Options Skew Analytics

GILD option chain

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

Data as of 22 September 2026 (end of day)

2026-10-02(10 days)ATM 28.27%±7.16skew -0.09
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
04$31.20$33.85—$120.00—————
044$16.25$18.85—$135.00—————
03$15.30$18.00—$136.00—————
010$14.30$16.85—$137.00—————
049$11.70$14.00—$140.00—————
037$10.40$12.95—$141.00—————
06$9.45$12.55—$142.00—————
02$8.55$11.45—$143.00—————
04$8.10$10.40—$144.0030.89%$0.33$0.541344
012$7.30$9.20—$145.00—————
012$6.55$8.65—$146.0029.63%$0.58$0.746711
120$5.70$7.90—$147.0029.36%$0.75$0.92155
022$5.05$6.65—$148.0029.15%$0.95$1.15401
148$4.05$6.00—$149.0028.56%$1.11$1.44213
21316$4.25$5.25—$150.0028.96%$1.50$1.76175
29962$3.00$3.25—$152.5028.33%$2.41$2.793142
22147$1.81$2.1628.19%$155.00—$3.70$4.6541
83167$1.20$1.3529.24%$157.50—$4.60$6.9520
292$0.59$0.8128.78%$160.00—$6.75$9.1030

Forward $153.03. The 25-delta put carries -0.09 volatility points over the 25-delta call.

2026-10-09(17 days)ATM 27.65%±9.13skew +0.31
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$26.35$29.05—$125.00—————
02$16.45$19.40—$135.00—————
01$14.55$17.65—$137.00—————
01$13.85$16.40—$138.00—————
02$11.30$13.50—$141.00—————
12$10.40$12.55—$142.00—————
03$9.55$11.55—$143.00—————
02$8.70$11.70—$144.0029.75%$0.70$1.06350
—————$145.0028.34%$0.79$1.11117
01$6.85$9.20—$146.0028.19%$0.98$1.32100
118$7.00$8.20—$147.0027.74%$1.17$1.5343
0219$5.55$7.60—$148.0027.65%$1.43$1.8120
1515$5.65$7.05—$149.0027.45%$1.72$2.1133
058$4.25$6.20—$150.0027.34%$2.04$2.48313
843$3.65$4.10—$152.5027.58%$3.00$3.7550
26271$2.54$2.9827.75%$155.00—$3.30$5.00320
54562$1.59$2.1027.44%$157.50—————
2243$0.99$1.4127.42%$160.00—————
01$0.60$0.9827.91%$162.50—————
—————$165.00—$11.65$14.3510

Forward $153.00. The 25-delta put carries +0.31 volatility points over the 25-delta call.

2026-10-16(24 days)ATM 27.55%±10.81skew +0.55
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
08$51.35$54.65—$100.00—————
01$46.35$49.75—$105.00—————
012$31.45$34.15—$120.00—————
042$26.90$29.25—$125.00—————
0253$22.00$24.25—$130.00—————
3399$17.15$19.30—$135.00—————
4527$12.95$14.50—$140.00—————
—————$142.0029.85%$0.74$1.2150
—————$144.0028.23%$1.05$1.3421
281,120$9.10$9.95—$145.0028.15%$1.28$1.5431513
—————$147.0027.72%$1.75$2.0301
20$6.65$8.05—$148.0027.44%$1.99$2.3420
11$5.50$7.35—$149.0028.06%$2.31$2.8910
42843$5.70$6.25—$150.0027.56%$2.67$3.154095
33$4.25$4.90—$152.5027.55%$3.70$4.3511
4011,480$3.20$3.6527.54%$155.00—$4.80$5.701920
41$2.26$2.5927.04%$157.50—————
471,315$1.65$1.8027.17%$160.00—$8.20$9.9050
1212$1.06$1.3127.18%$162.50—————
27545$0.65$0.9927.50%$165.00—————
025$0.02$0.0828.07%$180.00—————

Forward $153.05. The 25-delta put carries +0.55 volatility points over the 25-delta call.

