50%+4.750.967$137.02
2025-03-1237.76%+5.800.897$137.12
2025-03-1140.56%+4.700.927$134.72
2025-03-1040.67%+6.620.917$136.26
2025-03-0737.13%+1.250.959$137.55
2025-03-0640.22%+0.160.920$137.56
2025-03-0539.03%-0.510.926$135.12
2025-03-0436.49%+3.480.929$142.62
2025-03-0334.07%+3.820.987$145.82
2025-02-2833.98%+3.920.933$150.18
2025-02-2731.53%+2.931.030$147.98
2025-02-2633.24%+1.220.974$146.30
2025-02-2532.93%+0.040.987$150.59
2025-02-2431.69%+1.400.999$152.70
2025-02-2130.17%+4.331.036$153.74
2025-02-2029.98%+1.831.006$158.27
2025-02-1931.50%+1.830.967$156.64
2025-02-1830.10%+2.431.026$159.03
2025-02-1429.36%+1.661.024$156.06
2025-02-1331.23%+1.260.983$154.09
2025-02-1231.07%+2.100.981$149.21
2025-02-1131.08%+1.970.979$155.30
2025-02-1030.47%+4.240.977$153.78
2025-02-0730.44%+2.821.024$150.12

The chart covers every session in the archive, 226 in total. The table lists the most recent 120.

25-delta risk reversal

Last 226 sessions

-5.00.05.010.015.020.03 Sep22 Nov19 Feb8 May23 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

23d (2026-10-16) · 58d (2026-11-20) · 86d (2026-12-18)

48%50%52%54%56%2026-10-16 (23d) — 5Δ C — IV 48.87%2026-10-16 (23d) — 10Δ C — IV 48.82%2026-10-16 (23d) — 15Δ C — IV 51.08%2026-10-16 (23d) — 20Δ C — IV 49.17%2026-10-16 (23d) — 25Δ C — IV 49.29%2026-10-16 (23d) — 30Δ C — IV 49.53%2026-10-16 (23d) — 35Δ C — IV 49.66%2026-10-16 (23d) — 40Δ C — IV 49.76%2026-10-16 (23d) — 45Δ C — IV 49.86%2026-10-16 (23d) — ATM — IV 49.98%2026-10-16 (23d) — 45Δ P — IV 50.16%2026-10-16 (23d) — 40Δ P — IV 50.44%2026-10-16 (23d) — 35Δ P — IV 50.57%2026-10-16 (23d) — 30Δ P — IV 50.60%2026-10-16 (23d) — 25Δ P — IV 50.35%2026-10-16 (23d) — 20Δ P — IV 50.60%2026-10-16 (23d) — 15Δ P — IV 51.59%23d2026-11-20 (58d) — 15Δ C — IV 52.25%2026-11-20 (58d) — 20Δ C — IV 51.47%2026-11-20 (58d) — 25Δ C — IV 52.12%2026-11-20 (58d) — 30Δ C — IV 51.62%2026-11-20 (58d) — 35Δ C — IV 51.28%2026-11-20 (58d) — 40Δ C — IV 51.98%2026-11-20 (58d) — 45Δ C — IV 52.26%2026-11-20 (58d) — ATM — IV 51.82%2026-11-20 (58d) — 45Δ P — IV 52.40%2026-11-20 (58d) — 40Δ P — IV 52.51%2026-11-20 (58d) — 35Δ P — IV 52.54%2026-11-20 (58d) — 30Δ P — IV 52.75%2026-11-20 (58d) — 25Δ P — IV 52.82%2026-11-20 (58d) — 20Δ P — IV 53.04%2026-11-20 (58d) — 15Δ P — IV 53.44%2026-11-20 (58d) — 10Δ P — IV 54.85%58d2026-12-18 (86d) — 10Δ C — IV 50.68%2026-12-18 (86d) — 15Δ C — IV 50.54%2026-12-18 (86d) — 20Δ C — IV 51.07%2026-12-18 (86d) — 25Δ C — IV 50.80%2026-12-18 (86d) — 30Δ C — IV 50.38%2026-12-18 (86d) — 35Δ C — IV 50.46%2026-12-18 (86d) — 40Δ C — IV 50.51%2026-12-18 (86d) — 45Δ C — IV 50.62%2026-12-18 (86d) — ATM — IV 50.53%2026-12-18 (86d) — 45Δ P — IV 50.62%2026-12-18 (86d) — 40Δ P — IV 50.82%2026-12-18 (86d) — 35Δ P — IV 50.73%2026-12-18 (86d) — 30Δ P — IV 50.51%2026-12-18 (86d) — 25Δ P — IV 50.81%2026-12-18 (86d) — 20Δ P — IV 51.50%2026-12-18 (86d) — 15Δ P — IV 52.66%86d10Δ 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
Delta23d58d86d
5Δ call48.87%——
10Δ call48.82%—50.68%
15Δ call51.08%52.25%50.54%
20Δ call49.17%51.47%51.07%
25Δ call49.29%52.12%50.80%
30Δ call49.53%51.62%50.38%
35Δ call49.66%51.28%50.46%
40Δ call49.76%51.98%50.51%
45Δ call49.86%52.26%50.62%
ATM49.98%51.82%50.53%
45Δ put50.16%52.40%50.62%
40Δ put50.44%52.51%50.82%
35Δ put50.57%52.54%50.73%
30Δ put50.60%52.75%50.51%
25Δ put50.35%52.82%50.81%
20Δ put50.60%53.04%51.50%
15Δ put51.59%53.44%52.66%
10Δ put—54.85%—

