Options Skew Analytics

GDX option chain

Strikes around the forward, as they were quoted at the close

Data as of 22 September 2026 (end of day)

2026-09-25(3 days)ATM 48.36%±4.31skew +0.35
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
18$8.35$10.20—$88.50—————
096$8.15$9.45—$89.0056.03%$0.03$0.06330156
26721$8.00$8.45—$90.0052.42%$0.05$0.065,044976
656$7.25$7.50—$91.0051.50%$0.08$0.10715584
12221$6.10$6.55—$92.0049.38%$0.11$0.152,363631
24126$5.15$5.75—$93.0048.38%$0.19$0.228,4651,319
140437$4.30$4.90—$94.0047.57%$0.30$0.34680546
4711,108$3.70$3.90—$95.0049.09%$0.49$0.602,1701,212
6962,507$2.96$3.15—$96.0047.77%$0.74$0.80345306
2,41719,715$2.36$2.50—$97.0048.45%$1.04$1.23165373
2,20311,624$1.83$1.90—$98.0048.06%$1.51$1.6017699
2,64214,144$1.36$1.4949.02%$99.00—$1.98$2.2822133
7,30420,851$1.04$1.0649.31%$100.00—$2.57$2.9445986
4201,052$0.63$0.7547.42%$101.00—$3.25$3.758620
95212,525$0.53$0.5550.26%$102.00—$3.90$4.60820
51410,373$0.30$0.3949.30%$103.00—$4.95$5.50800
415,255$0.20$0.2649.64%$104.00—$5.85$6.40590
1,4808,833$0.15$0.1851.13%$105.00—$6.75$7.10122123
—————$106.00—$7.75$8.35545
—————$107.00—$8.65$10.1520
—————$108.00—$9.70$11.2022

Forward $98.31. The 25-delta put carries +0.35 volatility points over the 25-delta call.

2026-10-02(10 days)ATM 43.24%±7.04skew -1.91
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
313$7.45$8.00—$91.0043.78%$0.47$0.5273664
03$6.95$7.55—$91.5043.66%$0.54$0.602077
053$6.50$7.25—$92.0043.70%$0.60$0.7235751
1267$6.10$6.85—$92.5043.73%$0.68$0.841,82124
23141$5.90$6.35—$93.0043.74%$0.78$0.96755199
054$5.35$5.95—$93.5043.42%$0.91$1.0481331
23536$5.20$5.75—$94.0043.10%$1.02$1.161,765166
536$4.75$5.25—$94.5043.59%$1.19$1.335083
202664$4.40$4.90—$95.0043.38%$1.33$1.48491102
3627$4.05$4.55—$95.5043.21%$1.50$1.632612
2012,046$3.80$4.30—$96.0042.99%$1.63$1.8419524
164223$3.60$4.00—$96.5043.60%$1.86$2.082358
195637$3.35$3.65—$97.0042.47%$2.04$2.1811,35810,259
2,242414$2.95$3.10—$98.0043.88%$2.56$2.7714321
337186$2.33$2.6442.92%$99.00—$3.10$3.352,8684
8376,280$2.04$2.1743.56%$100.00—$3.65$3.902444
3,5291,022$1.74$1.8444.44%$101.00—$4.25$4.60843
3551,317$1.35$1.5544.11%$102.00—$4.95$5.401730
2541,235$1.13$1.2744.55%$103.00—$5.70$6.05792
1071,875$0.91$1.0745.02%$104.00—$6.50$7.00290
275441$0.75$0.9145.84%$105.00—$7.20$7.85202

Forward $98.36. The 25-delta put carries -1.91 volatility points over the 25-delta call.

2026-10-09(17 days)ATM 43.51%±9.23skew -0.42
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$93.5043.52%$1.54$1.822225
6691$5.95$6.35—$94.0043.23%$1.67$1.971,2815
09$5.55$6.00—$94.5043.36%$1.86$2.1403
7185$5.50$5.70—$95.0042.37%$1.99$2.221725
50$5.00$5.35—$95.50—————
2621$4.85$5.05—$96.0041.98%$2.42$2.51524
40$4.55$4.80—$96.5043.11%$2.62$2.9210
19461$4.15$4.50—$97.0041.85%$2.79$2.9949107
1056$3.90$4.20—$97.5043.06%$3.05$3.40340
1022$3.65$4.00—$98.0043.40%$3.30$3.70340
04$3.45$3.7043.31%$98.50—$3.55$3.9530
664$3.20$3.5543.68%$99.00—$3.85$4.2590
279$2.99$3.2543.27%$99.50—$4.10$4.50180
55310$2.79$3.0543.39%$100.00—$4.40$4.601450
02$2.60$2.8843.62%$100.50—$4.65$5.1540
1048$2.42$2.6643.50%$101.00—$4.85$5.4530
25$2.25$2.4643.43%$101.50—$5.15$5.8040
1376$2.09$2.3143.61%$102.00—$5.60$6.1031
4193$1.93$2.1343.49%$102.50—$5.85$6.5041
1436$1.79$1.9943.64%$103.00—$6.35$6.90960
43$1.67$1.8743.94%$103.50—————

Forward $98.32. The 25-delta put carries -0.42 volatility points over the 25-delta call.

