Options Skew Analytics

SPX option chain

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

Data as of 24 September 2026 (end of day)

2026-10-16(22 days)ATM 11.91%±225.72
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
13763$121.60$122.80—$7,670.0012.54%$70.40$71.3047417
3943,542$118.30$119.50—$7,675.0012.48%$72.10$72.902,398169
34518$115.00$116.20—$7,680.0012.42%$73.80$74.60531184
7451$111.90$112.70—$7,685.0012.36%$75.50$76.4044222
57440$108.70$109.40—$7,690.0012.30%$77.30$78.2018275
102236$105.60$106.40—$7,695.0012.24%$79.20$80.00129113
1,58719,154$102.50$103.30—$7,700.0012.18%$81.00$81.9021,1022,184
38740$99.40$100.10—$7,705.0012.13%$83.00$83.8072499
210346$96.40$97.20—$7,710.0012.07%$85.00$85.80523122
26334$93.50$94.30—$7,715.0012.02%$87.00$87.9054299
33286$90.60$91.40—$7,720.0011.96%$89.10$89.9082211
723,395$87.70$88.5011.90%$7,725.00—$91.20$92.103,24266
143,032$84.90$85.7011.85%$7,730.00—$93.40$94.201,43713
5160$82.10$83.0011.80%$7,735.00—$95.60$96.508143
19524$79.40$80.1011.74%$7,740.00—$97.90$98.703247
150607$76.80$77.5011.70%$7,745.00—$100.10$101.103570
1,35410,539$74.10$74.9011.64%$7,750.00—$102.60$103.507,9671,284
38402$71.60$72.3011.59%$7,755.00—$104.80$105.903505
7336$69.10$69.9011.55%$7,760.00—$107.30$108.403391
70234$66.70$67.3011.50%$7,765.00—$109.80$110.906430
33802$64.30$65.0011.46%$7,770.00—$112.40$113.5056510

Forward $7,721.50. Not enough surviving quotes on both wings to measure the skew here.

2026-11-20(57 days)ATM 13.29%±406.82
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
1141$193.40$194.40—$7,695.0013.77%$141.30$142.403631
4,60010,993$190.30$191.20—$7,700.0013.74%$143.40$144.2013,0411,774
2108$187.20$188.20—$7,705.0013.70%$145.00$146.101435
2280$184.10$185.10—$7,710.0013.65%$146.80$147.904525
0180$180.90$182.00—$7,715.0013.61%$148.70$149.801131
14263$177.90$179.00—$7,720.0013.57%$150.60$151.802521
771,804$174.90$175.90—$7,725.0013.54%$152.80$153.70671286
5238$171.90$172.90—$7,730.0013.49%$154.50$155.704182
5223$169.00$170.00—$7,735.0013.46%$156.60$157.702890
10295$166.00$167.00—$7,740.0013.42%$158.50$159.701340
062$163.00$164.30—$7,745.0013.39%$160.90$161.80633188
1,6115,551$160.30$161.2013.36%$7,750.00—$163.00$163.804,626957
22134$157.40$158.3013.31%$7,755.00—$164.90$165.90910
871,164$154.50$155.4013.27%$7,760.00—$167.20$168.101,181142
0109$151.70$152.7013.24%$7,765.00—$169.40$170.207194
7218$149.00$150.0013.21%$7,770.00—$171.60$172.40170113
178852$146.30$147.2013.17%$7,775.00—$173.80$174.60705132
8253$143.50$144.5013.13%$7,780.00—$176.00$176.901238
5120$140.80$142.0013.11%$7,785.00—$178.30$179.207721
2272$138.20$139.2013.07%$7,790.00—$180.60$181.6019827
0115$135.60$136.6013.04%$7,795.00—$182.90$183.90620

Forward $7,747.31. Not enough surviving quotes on both wings to measure the skew here.

2026-12-18(85 days)ATM 13.66%±511.99
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
91,702$232.40$233.20—$7,720.0014.10%$184.90$185.701,6382
323,156$229.30$230.10—$7,725.0014.07%$186.70$187.601,73732
952226$226.20$227.00—$7,730.0014.03%$188.50$189.50218734
1,174191$223.10$223.90—$7,735.0014.00%$190.50$191.401661,169
1,342123$220.10$220.90—$7,740.0013.96%$192.40$193.30621,339
56478$217.00$217.90—$7,745.0013.93%$194.30$195.2026546
2,49318,316$214.00$214.90—$7,750.0013.89%$196.20$197.1018,1802,597
1,568181$211.10$211.90—$7,755.0013.86%$198.20$199.101911,568
1,404772$208.10$209.00—$7,760.0013.82%$200.20$201.107861,404
1,4212,283$205.20$206.00—$7,765.0013.79%$202.20$203.102,2611,419
2,7942,441$202.30$203.1013.76%$7,770.00—$204.30$205.202,3872,833
1,2633,091$199.40$200.2013.72%$7,775.00—$206.30$207.202,5161,391
1,6552,493$196.50$197.5013.69%$7,780.00—$208.40$209.302,2521,668
541,988$193.70$194.5013.66%$7,785.00—$210.50$211.401,91918
312,462$190.90$191.7013.63%$7,790.00—$212.70$213.602,37928
283,726$188.10$188.9013.59%$7,795.00—$214.80$215.703,67627
61632,386$185.30$186.1013.56%$7,800.00—$217.00$217.8021,177711
71,594$182.60$183.5013.53%$7,805.00—$219.20$220.101,5570
12993$179.90$180.6013.50%$7,810.00—$221.40$222.309460
01,979$177.20$178.0013.47%$7,815.00—$223.70$224.601,9210
01,992$174.50$175.4013.44%$7,820.00—$225.90$226.901,9000

