Options Skew Analytics

GLD options analytics

GLD · ETF

Data as of 22 September 2026 (end of day)

GLD options are pricing a 30-day at-the-money volatility of 21.1%, a move of about ±6.1% over the next month. That is higher than 83% of the 222 sessions in its trailing year.

Its 25-delta calls carry 1.17 volatility points more than the puts, around the middle of its own range for the past year.

Longer-dated options carry more: 90-day volatility is 9% above 30-day.

Current readings

30-day ATM implied volatilityⓘ
21.13%

Prices a move of about ±6.1% over 30 days, or ±1.3% on a typical day.

Higher than 83% of the past year.

25-delta risk reversalⓘ
-1.17

Calls carry 1.17 volatility points more than puts the same distance from the money.

Higher than 15% of the past year.

25-delta butterflyⓘ
+0.45

The wings carry 0.45 volatility points more than at-the-money.

Term structure slopeⓘ
1.086

90-day volatility is 9% above 30-day.

Higher than 97% of the past year.

Where 30-day implied volatility sits

Against 222 prior sessions (one-year window)

21.1% — 83th percentile
13.0%26.7%
IV percentile, 1 year
83%
IV rank, 1 year
59%
IV percentile, 2 years
83%
IV rank, 2 years
59%

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
$400.07
30-day implied forward
$401.98
60-day ATM IV
22.80%
90-day ATM IV
22.95%
180-day ATM IV
23.37%
Expirations used
24
Total open interest
4,709,430
Put / call open interest
0.54

