Options Skew Analytics

GDXJ options analytics

GDXJ · ETF

Data as of 9 November 2026 (end of day)

GDXJ options are pricing a 30-day at-the-money volatility of 49.1%, a move of about ±14.1% over the next month. That is higher than 92% of the 229 sessions in its trailing year.

Its 25-delta calls carry 1.80 volatility points more than the puts, closer together than on 90% of the past year.

The term structure is inverted: 90-day volatility is 2% below 30-day, which happens when the market prices something dated into the nearer expirations.

Current readings

30-day ATM implied volatilityⓘ
49.07%

Prices a move of about ±14.1% over 30 days, or ±3.1% on a typical day.

Higher than 92% of the past year.

25-delta risk reversalⓘ
-1.80

Calls carry 1.80 volatility points more than puts the same distance from the money.

Higher than 10% of the past year.

25-delta butterflyⓘ
+1.39

The wings carry 1.39 volatility points more than at-the-money.

Term structure slopeⓘ
0.976

90-day volatility is 2% below 30-day.

Higher than 19% of the past year.

Where 30-day implied volatility sits

Against 229 prior sessions (one-year window)

49.1% — 92th percentile
30.4%53.8%
IV percentile, 1 year
92%
IV rank, 1 year
80%
IV percentile, 2 years
94%
IV rank, 2 years
80%

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
$113.06
30-day implied forward
$112.98
60-day ATM IV
49.02%
90-day ATM IV
47.88%
180-day ATM IV
49.88%
Expirations used
9
Total open interest
150,991
Put / call open interest
0.50