Forward $7,767.93. Not enough surviving quotes on both wings to measure the skew here.

2027-01-15(113 days)ATM 13.76%±597.16
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
08$272.70$273.80—$7,740.0014.28%$214.30$215.4070
01$269.60$270.70—$7,745.00—————
472,304$266.50$267.50—$7,750.0014.21%$218.00$218.902,54534
051$263.40$264.50—$7,755.0014.18%$219.80$220.80510
0105$260.30$261.50—$7,760.0014.15%$221.60$222.701060
—————$7,765.0014.12%$223.50$224.60120
05$254.20$255.40—$7,770.0014.08%$225.40$226.5080
72,092$251.20$252.20—$7,775.0014.05%$227.40$228.401,3200
02$248.30$249.40—$7,780.0014.02%$229.30$230.3030
—————$7,785.0013.99%$231.20$232.3002
—————$7,790.0013.96%$233.20$234.3040
5186,641$236.50$237.5013.89%$7,800.00—$237.20$238.205,53859
10$233.60$234.6013.86%$7,805.00—————
024$230.70$231.7013.83%$7,810.00—$241.30$242.3010
01$225.00$226.0013.77%$7,820.00—————
81,467$222.20$223.2013.74%$7,825.00—$247.60$248.604800
1040$219.40$220.4013.72%$7,830.00—$249.70$250.80410
010$216.60$217.6013.69%$7,835.00—$251.90$252.90240
01$213.90$214.9013.66%$7,840.00—$254.00$255.10680
183,233$208.50$209.4013.60%$7,850.00—$258.40$259.409891
—————$7,860.00—$262.90$263.90220

Forward $7,799.29. Not enough surviving quotes on both wings to measure the skew here.

2027-02-19(148 days)ATM 14.10%±703.11
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$338.10$339.40—$7,730.0014.84%$241.80$242.8070
—————$7,740.0014.78%$245.20$246.3050
6919$325.60$326.70—$7,750.0014.72%$248.80$249.707040
01$319.50$320.50—$7,760.0014.66%$252.30$253.4010
—————$7,770.0014.60%$255.90$257.0010
0879$310.20$311.20—$7,775.0014.58%$257.80$258.808070
—————$7,790.0014.49%$263.30$264.4060
21,822$295.10$296.00—$7,800.0014.43%$267.20$268.101,62824
—————$7,810.0014.38%$271.10$272.10028
—————$7,820.0014.32%$275.00$276.0008
0722$280.40$281.40—$7,825.0014.29%$277.00$278.004930
10$277.50$278.5014.27%$7,830.00—$279.00$280.000214
02$271.70$272.8014.21%$7,840.00—$283.00$284.1001
2852$266.10$267.0014.16%$7,850.00—$287.20$288.101,2650
05$254.90$255.9014.05%$7,870.00—————
0468$252.10$253.3014.03%$7,875.00—$297.80$298.803600
—————$7,880.00—$300.00$301.0018628
—————$7,890.00—$304.30$305.40600
200797$238.70$239.6013.90%$7,900.00—$308.80$309.807190
020$228.20$229.2013.81%$7,920.00—$318.00$319.001970
11,540$225.60$226.7013.78%$7,925.00—$320.40$321.301,002125

Forward $7,828.47. Not enough surviving quotes on both wings to measure the skew here.