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

10%15%20%25%30%3 Sep22 Nov20 Feb12 May22 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2221.13%-1.171.086$400.07
2026-09-2120.83%-0.821.092$398.38
2026-09-1821.14%-0.561.107$401.17
2026-09-1722.76%-0.671.064$398.36
2026-09-1624.14%-0.041.029$391.74
2026-09-1524.64%-0.981.014$394.15
2026-09-1424.34%-0.721.013$392.84
2026-09-1123.34%-0.891.038$398.77
2026-09-1025.90%-1.150.979$396.36
2026-09-0925.52%-1.800.986$403.35
2026-09-0824.86%-1.350.994$399.72
2026-09-0424.13%-1.711.020$406.77
2026-09-0324.65%-1.591.008$410.22
2026-09-0224.09%-0.931.002$402.78
2026-09-0122.88%-0.361.039$396.75
2026-08-3121.65%-1.401.086$408.42
2026-08-2822.78%-0.871.085$408.89
2026-08-2724.46%-0.841.053$422.60
2026-08-2624.93%-1.411.043$421.32
2026-08-2525.76%-1.791.024$428.07
2026-08-2426.71%-2.140.999$426.69
2026-08-2125.65%-1.891.014$423.36
2025-06-3016.27%-0.650.985$304.83
2025-06-2715.32%-0.851.012$301.22
2025-06-2615.61%-0.701.014$306.78
2025-06-2516.04%-0.911.013$307.12
2025-06-2417.00%-1.070.988$306.19
2025-06-2317.62%-1.351.013$311.08
2025-06-2017.80%-1.800.995$310.13
2025-06-1818.41%-1.940.980$310.26
2025-06-1719.30%-2.100.965$311.94
2025-06-1618.73%-1.800.986$311.78
2025-06-1319.93%-2.140.959$316.29
2025-06-1218.62%-1.410.993$312.20
2025-06-1118.34%-1.250.999$308.37
2025-06-1017.89%-0.490.998$306.71
2025-06-0918.36%-0.690.988$306.62
2025-06-0618.02%-0.751.002$305.18
2025-06-0518.61%-0.670.996$309.33
2025-06-0418.77%-0.900.994$310.90
2025-06-0319.00%-0.690.981$308.91
2025-06-0219.33%-0.670.978$311.67
2025-05-3017.62%-0.631.012$303.60
2025-05-2918.22%-0.280.997$305.61
2025-05-2818.45%-0.120.983$303.81
2025-05-2719.84%-0.410.955$304.50
2025-05-2320.82%-0.520.947$309.75
2025-05-2220.10%-0.670.961$303.11
2025-05-2120.96%-1.030.952$305.82
2025-05-2020.72%-0.870.942$303.58
2025-05-1919.97%-0.810.949$298.03
2025-05-1620.08%-0.740.933$294.24
2025-05-1520.19%-1.040.942$297.84
2025-05-1419.39%-0.350.945$293.16
2025-05-1318.44%-0.550.980$299.46
2025-05-1219.93%-0.840.952$298.19
2025-05-0920.74%-0.620.949$306.84
2025-05-0821.25%-0.450.935$304.63
2025-05-0721.66%-1.060.938$310.75
2025-05-0623.54%-1.740.911$315.48
2025-05-0521.85%-1.340.930$306.88
2025-05-0219.71%-0.710.962$297.98
2025-05-0119.86%-1.000.953$297.46
2025-04-3019.75%-1.020.957$303.77
2025-04-2920.49%-1.200.942$306.06
2025-04-2821.67%-1.140.911$309.07
2025-04-2521.97%-0.630.883$304.73
2025-04-2423.17%-1.220.891$308.07
2025-04-2323.17%-1.620.909$303.65
2025-04-2226.58%-1.110.872$311.11
2025-04-2126.25%-1.980.875$315.59
2025-04-1722.60%-1.650.930$306.12
2025-04-1625.16%-2.550.875$307.47
2025-04-1519.67%-0.850.966$297.78
2025-04-1421.38%-1.250.930$296.23
2025-04-1125.86%-3.090.854$297.93
2025-04-1022.79%-1.340.929$292.35
2025-04-0922.50%+1.110.843$285.38
2025-04-0820.82%+2.190.876$275.20
2025-04-0718.48%+0.820.991$273.71
2025-04-0419.79%+0.280.904$279.72
2025-04-0316.73%-0.410.979$286.42
2025-04-0215.90%+0.230.966$288.16
2025-04-0116.20%-0.250.958$287.57
2025-03-3115.78%+0.671.007$288.14
2025-03-2814.65%+0.561.032$284.06
2025-03-2714.31%+0.501.049$281.97
2025-03-2613.72%+0.431.068$278.24
2025-03-2513.91%+0.531.058$278.47
2025-03-2413.90%+0.371.091$277.25
2025-03-2114.62%+0.361.034$278.49
2025-03-2015.04%+0.491.033$280.75
2025-03-1915.55%+0.141.022$281.11
2025-03-1816.48%+0.460.985$279.96
2025-03-1716.61%+0.080.978$276.73
2025-03-1416.19%-0.000.990$275.24
2025-03-1316.54%-0.110.987$275.13
2025-03-1216.68%-0.100.945$270.33
2025-03-1116.16%+0.400.973$269.16
2025-03-1016.07%+0.750.966$266.04
2025-03-0715.16%+0.621.018$268.39
2025-03-0615.24%+1.101.024$268.25
2025-03-0516.63%-0.310.952$269.62
2025-03-0416.00%+0.280.980$269.06
2025-03-0316.09%+0.300.967$266.74
2025-02-2815.32%+0.530.979$263.27
2025-02-2715.28%-0.230.990$264.93
2025-02-2615.29%+0.331.004$269.03
2025-02-2516.10%-0.090.968$268.62
2025-02-2415.58%+0.140.989$272.21
2025-02-2115.60%+1.320.940$270.74
2025-02-2015.04%+1.181.026$270.99
2025-02-1916.07%+0.050.989$270.85
2025-02-1816.88%+0.350.955$270.70
2025-02-1416.71%+0.980.931$266.29
2025-02-1315.45%-0.141.008$270.31
2025-02-1216.87%+0.250.936$267.67
2025-02-1115.88%-0.551.003$267.39
2025-02-1019.44%+0.700.821$268.37
2025-02-0715.76%-0.231.000$263.90

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

-4.0-2.00.02.04.03 Sep22 Nov20 Feb12 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

1d (2026-09-23) · 2d (2026-09-24) · 3d (2026-09-25)

