Options Skew Analytics

FCX options analytics

FCX · Stock

Data as of 22 September 2026 (end of day)

FCX options are pricing a 30-day at-the-money volatility of 47.9%, a move of about ±13.7% over the next month. That is higher than 89% of the 224 sessions in its trailing year.

Its 25-delta puts carry 0.11 volatility points more than the calls, around the middle of its own range for the past year.

Its next earnings report is 2026-10-22 (estimated from its reporting cadence).

Across its last 4 reports the options market priced an average move of ±6.6% and FCX moved 28.0% on average, staying inside the priced band 2 times out of 4.

Current readings

30-day ATM implied volatilityⓘ
47.86%

Prices a move of about ±13.7% over 30 days, or ±3.0% on a typical day.

Higher than 89% of the past year.

25-delta risk reversalⓘ
+0.11

Puts carry 0.11 volatility points more than calls the same distance from the money.

Higher than 22% of the past year.

25-delta butterflyⓘ
+0.89

The wings carry 0.89 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 54% of the past year.

Where 30-day implied volatility sits

Against 224 prior sessions (one-year window)

47.9% — 89th percentile
32.2%80.2%
IV percentile, 1 year
89%
IV rank, 1 year
33%
IV percentile, 2 years
89%
IV rank, 2 years
33%

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
$74.35
30-day implied forward
$74.63
60-day ATM IV
48.51%
90-day ATM IV
47.73%
180-day ATM IV
48.55%
Expirations used
12
Total open interest
672,073
Put / call open interest
0.72