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 322 sessions

20%30%40%50%60%3 Sep14 Jan12 May25 Aug9 Nov
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-11-0949.07%-1.800.976$113.06
2026-11-0645.13%+1.551.049$107.74
2026-11-05———$104.79
2026-11-0449.20%+0.810.953$104.24
2026-11-0350.91%+0.700.916$95.09
2026-11-0247.84%-2.050.987$97.16
2026-10-3048.57%-0.920.986$94.97
2026-10-2943.81%-1.441.027$100.94
2026-10-2849.27%-2.550.936$104.42
2026-10-2741.92%-0.571.117$103.43
2026-10-2646.07%-0.940.975$99.94
2026-10-2346.83%+1.190.960$99.35
2026-10-2246.80%-0.910.969$101.20
2026-10-2144.98%-2.080.985$108.52
2026-10-2044.26%-0.170.974$107.84
2026-10-1945.77%+0.571.001$108.36
2026-10-1644.01%-0.290.990$109.91
2026-10-1544.24%+1.370.975$109.61
2026-10-1442.49%-1.511.061$104.75
2026-10-1342.22%+1.101.015$110.63
2026-10-0944.09%+1.071.009$114.43
2026-10-0844.56%-1.260.964$110.90
2026-10-0745.51%-1.600.981$109.14
2026-10-0645.39%-2.000.994$113.55
2026-10-0546.39%+0.080.967$112.81
2026-10-0245.81%+0.191.034$113.65
2026-10-0144.96%-0.481.060$112.46
2026-09-3045.74%+1.411.028$113.95
2026-09-2945.53%+1.251.020$115.80
2026-09-2846.31%-1.151.027$114.10
2026-09-2545.40%-0.001.081$121.11
2026-09-2445.77%-1.971.061$119.83
2026-09-2349.54%-2.221.006$121.28
2026-09-2248.47%-1.980.985$127.97
2026-09-2146.51%+1.311.047$122.68
2026-09-1846.95%-2.011.042$124.44
2026-09-1747.69%-2.231.038$123.63
2026-09-1649.94%+2.941.001$118.02
2026-09-15———$120.31
2026-09-14———$120.89
2026-09-1149.86%+4.971.003$125.41
2026-09-1051.02%-2.991.017$124.10
2026-09-0951.52%-1.570.984$129.25
2026-09-0851.17%+0.131.027$127.54
2026-09-0446.98%+0.541.058$129.03
2026-09-0349.78%-0.141.030$132.33
2026-09-0250.43%+3.251.030$128.05
2026-09-0150.43%-1.950.990$122.28
2026-08-31———$127.93
2026-08-28———$128.80
2026-08-2750.72%+1.311.032$134.79
2026-08-26———$132.86
2026-08-2552.95%-0.030.975$135.90
2026-08-2453.80%-0.170.991$133.58
2026-08-2153.23%-0.771.035$132.59
2025-09-2943.06%-1.750.956$98.24
2025-09-2640.02%+1.041.009$96.21
2025-09-2538.60%-0.341.059$93.99
2025-09-2440.63%-1.271.010$92.78
2025-09-2342.43%-0.210.915$95.01
2025-09-2241.22%+2.720.972$95.18
2025-09-1936.19%-1.271.064$91.98
2025-09-1836.64%+0.271.033$87.57
2025-09-1738.23%-1.771.017$87.61
2025-09-1639.85%-0.010.987$88.85
2025-09-1539.13%-0.171.002$91.49
2025-09-1237.03%-0.441.063$90.03
2025-09-1137.25%+0.491.041$90.01
2025-09-1037.34%+1.421.024$88.09
2025-09-0935.37%-0.181.081$85.60
2025-09-0837.35%-0.721.014$86.38
2025-09-0537.62%-1.691.020$84.86
2025-09-0436.35%+0.121.026$82.68
2025-09-03———$83.80
2025-09-0238.58%+0.961.023$82.96
2025-08-2934.96%-2.361.033$80.05
2025-08-2833.33%-0.281.047$77.14
2025-08-2735.39%-0.610.984$77.54
2025-08-2634.64%-0.391.028$77.54
2025-08-2533.91%+0.071.035$76.00
2025-08-2233.37%+0.951.047$76.27
2025-08-2134.43%-0.251.025$74.77
2025-08-2032.71%-0.121.053$73.28
2025-08-1932.94%-0.531.043$71.22
2025-08-1833.08%-0.221.045$73.70
2025-08-1533.63%-0.701.044$73.88
2025-08-1433.72%-0.461.024$72.77
2025-08-1333.56%-1.771.039$73.04
2025-08-1233.58%-0.491.025$72.93
2025-08-1135.09%-2.001.004$71.89
2025-08-0834.62%-2.501.034$72.23
2025-08-0735.85%-1.271.039$72.37
2025-08-0635.29%-1.731.044$71.24
2025-08-0536.04%-0.511.041$69.58
2025-08-0436.07%-2.221.045$67.59
2025-08-0135.74%-0.291.034$65.03
2025-07-3133.66%-0.231.025$64.22
2025-07-3034.33%-1.661.024$64.74
2025-07-2935.07%-1.141.080$66.54
2025-07-2835.37%-0.931.001$66.12
2025-07-2535.50%+0.441.008$67.82
2025-07-2435.36%-0.991.045$68.21
2025-07-2336.76%-1.430.994$69.07
2025-07-2237.56%-1.880.976$70.28
2025-07-2136.07%-1.591.007$68.59
2025-07-1834.06%-1.091.029$66.19
2025-07-1736.23%-1.220.982$66.76
2025-07-1637.22%-1.080.973$67.49
2025-07-1536.45%-0.430.984$67.63
2025-07-1436.24%-1.571.003$68.58
2025-07-1135.55%-2.031.056$68.84
2025-07-1034.83%-0.201.033$67.52
2025-07-0935.75%-0.351.001$67.22
2025-07-0835.57%-0.861.029$66.39
2025-07-0736.60%-1.051.014$69.02
2025-07-0333.43%+0.501.089$68.45
2025-07-0234.72%+0.001.045$68.25
2025-07-0133.78%+0.071.077$67.58
2025-06-3032.74%+1.851.022$67.59
2025-06-2733.18%+0.871.059$65.50

The chart covers every session in the archive, 322 in total. The table lists the most recent 120.

25-delta risk reversal

Last 322 sessions

-10.0-5.00.05.010.03 Sep14 Jan12 May25 Aug9 Nov

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

4d (2026-11-13) · 11d (2026-11-20) · 18d (2026-11-27)