20%25%30%35%2026-09-23 (1d) — 5Δ C — IV 31.31%2026-09-23 (1d) — 10Δ C — IV 27.07%2026-09-23 (1d) — 15Δ C — IV 25.40%2026-09-23 (1d) — 20Δ C — IV 24.47%2026-09-23 (1d) — 25Δ C — IV 23.81%2026-09-23 (1d) — 30Δ C — IV 23.26%2026-09-23 (1d) — 35Δ C — IV 22.91%2026-09-23 (1d) — 40Δ C — IV 22.63%2026-09-23 (1d) — 45Δ C — IV 22.34%2026-09-23 (1d) — ATM — IV 22.11%2026-09-23 (1d) — 45Δ P — IV 21.93%2026-09-23 (1d) — 40Δ P — IV 21.81%2026-09-23 (1d) — 35Δ P — IV 21.75%2026-09-23 (1d) — 30Δ P — IV 22.10%2026-09-23 (1d) — 25Δ P — IV 22.17%2026-09-23 (1d) — 20Δ P — IV 22.17%2026-09-23 (1d) — 15Δ P — IV 22.19%2026-09-23 (1d) — 10Δ P — IV 22.67%2026-09-23 (1d) — 5Δ P — IV 25.51%1d2026-09-24 (2d) — 5Δ C — IV 29.23%2026-09-24 (2d) — 10Δ C — IV 25.86%2026-09-24 (2d) — 15Δ C — IV 24.87%2026-09-24 (2d) — 20Δ C — IV 23.89%2026-09-24 (2d) — 25Δ C — IV 23.35%2026-09-24 (2d) — 30Δ C — IV 22.99%2026-09-24 (2d) — 35Δ C — IV 22.76%2026-09-24 (2d) — 40Δ C — IV 22.67%2026-09-24 (2d) — 45Δ C — IV 22.59%2026-09-24 (2d) — ATM — IV 22.41%2026-09-24 (2d) — 45Δ P — IV 22.23%2026-09-24 (2d) — 40Δ P — IV 22.23%2026-09-24 (2d) — 35Δ P — IV 21.98%2026-09-24 (2d) — 30Δ P — IV 22.00%2026-09-24 (2d) — 25Δ P — IV 22.18%2026-09-24 (2d) — 20Δ P — IV 22.36%2026-09-24 (2d) — 15Δ P — IV 22.57%2026-09-24 (2d) — 10Δ P — IV 23.21%2026-09-24 (2d) — 5Δ P — IV 25.43%2d2026-09-25 (3d) — 5Δ C — IV 27.41%2026-09-25 (3d) — 10Δ C — IV 25.46%2026-09-25 (3d) — 15Δ C — IV 24.35%2026-09-25 (3d) — 20Δ C — IV 23.41%2026-09-25 (3d) — 25Δ C — IV 22.91%2026-09-25 (3d) — 30Δ C — IV 22.66%2026-09-25 (3d) — 35Δ C — IV 22.44%2026-09-25 (3d) — 40Δ C — IV 22.13%2026-09-25 (3d) — 45Δ C — IV 22.02%2026-09-25 (3d) — ATM — IV 21.98%2026-09-25 (3d) — 45Δ P — IV 21.85%2026-09-25 (3d) — 40Δ P — IV 21.89%2026-09-25 (3d) — 35Δ P — IV 21.92%2026-09-25 (3d) — 30Δ P — IV 21.81%2026-09-25 (3d) — 25Δ P — IV 21.93%2026-09-25 (3d) — 20Δ P — IV 22.03%2026-09-25 (3d) — 15Δ P — IV 22.30%2026-09-25 (3d) — 10Δ P — IV 22.70%2026-09-25 (3d) — 5Δ P — IV 24.79%3d10Δ 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
Delta1d2d3d
5Δ call31.31%29.23%27.41%
10Δ call27.07%25.86%25.46%
15Δ call25.40%24.87%24.35%
20Δ call24.47%23.89%23.41%
25Δ call23.81%23.35%22.91%
30Δ call23.26%22.99%22.66%
35Δ call22.91%22.76%22.44%
40Δ call22.63%22.67%22.13%
45Δ call22.34%22.59%22.02%
ATM22.11%22.41%21.98%
45Δ put21.93%22.23%21.85%
40Δ put21.81%22.23%21.89%
35Δ put21.75%21.98%21.92%
30Δ put22.10%22.00%21.81%
25Δ put22.17%22.18%21.93%
20Δ put22.17%22.36%22.03%
15Δ put22.19%22.57%22.30%
10Δ put22.67%23.21%22.70%
5Δ put25.51%25.43%24.79%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-09-231$400.6622.11%22.17%23.81%-1.64+0.8854
2026-09-242$400.7022.41%22.18%23.35%-1.17+0.3665
2026-09-253$400.8721.98%21.93%22.91%-0.98+0.4486
2026-09-286$400.8718.48%18.28%19.40%-1.13+0.3671
2026-09-297$400.8519.09%18.75%20.11%-1.37+0.3473
2026-09-308$400.9719.61%19.48%20.50%-1.01+0.38133
2026-10-019$401.0319.98%19.90%20.96%-1.06+0.4557
2026-10-0210$401.1520.99%20.87%22.02%-1.14+0.45122
2026-10-0513$401.1819.78%19.58%20.82%-1.24+0.4164
2026-10-0614$401.2019.78%19.70%20.94%-1.23+0.5430
2026-10-0917$401.4820.74%20.54%21.73%-1.20+0.40125
2026-10-1624$401.7021.14%20.93%22.11%-1.18+0.37148
2026-10-2331$402.0321.13%21.00%22.17%-1.17+0.46108
2026-10-3038$402.3521.94%21.74%22.91%-1.17+0.38112
2026-11-2059$403.2622.79%22.43%23.70%-1.27+0.27107
2026-12-1887$404.5722.96%22.54%24.00%-1.46+0.31110
2026-12-31100$405.1522.92%22.46%24.02%-1.56+0.32143
2027-01-15115$405.8123.02%22.48%24.05%-1.57+0.25227
2027-02-19150$407.3923.14%22.71%24.21%-1.50+0.3283
2027-03-19178$408.6023.38%22.89%24.40%-1.51+0.27121
2027-03-31190$409.0523.35%22.87%24.47%-1.60+0.32129
2027-06-17268$412.7023.92%23.37%25.06%-1.70+0.30118
2027-06-30281$413.2723.93%23.38%25.10%-1.72+0.30104
2027-09-17360$416.9324.08%24.03%25.40%-1.37+0.6374