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%100%3 Sep22 Nov18 Feb9 May22 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2247.86%+0.110.997$74.35
2026-09-2146.80%-0.291.014$72.16
2026-09-1846.37%+0.841.030$71.54
2026-09-1745.15%+0.491.059$70.85
2026-09-1646.57%+0.771.037$69.24
2026-09-1546.25%+0.641.036$69.38
2026-09-1446.82%-0.501.032$69.34
2026-09-1144.58%+0.911.108$71.07
2026-09-1048.08%+1.581.046$71.21
2026-09-0947.48%-3.201.073$76.23
2026-09-0851.21%-2.240.966$76.62
2026-09-0443.03%-2.891.117$72.73
2026-09-0348.51%-1.010.999$72.56
2026-09-0247.88%+2.001.001$73.93
2026-09-0148.14%-3.331.021$72.47
2026-08-3147.39%-2.101.023$75.74
2026-08-2846.70%+0.931.077$76.45
2026-08-2751.89%-2.920.971$78.42
2026-08-2648.27%-0.901.070$79.00
2026-08-2549.04%+2.091.052$79.91
2026-08-2452.93%-2.601.009$77.80
2026-08-2150.76%-2.631.036$76.66
2025-06-3037.73%+1.950.964$43.35
2025-06-2736.84%+1.400.997$43.87
2025-06-2634.84%+4.681.032$44.46
2025-06-2538.17%+2.790.948$41.61
2025-06-2433.86%+6.581.074$42.01
2025-06-2339.90%+4.010.957$40.94
2025-06-2039.02%+2.660.997$40.22
2025-06-1837.56%+3.801.030$41.18
2025-06-1737.87%+4.111.030$41.37
2025-06-1638.30%+4.381.010$41.91
2025-06-1338.44%+1.901.041$40.94
2025-06-1238.26%+1.491.016$41.18
2025-06-1137.34%+2.841.028$41.01
2025-06-1034.71%+4.791.089$42.19
2025-06-0937.95%+3.151.021$42.34
2025-06-0638.13%+2.601.016$41.48
2025-06-0539.29%+5.161.006$41.69
2025-06-0441.02%+4.620.966$40.86
2025-06-0340.76%+2.040.995$40.24
2025-06-0241.34%+3.881.000$40.15
2025-05-3041.12%+5.381.005$38.48
2025-05-2940.08%+5.451.020$39.03
2025-05-2843.33%+4.200.940$38.89
2025-05-2741.75%+2.370.972$39.64
2025-05-2342.97%+4.850.991$39.02
2025-05-2241.16%+4.161.001$37.70
2025-05-2139.49%+4.311.041$38.01
2025-05-2039.26%+5.301.028$38.40
2025-05-1940.33%+4.920.992$38.80
2025-05-1640.46%+3.620.982$38.02
2025-05-1540.75%+6.400.991$38.47
2025-05-1439.81%+4.050.985$39.06
2025-05-1338.93%+4.650.986$39.47
2025-05-1240.64%+3.790.942$39.11
2025-05-0943.82%+5.310.986$37.86
2025-05-0845.71%+4.120.952$37.48
2025-05-0744.76%+4.320.982$37.02
2025-05-0643.80%+4.920.990$37.92
2025-05-0543.16%+4.861.001$37.35
2025-05-0242.24%+4.861.005$37.60
2025-05-0142.97%+7.121.033$36.41
2025-04-3044.63%+6.630.988$36.03
2025-04-2942.76%+4.941.003$37.17
2025-04-2843.68%+5.160.985$37.24
2025-04-2543.44%+4.360.995$37.35
2025-04-2444.14%+6.060.948$37.63
2025-04-2350.49%+5.070.877$35.19
2025-04-2247.33%+12.860.999$34.06
2025-04-2158.32%+7.590.815$32.95
2025-04-1753.25%+8.950.904$32.90
2025-04-1655.42%+11.400.908$33.32
2025-04-1553.91%+10.200.893$33.37
2025-04-1459.20%+11.140.870$33.75
2025-04-1169.37%+7.870.798$33.35
2025-04-1070.71%+16.700.815$31.35
2025-04-0959.44%+9.940.819$33.74
2025-04-0880.22%+19.210.789$29.21
2025-04-0776.62%+14.840.807$30.37
2025-04-04———$29.15
2025-04-0352.39%+3.560.886$33.51
2025-04-0243.99%+2.580.922$38.20
2025-04-0143.59%+4.670.945$38.13
2025-03-3144.51%+5.560.915$37.86
2025-03-2844.77%+2.310.904$38.42
2025-03-2746.42%-0.450.861$39.98
2025-03-2646.99%+4.660.838$41.49
2025-03-2539.74%+0.680.964$43.01
2025-03-2441.34%-0.630.940$41.61
2025-03-2139.67%+1.760.986$40.25
2025-03-2040.34%+1.700.975$40.70
2025-03-1942.65%+1.730.962$40.42
2025-03-1841.94%+2.100.974$39.84
2025-03-1743.69%+1.680.943$39.51
2025-03-1444.81%+2.730.962$38.85
2025-03-1346.78%+4.330.945$37.58
2025-03-1245.88%+0.600.930$36.78
2025-03-1150.82%+2.350.884$35.88
2025-03-1048.71%+4.090.913$34.50
2025-03-0743.34%+2.790.962$36.94
2025-03-0642.85%+1.400.896$37.68
2025-03-0542.41%+1.480.965$38.16
2025-03-0442.69%+2.450.947$34.90
2025-03-0342.23%+3.610.969$35.53
2025-02-2839.41%+1.260.967$36.91
2025-02-2740.07%+2.920.990$37.42
2025-02-2643.41%+0.590.846$37.95
2025-02-2540.35%-2.320.949$36.76
2025-02-2439.07%+1.480.989$37.11
2025-02-2140.97%+2.370.975$36.98
2025-02-2037.64%-0.770.968$38.96
2025-02-1937.48%+0.090.976$38.57
2025-02-1838.69%+2.190.994$39.30
2025-02-1437.44%+0.011.016$39.47
2025-02-1338.45%-0.200.962$40.22
2025-02-1237.29%+0.101.005$37.96
2025-02-1136.95%+1.851.014$37.59
2025-02-1037.89%-1.271.005$38.46
2025-02-0737.50%-0.021.001$38.22