2027-03-19(176 days)ATM 14.46%±788.49
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
39,334$472.20$473.50—$7,600.0016.07%$227.70$228.608,77592
41,715$454.80$456.20—$7,625.0015.92%$234.70$235.802,0994
03,842$437.80$438.80—$7,650.0015.77%$242.10$243.105,01633
11,618$420.70$422.00—$7,675.0015.63%$249.70$250.701,07334
4895,676$404.40$405.50—$7,700.0015.48%$257.50$258.505,6471,402
0956$388.00$389.20—$7,725.0015.33%$265.60$266.801,5070
4015,951$372.20$373.30—$7,750.0015.20%$274.20$275.205,086442
0612$356.70$357.70—$7,775.0015.06%$282.90$284.109790
289,278$341.40$342.40—$7,800.0014.92%$292.20$293.109,241546
51,140$326.50$327.40—$7,825.0014.79%$301.70$302.701,12925
1013,614$311.90$312.80—$7,850.0014.66%$311.50$312.504,06778
301542$297.60$298.6014.54%$7,875.00—$321.50$322.70590301
194,078$283.80$284.7014.42%$7,900.00—$332.20$333.104,07065
2633$270.20$271.3014.30%$7,925.00—$343.10$344.206280
552,868$257.10$258.1014.18%$7,950.00—$354.40$355.408647
11476$244.40$245.4014.07%$7,975.00—$366.00$367.203420
2,17565,188$232.10$233.1013.97%$8,000.00—$378.20$379.2059,2802,233
102,820$220.10$221.2013.86%$8,025.00—$390.70$391.801110
32,934$208.60$209.7013.76%$8,050.00—$403.30$404.603580
7467$197.50$198.6013.66%$8,075.00—$416.60$418.00620
68,721$186.80$187.9013.57%$8,100.00—$430.40$431.605790

Forward $7,850.36. Not enough surviving quotes on both wings to measure the skew here.

2027-04-16(204 days)ATM 14.68%±864.87
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
4271$501.80$503.90—$7,625.0016.26%$255.60$256.804707
0588$485.00$486.60—$7,650.0016.12%$262.90$264.006898
2290$467.90$469.50—$7,675.0015.98%$270.30$271.5049395
762,486$451.50$452.90—$7,700.0015.84%$278.10$279.102,59312
16812$434.90$436.40—$7,725.0015.70%$286.10$287.202313
9824$419.00$420.50—$7,750.0015.57%$294.20$295.402,69313
154355$403.10$404.70—$7,775.0015.43%$302.60$304.003612
315677$387.80$389.00—$7,800.0015.30%$311.60$312.706168
66450$372.60$373.80—$7,825.0015.17%$320.50$321.903892
7390$357.60$359.00—$7,850.0015.05%$330.10$331.2055874
3121$343.00$344.30—$7,875.0014.92%$339.80$341.001340
21,148$328.80$330.0014.80%$7,900.00—$349.70$350.902360
1272$314.80$316.1014.69%$7,925.00—$360.10$361.402380
1318$301.30$302.6014.58%$7,950.00—$370.90$372.002180
151$288.00$289.2014.47%$7,975.00—$382.00$383.201210
532,668$275.00$276.2014.35%$8,000.00—$393.40$394.502,21233
3117$262.50$263.7014.25%$8,025.00—$405.20$406.40860
0667$250.30$251.5014.15%$8,050.00—$417.40$418.407320
072$238.40$239.7014.05%$8,075.00—$429.70$431.00690
292,137$227.00$228.1013.95%$8,100.00—$442.40$443.803120
286$215.90$217.2013.86%$8,125.00—$455.40$457.201622

Forward $7,878.33. Not enough surviving quotes on both wings to measure the skew here.

2027-05-21(239 days)ATM 15.02%±961.59
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
0621$542.50$544.30—$7,650.0016.59%$289.60$291.002621
224$525.50$527.40—$7,675.0016.46%$297.00$298.501673
01,838$509.00$510.80—$7,700.0016.33%$304.70$306.002,3371
829$492.60$494.40—$7,725.0016.20%$312.40$313.902611
0527$476.50$478.20—$7,750.0016.07%$320.40$321.804264
2119$460.50$462.30—$7,775.0015.94%$328.60$330.203512
01,460$444.90$446.60—$7,800.0015.82%$337.30$338.601,7600
0150$429.30$431.20—$7,825.0015.70%$345.90$347.502280
1731$414.30$416.00—$7,850.0015.57%$354.90$356.405580
0521$399.40$401.10—$7,875.0015.46%$364.40$365.8039184
4518$384.80$386.40—$7,900.0015.33%$373.80$375.30348600
2212$370.50$372.2015.22%$7,925.00—$383.60$385.301670
11,415$356.40$357.7015.10%$7,950.00—$393.80$395.301730
0157$342.70$344.3015.00%$7,975.00—$404.20$405.90620
15,105$329.20$330.4014.88%$8,000.00—$415.20$416.501,61351
0238$316.10$317.7014.79%$8,025.00—$426.00$427.703280
0421$303.20$304.7014.68%$8,050.00—$437.30$438.904040
0125$290.70$292.3014.58%$8,075.00—$449.00$450.701460
05,444$278.50$279.7014.48%$8,100.00—$461.10$462.6060416
57321$266.70$268.0014.39%$8,125.00—$473.40$475.101960
0441$255.20$256.6014.30%$8,150.00—$486.00$487.603028

Forward $7,911.37. 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.