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

24 listed expirations produced a usable reading

18%20%22%24%26%2026-09-23 — 1 days — at-the-money IV 22.11%2026-09-24 — 2 days — at-the-money IV 22.41%2026-09-25 — 3 days — at-the-money IV 21.98%2026-09-28 — 6 days — at-the-money IV 18.48%2026-09-29 — 7 days — at-the-money IV 19.09%2026-09-30 — 8 days — at-the-money IV 19.61%2026-10-01 — 9 days — at-the-money IV 19.98%2026-10-02 — 10 days — at-the-money IV 20.99%2026-10-05 — 13 days — at-the-money IV 19.78%2026-10-06 — 14 days — at-the-money IV 19.78%2026-10-09 — 17 days — at-the-money IV 20.74%2026-10-16 — 24 days — at-the-money IV 21.14%2026-10-23 — 31 days — at-the-money IV 21.13%2026-10-30 — 38 days — at-the-money IV 21.94%2026-11-20 — 59 days — at-the-money IV 22.79%2026-12-18 — 87 days — at-the-money IV 22.96%2026-12-31 — 100 days — at-the-money IV 22.92%2027-01-15 — 115 days — at-the-money IV 23.02%2027-02-19 — 150 days — at-the-money IV 23.14%2027-03-19 — 178 days — at-the-money IV 23.38%2027-03-31 — 190 days — at-the-money IV 23.35%2027-06-17 — 268 days — at-the-money IV 23.92%2027-06-30 — 281 days — at-the-money IV 23.93%2027-09-17 — 360 days — at-the-money IV 24.08%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
2026-09-231 day$400.6622.11%$400.6954
2026-09-242 days$400.7022.41%$400.7665
2026-09-253 days$400.8721.98%$400.9586
2026-09-286 days$400.8718.48%$400.9971
2026-09-297 days$400.8519.09%$400.9973
2026-09-308 days$400.9719.61%$401.14133
2026-10-019 days$401.0319.98%$401.2257
2026-10-0210 days$401.1520.99%$401.39122
2026-10-0513 days$401.1819.78%$401.4564
2026-10-0614 days$401.2019.78%$401.5030
2026-10-0917 days$401.4820.74%$401.88125
2026-10-1624 days$401.7021.14%$402.29148
2026-10-2331 days$402.0321.13%$402.79108
2026-10-3038 days$402.3521.94%$403.36112
2026-11-2059 days$403.2622.79%$404.96107
2026-12-1887 days$404.5722.96%$407.12110
2026-12-31100 days$405.1522.92%$408.08143
2027-01-15115 days$405.8123.02%$409.21227
2027-02-19150 days$407.3923.14%$411.9083
2027-03-19178 days$408.6023.38%$414.08121
2027-03-31190 days$409.0523.35%$414.90129
2027-06-17268 days$412.7023.92%$421.46118
2027-06-30281 days$413.2723.93%$422.48104
2027-09-17360 days$416.9324.08%$429.0374

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
21.13%
60 days
22.80%
90 days
22.95%
180 days
23.37%

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 Nov20 Feb12 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.