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

-10.00.010.020.030.03 Sep22 Nov18 Feb9 May22 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)

40%45%50%55%60%2026-09-25 (3d) — 5Δ C — IV 52.75%2026-09-25 (3d) — 10Δ C — IV 52.72%2026-09-25 (3d) — 15Δ C — IV 52.53%2026-09-25 (3d) — 20Δ C — IV 52.38%2026-09-25 (3d) — 25Δ C — IV 52.20%2026-09-25 (3d) — 30Δ C — IV 51.77%2026-09-25 (3d) — 35Δ C — IV 51.24%2026-09-25 (3d) — 40Δ C — IV 51.29%2026-09-25 (3d) — 45Δ C — IV 51.51%2026-09-25 (3d) — ATM — IV 51.79%2026-09-25 (3d) — 45Δ P — IV 52.17%2026-09-25 (3d) — 40Δ P — IV 52.24%2026-09-25 (3d) — 35Δ P — IV 51.36%2026-09-25 (3d) — 30Δ P — IV 50.71%2026-09-25 (3d) — 25Δ P — IV 51.95%2026-09-25 (3d) — 20Δ P — IV 52.94%2026-09-25 (3d) — 15Δ P — IV 53.07%2026-09-25 (3d) — 10Δ P — IV 55.38%2026-09-25 (3d) — 5Δ P — IV 55.67%3d2026-10-02 (10d) — 15Δ C — IV 49.11%2026-10-02 (10d) — 20Δ C — IV 48.85%2026-10-02 (10d) — 25Δ C — IV 48.52%2026-10-02 (10d) — 30Δ C — IV 47.99%2026-10-02 (10d) — 35Δ C — IV 48.73%2026-10-02 (10d) — 40Δ C — IV 48.81%2026-10-02 (10d) — 45Δ C — IV 48.78%2026-10-02 (10d) — ATM — IV 48.80%2026-10-02 (10d) — 45Δ P — IV 48.30%2026-10-02 (10d) — 40Δ P — IV 47.96%2026-10-02 (10d) — 35Δ P — IV 47.30%2026-10-02 (10d) — 30Δ P — IV 46.53%2026-10-02 (10d) — 25Δ P — IV 47.56%2026-10-02 (10d) — 20Δ P — IV 47.45%2026-10-02 (10d) — 15Δ P — IV 48.69%2026-10-02 (10d) — 10Δ P — IV 47.53%2026-10-02 (10d) — 5Δ P — IV 49.65%10d2026-10-09 (17d) — 15Δ C — IV 47.52%2026-10-09 (17d) — 20Δ C — IV 46.36%2026-10-09 (17d) — 25Δ C — IV 46.06%2026-10-09 (17d) — 30Δ C — IV 45.75%2026-10-09 (17d) — 35Δ C — IV 46.21%2026-10-09 (17d) — 40Δ C — IV 46.32%2026-10-09 (17d) — 45Δ C — IV 46.43%2026-10-09 (17d) — ATM — IV 47.43%2026-10-09 (17d) — 45Δ P — IV 46.06%2026-10-09 (17d) — 40Δ P — IV 46.54%2026-10-09 (17d) — 35Δ P — IV 46.36%2026-10-09 (17d) — 30Δ P — IV 45.50%2026-10-09 (17d) — 25Δ P — IV 46.24%2026-10-09 (17d) — 20Δ P — IV 46.91%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 call52.75%——
10Δ call52.72%——
15Δ call52.53%49.11%47.52%
20Δ call52.38%48.85%46.36%
25Δ call52.20%48.52%46.06%
30Δ call51.77%47.99%45.75%
35Δ call51.24%48.73%46.21%
40Δ call51.29%48.81%46.32%
45Δ call51.51%48.78%46.43%
ATM51.79%48.80%47.43%
45Δ put52.17%48.30%46.06%
40Δ put52.24%47.96%46.54%
35Δ put51.36%47.30%46.36%
30Δ put50.71%46.53%45.50%
25Δ put51.95%47.56%46.24%
20Δ put52.94%47.45%46.91%
15Δ put53.07%48.69%—
10Δ put55.38%47.53%—
5Δ put55.67%49.65%—