40%45%50%55%60%65%2026-11-13 (4d) — 25Δ C — IV 56.49%2026-11-13 (4d) — 30Δ C — IV 59.30%2026-11-13 (4d) — 35Δ C — IV 56.92%2026-11-13 (4d) — 40Δ C — IV 57.49%2026-11-13 (4d) — 45Δ C — IV 55.98%2026-11-13 (4d) — ATM — IV 55.81%2026-11-13 (4d) — 45Δ P — IV 58.29%2026-11-13 (4d) — 40Δ P — IV 58.55%2026-11-13 (4d) — 35Δ P — IV 59.06%2026-11-13 (4d) — 30Δ P — IV 60.10%2026-11-13 (4d) — 25Δ P — IV 60.53%4d2026-11-20 (11d) — 20Δ C — IV 54.12%2026-11-20 (11d) — 25Δ C — IV 54.08%2026-11-20 (11d) — 30Δ C — IV 53.37%2026-11-20 (11d) — 35Δ C — IV 49.68%2026-11-20 (11d) — 40Δ C — IV 53.15%2026-11-20 (11d) — 45Δ C — IV 53.47%2026-11-20 (11d) — ATM — IV 52.03%2026-11-20 (11d) — 45Δ P — IV 55.13%2026-11-20 (11d) — 40Δ P — IV 61.20%2026-11-20 (11d) — 35Δ P — IV 55.75%2026-11-20 (11d) — 30Δ P — IV 57.15%2026-11-20 (11d) — 25Δ P — IV 58.55%2026-11-20 (11d) — 20Δ P — IV 59.86%11d2026-11-27 (18d) — 15Δ C — IV 51.83%2026-11-27 (18d) — 20Δ C — IV 51.17%2026-11-27 (18d) — 25Δ C — IV 50.13%2026-11-27 (18d) — 30Δ C — IV 48.32%2026-11-27 (18d) — 35Δ C — IV 47.16%2026-11-27 (18d) — 40Δ C — IV 49.47%2026-11-27 (18d) — 45Δ C — IV 48.16%2026-11-27 (18d) — ATM — IV 45.34%2026-11-27 (18d) — 45Δ P — IV 55.97%2026-11-27 (18d) — 40Δ P — IV 51.36%2026-11-27 (18d) — 35Δ P — IV 50.95%2026-11-27 (18d) — 30Δ P — IV 52.52%2026-11-27 (18d) — 25Δ P — IV 53.09%2026-11-27 (18d) — 20Δ P — IV 53.98%18d10Δ 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
Delta4d11d18d
15Δ call——51.83%
20Δ call—54.12%51.17%
25Δ call56.49%54.08%50.13%
30Δ call59.30%53.37%48.32%
35Δ call56.92%49.68%47.16%
40Δ call57.49%53.15%49.47%
45Δ call55.98%53.47%48.16%
ATM55.81%52.03%45.34%
45Δ put58.29%55.13%55.97%
40Δ put58.55%61.20%51.36%
35Δ put59.06%55.75%50.95%
30Δ put60.10%57.15%52.52%
25Δ put60.53%58.55%53.09%
20Δ put—59.86%53.98%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-11-134$113.1455.81%60.53%56.49%+4.04+2.7019
2026-11-2011$113.3852.03%58.55%54.08%+4.47+4.2824
2026-11-2718$113.4245.34%53.09%50.13%+2.96+6.2727
2026-12-0425$112.6350.86%48.86%52.42%-3.56-0.2219
2026-12-1839$113.6346.93%50.36%50.11%+0.25+3.3151
2027-01-1567$112.3849.41%48.10%49.03%-0.93-0.8552
2027-02-19102$113.3247.35%48.92%48.98%-0.06+1.6136
2027-03-19130$113.1049.07%48.56%49.92%-1.37+0.1728
2027-05-21193$114.0050.02%49.07%51.10%-2.02+0.0736

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

9 listed expirations produced a usable reading

40%45%50%55%60%2026-11-13 — 4 days — at-the-money IV 55.81%2026-11-20 — 11 days — at-the-money IV 52.03%2026-11-27 — 18 days — at-the-money IV 45.34%2026-12-04 — 25 days — at-the-money IV 50.86%2026-12-18 — 39 days — at-the-money IV 46.93%2027-01-15 — 67 days — at-the-money IV 49.41%2027-02-19 — 102 days — at-the-money IV 47.35%2027-03-19 — 130 days — at-the-money IV 49.07%2027-05-21 — 193 days — at-the-money IV 50.02%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
2026-11-134 days$113.1455.81%$113.3319
2026-11-2011 days$113.3852.03%$113.8424
2026-11-2718 days$113.4245.34%$114.0027
2026-12-0425 days$112.6350.86%$113.6319
2026-12-1839 days$113.6346.93%$114.9751
2027-01-1567 days$112.3849.41%$114.9252
2027-02-19102 days$113.3247.35%$116.9236
2027-03-19130 days$113.1049.07%$118.0628
2027-05-21193 days$114.0050.02%$121.8036

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
49.07%
60 days
49.02%
90 days
47.88%
180 days
49.88%

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 322 sessions

0.800.901.001.101.203 Sep30 Jan21 May29 Aug9 Nov

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.