2026-10-16(24 days)ATM 42.65%±10.77skew -0.70
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$91.5043.50%$1.46$1.7613
26640$8.10$8.35—$92.0043.19%$1.63$1.825,49339
02$7.50$8.05—$92.5043.10%$1.70$2.032610
722,913$7.15$7.65—$93.0043.09%$1.93$2.1161037
—————$93.5043.15%$2.03$2.35181
8184$6.55$6.95—$94.0042.56%$2.25$2.3783537
01$6.15$6.80—$94.5043.20%$2.40$2.701612
4695,634$6.20$6.30—$95.0042.65%$2.63$2.755,989883
85$5.65$6.00—$95.5042.60%$2.79$2.982102
253500$5.50$5.70—$96.0042.66%$3.05$3.1568757
422$5.10$5.45—$96.50—————
2401,653$4.90$5.15—$97.0042.45%$3.45$3.602,32771
43400$4.45$4.65—$98.0042.87%$3.95$4.152,35915
2081,291$3.95$4.1542.64%$99.00—$4.45$4.709741
77711,038$3.60$3.7543.29%$100.00—$5.05$5.201,034512
187623$3.25$3.3543.60%$101.00—$5.65$5.8078735
77667$2.74$3.0543.26%$102.00—$6.25$6.604116
892,374$2.43$2.6943.30%$103.00—$6.95$7.3533916
3571,411$2.13$2.3443.11%$104.00—$7.65$8.0018122
5,3627,472$1.97$2.1144.04%$105.00—$8.25$8.805205
1663,240$1.68$1.8743.89%$106.00—$9.15$9.60790

Forward $98.50. The 25-delta put carries -0.70 volatility points over the 25-delta call.

2026-10-23(31 days)ATM 42.03%±12.07
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
1230$7.35$7.85—$93.5042.44%$2.52$2.71310
337$7.00$7.55—$94.0042.27%$2.67$2.891125
127$6.60$7.25—$94.5042.04%$2.79$3.10250
37233$6.30$7.00—$95.0041.92%$2.96$3.303867
218$6.05$6.60—$95.5042.51%$3.30$3.5020
1224$5.85$6.35—$96.0042.37%$3.50$3.70160
7975$5.85$6.15—$96.5042.39%$3.70$3.95201
012$5.30$5.80—$97.0042.33%$3.90$4.202090
29$5.05$5.50—$97.5042.42%$4.15$4.4530
3730$5.00$5.25—$98.0042.00%$4.30$4.70541
04$4.60$5.00—$98.50—————
530$4.50$4.8042.48%$99.00—$4.95$5.20250
014$4.15$4.5541.83%$99.50—$5.10$5.50500
1587$3.95$4.3541.99%$100.00—$5.50$5.801760
11$3.70$4.2542.29%$100.50—————
1221$3.55$4.0542.53%$101.00—$6.05$6.40310
543$3.35$3.7542.04%$101.50—$6.40$6.75500
629$3.20$3.6042.37%$102.00—$6.75$7.05510
22$3.05$3.5042.86%$102.50—————
5322$2.89$3.2042.34%$103.00—————
92$2.74$3.0542.48%$103.50—————

Forward $98.57. Not enough surviving quotes on both wings to measure the skew here.

2026-10-30(38 days)ATM 43.44%±13.81
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
233$8.85$9.40—$92.0042.99%$2.48$2.783334
0130$8.20$8.70—$93.0042.82%$2.77$3.15283
619$7.60$8.05—$94.0042.07%$3.15$3.35133
425$7.35$7.80—$94.5042.93%$3.40$3.7040
1667$7.00$7.50—$95.0042.66%$3.55$3.90641
114$6.85$7.20—$95.5042.95%$3.80$4.15910
24113$6.60$6.90—$96.0042.77%$4.00$4.35121
350$6.30$6.65—$96.5042.94%$4.25$4.6021
4523$6.05$6.35—$97.0042.84%$4.45$4.851031
23$5.80$6.10—$97.5042.89%$4.70$5.1010
12154$5.55$5.85—$98.0042.67%$5.00$5.257150
583$5.30$5.60—$98.50—$5.25$5.65250
933$5.10$5.4043.45%$99.00—————
047$4.90$5.1543.44%$99.50—————
101477$4.65$4.9543.38%$100.00—$6.05$6.4570
125$4.50$4.7543.66%$100.50—————
668$4.25$4.5543.49%$101.00—————
—————$101.50—$6.95$7.4020
54$3.90$4.1543.58%$102.00—$7.25$7.7540
4115$3.55$3.8043.67%$103.00—————
011$3.25$3.5043.96%$104.00—————

Forward $98.50. Not enough surviving quotes on both wings to measure the skew here.