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-09-253$74.6851.79%51.95%52.20%-0.24+0.2916
2026-10-0210$74.6448.80%47.56%48.52%-0.96-0.7623
2026-10-0917$74.7347.43%46.24%46.06%+0.18-1.2917
2026-10-1624$74.7046.01%47.61%46.33%+1.28+0.9533
2026-10-2331$74.6248.10%48.97%49.00%-0.03+0.8927
2026-10-3038$74.6249.65%48.92%48.79%+0.13-0.7927
2026-11-2059$74.9048.55%48.60%48.98%-0.38+0.2418
2026-12-1887$75.2347.77%48.14%48.51%-0.37+0.5619
2027-01-15115$75.4347.50%47.97%47.80%+0.18+0.3821
2027-02-19150$74.9748.17%46.92%47.81%-0.89-0.8021
2027-03-19178$75.7748.54%48.64%49.05%-0.41+0.3120
2027-06-17268$75.9048.85%48.24%48.89%-0.66-0.2921

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

12 listed expirations produced a usable reading

44%46%48%50%52%54%2026-09-25 — 3 days — at-the-money IV 51.79%2026-10-02 — 10 days — at-the-money IV 48.80%2026-10-09 — 17 days — at-the-money IV 47.43%2026-10-16 — 24 days — at-the-money IV 46.01%2026-10-23 — 31 days — at-the-money IV 48.10%2026-10-30 — 38 days — at-the-money IV 49.65%2026-11-20 — 59 days — at-the-money IV 48.55%2026-12-18 — 87 days — at-the-money IV 47.77%2027-01-15 — 115 days — at-the-money IV 47.50%2027-02-19 — 150 days — at-the-money IV 48.17%2027-03-19 — 178 days — at-the-money IV 48.54%2027-06-17 — 268 days — at-the-money IV 48.85%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$74.6851.79%$74.7716
2026-10-0210 days$74.6448.80%$74.8923
2026-10-0917 days$74.7347.43%$75.1217
2026-10-1624 days$74.7046.01%$75.2233
2026-10-2331 days$74.6248.10%$75.3627
2026-10-3038 days$74.6249.65%$75.5927
2026-11-2059 days$74.9048.55%$76.3418
2026-12-1887 days$75.2347.77%$77.3019
2027-01-15115 days$75.4347.50%$78.1621
2027-02-19150 days$74.9748.17%$78.6421
2027-03-19178 days$75.7748.54%$80.2520
2027-06-17268 days$75.9048.85%$82.8521

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
47.86%
60 days
48.51%
90 days
47.73%
180 days
48.55%

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 Nov18 Feb9 May22 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

2026-10-22Time not statedEstimated from its reporting cadence

How the pricing has held up

Over the last 4 reports

Landed inside the implied band
2 of 4
50% — about 68% is what an exactly-priced event gives
Mean implied move
6.6%
Mean move that happened
28.0%
absolute

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2026-07-23Before the open———
2026-04-23Before the open———
2026-01-22Before the open———
2025-10-23Before the open———
2025-07-23Before the open———
2025-04-24Before the open6.2%+6.9%1.11×
2025-03-31After the close6.3%+102.5%16.21×
2025-01-23Before the open8.4%-1.5%0.18×
2024-10-22Before the open5.5%+1.2%0.22×
2024-07-23Before the open———
2024-07-02Time not stated———
2024-04-23Before the open———
2024-01-24Before the open———
2023-10-19Before 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.