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-10-1623$390.9549.98%50.35%49.29%+1.06-0.1614
2026-11-2058$391.5151.82%52.82%52.12%+0.70+0.6521
2026-12-1886$392.3250.53%50.81%50.80%+0.02+0.2825
2027-01-15114$392.9450.64%50.40%51.02%-0.63+0.0731
2027-03-19177$395.7650.46%50.17%50.73%-0.56-0.0132
2027-04-16205$396.2649.76%49.99%50.00%-0.01+0.2428
2027-06-17267$398.7649.36%49.49%50.63%-1.14+0.6933

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

49%50%51%52%53%2026-10-16 — 23 days — at-the-money IV 49.98%2026-11-20 — 58 days — at-the-money IV 51.82%2026-12-18 — 86 days — at-the-money IV 50.53%2027-01-15 — 114 days — at-the-money IV 50.64%2027-03-19 — 177 days — at-the-money IV 50.46%2027-04-16 — 205 days — at-the-money IV 49.76%2027-06-17 — 267 days — at-the-money IV 49.36%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
2026-10-1623 days$390.9549.98%$394.0414
2026-11-2058 days$391.5151.82%$399.9521
2026-12-1886 days$392.3250.53%$404.3025
2027-01-15114 days$392.9450.64%$408.9931
2027-03-19177 days$395.7650.46%$420.9732
2027-04-16205 days$396.2649.76%$424.7928
2027-06-17267 days$398.7649.36%$435.9333

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
50.70%
60 days
51.69%
90 days
50.55%
180 days
50.38%

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 226 sessions

0.700.800.901.001.101.203 Sep22 Nov19 Feb8 May23 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

2026-11-03Before the openAnnounced

How the pricing has held up

Over the last 3 reports

Landed inside the implied band
2 of 3
67% — about 68% is what an exactly-priced event gives
Mean implied move
6.0%
Mean move that happened
3.6%
absolute

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2026-08-04Before the open———
2026-05-05Before the open———
2026-04-13After the close———
2026-02-03Before the open———
2025-11-04Before the open———
2025-08-05Before the open———
2025-05-06Before the open5.9%+0.9%0.14×
2025-02-04Before the open5.6%+6.7%1.21×
2024-11-05Before the open6.5%+3.2%0.49×
2024-08-06Before the open———
2024-04-30Before the open———
2024-01-30Before the open———
2023-10-31Before 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.