2026-11-20(59 days)ATM 44.06%±17.51skew -0.83
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
0135$12.20$12.85—$89.0043.60%$2.62$2.8998011
262,120$11.50$12.05—$90.0043.11%$2.96$3.0518,166227
2862$10.90$11.40—$91.0043.19%$3.25$3.451,53647
32229$10.50$10.75—$92.0042.95%$3.60$3.7513642
10203$9.80$10.10—$93.0043.26%$4.00$4.2023063
3500$9.05$9.55—$94.0043.06%$4.40$4.5523539
29760$8.70$8.95—$95.0043.20%$4.85$5.004,07637
11523$8.15$8.40—$96.0043.18%$5.30$5.451878
8756$7.60$7.90—$97.0043.18%$5.70$6.00364
1,0232,132$7.25$7.35—$98.0043.34%$6.30$6.452,15470
40264$6.65$6.9043.51%$99.00—$6.75$7.10540
4883,950$6.35$6.4543.97%$100.00—$7.35$7.551,29128
16102$5.95$6.0544.13%$101.00—$7.95$8.352422
11101$5.35$5.6543.51%$102.00—$8.55$8.752615
4671$5.05$5.3043.87%$103.00—$9.10$9.401124
13464$4.70$4.9543.95%$104.00—$9.80$10.20581
6472,475$4.45$4.6044.22%$105.00—$10.45$10.709934
284$4.10$4.3044.20%$106.00—$11.10$11.60202
32360$3.80$4.0044.22%$107.00—$11.85$12.25913
21198$3.50$3.7544.30%$108.00—$12.60$13.40280
443$3.25$3.5044.43%$109.00—$13.30$14.00210

Forward $98.85. The 25-delta put carries -0.83 volatility points over the 25-delta call.

2026-12-18(87 days)ATM 43.14%±20.92
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
2277$13.55$14.05—$89.0043.04%$3.60$3.8523814
1306,884$12.95$13.40—$90.0043.23%$4.00$4.205,298873
852,839$12.35$12.80—$91.0042.99%$4.30$4.556,0917
31,588$11.75$12.25—$92.0043.23%$4.75$4.958691
0158$11.10$11.65—$93.0043.20%$5.15$5.355648
5630$10.60$11.05—$94.0043.35%$5.60$5.805142
22610,725$10.30$10.45—$95.0043.38%$6.05$6.251,98890
215748$9.60$10.00—$96.0043.31%$6.50$6.7031012
4383$9.10$9.55—$97.0043.40%$7.00$7.203,9601
183$8.50$8.95—$98.0043.39%$7.45$7.757363
5165$8.20$8.55—$99.0043.01%$7.80$8.304290
58330,744$7.90$8.1043.41%$100.00—$8.60$8.851,2964
0457$7.30$7.7543.18%$101.00—$9.10$9.456590
402407$6.95$7.2543.12%$102.00—$9.70$10.05993
21,171$6.55$6.9043.23%$103.00—$10.25$10.652486
8131$6.15$6.5543.25%$104.00—$11.00$11.303195
2391,916$5.90$6.1543.44%$105.00—$11.60$11.955864
300208$5.50$5.8043.28%$106.00—$12.35$12.65641
3709$5.20$5.5543.56%$107.00—$12.90$13.35160
3451$4.95$5.2043.64%$108.00—$13.70$14.058050
1427$4.70$4.9043.76%$109.00—$14.20$14.75300

Forward $99.33. Not enough surviving quotes on both wings to measure the skew here.

How to read this

Calls on the left, puts on the right, the strike between them — the layout every chain uses. Each block is one expiration, and the heading carries its days to expiry, the at-the-money implied volatility, and the one-standard-deviation move that volatility implies over that time.

Only the 21 strikes nearest the forward are stored, which is the part of the board that carries the volume. The shaded side is in the money: below the forward for calls, above it for puts.

Implied volatility is shown on the out-of-the-money side only. An in-the-money option is nearly all intrinsic value quoted on a wide market, so a volatility solved from it would look authoritative and mean very little. The price is still shown, because the price is real; the blank is deliberate.