2026-10-23(31 days)ATM 27.66%±12.35skew +1.17
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$26.60$29.35—$125.00—————
01$15.20$18.00—$137.00—————
07$12.75$14.95—$140.00—————
01$12.05$14.70—$141.00—————
—————$142.0029.30%$1.02$1.5560
040$10.45$12.90—$143.00—————
02$9.45$12.00—$144.0028.86%$1.39$1.95990
03$8.65$11.50—$145.0028.56%$1.61$2.16490
012$8.10$10.10—$146.00—————
025$7.50$10.05—$147.0028.20%$2.12$2.7220
02$6.70$8.55—$148.0028.07%$2.42$3.05115
05$6.05$8.10—$149.0027.92%$2.75$3.4020
1439$5.95$7.35—$150.0027.64%$3.10$3.75170
2448$4.85$5.65—$152.5027.63%$4.20$4.9011
446$3.75$4.4527.70%$155.00—————
2158$2.77$3.4527.56%$157.50—$6.80$9.2570
30259$1.98$2.6327.43%$160.00—————
223$1.38$1.9827.39%$162.50—————
815$0.90$1.4727.24%$165.00—————
50$0.67$1.0027.30%$167.50—————

Forward $153.20. The 25-delta put carries +1.17 volatility points over the 25-delta call.

2026-11-20(59 days)ATM 30.59%±18.92skew +2.19
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$61.70$65.10—$90.00—————
010$56.60$60.15—$95.00—————
029$51.65$55.20—$100.00—————
06$46.85$50.30—$105.00—————
0135$42.40$44.55—$110.00—————
023$37.10$39.90—$115.00—————
072$32.25$35.25—$120.00—————
0222$28.00$30.10—$125.0036.07%$0.52$0.843793
0454$23.40$25.50—$130.0034.24%$0.86$1.2043518
2516$19.85$20.95—$135.0033.26%$1.44$1.885938
6580$15.55$16.85—$140.0031.97%$2.42$2.6246414
0674$12.30$13.30—$145.0031.39%$3.75$4.001877
374,787$9.35$9.75—$150.0031.06%$5.60$5.9018726
131,415$6.80$7.1530.59%$155.00—$7.85$8.35353
1251,111$4.75$5.0530.25%$160.00—$10.50$11.2591
4610,276$3.15$3.4529.87%$165.00—————
23489$2.06$2.3029.78%$170.00—————
21,146$1.12$1.6029.47%$175.00—————
064$0.68$1.0429.59%$180.00—————

Forward $153.87. The 25-delta put carries +2.19 volatility points over the 25-delta call.

2026-12-18(87 days)ATM 30.26%±22.72skew +2.38
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
04$66.50$70.35—$85.00—————
06$61.55$65.40—$90.00—————
088$56.60$59.90—$95.00—————
053$51.70$55.00—$100.00—————
056$46.80$50.65—$105.00—————
051$42.30$44.95—$110.00—————
077$37.75$40.25—$115.00—————
0132$33.25$35.65—$120.0034.16%$0.55$0.801,1136
1105$28.60$30.65—$125.0033.97%$0.88$1.424064
11,205$24.90$26.35—$130.0032.77%$1.44$1.948863
1152$20.65$21.70—$135.0032.16%$2.42$2.6848614
2287$16.90$18.50—$140.0031.62%$3.55$3.9032613
2243$12.85$14.80—$145.0030.95%$4.95$5.5019416
21406$10.45$11.25—$150.0030.67%$6.95$7.50561
42,268$8.15$8.7030.29%$155.00—$9.15$10.10840
91,085$6.05$6.5529.92%$160.00—$11.75$13.85140
11367$4.20$4.8529.34%$165.00—$14.80$16.4570
6377$2.95$3.5529.24%$170.00—$18.05$21.4030
4134$2.27$2.5229.67%$175.00—————
5135$1.55$1.8129.68%$180.00—————
329$0.78$1.2728.72%$185.00—————

Forward $153.79. The 25-delta put carries +2.38 volatility points over the 25-delta call.

2027-01-15(115 days)ATM 29.55%±25.49skew +1.20
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
0234$62.00$65.45—$90.00—————
0121$59.40$63.15—$92.50—————
0106$57.25$60.20—$95.00—————
060$54.65$57.55—$97.50—————
0368$52.15$55.15—$100.00—————
02,464$47.75$50.05—$105.00—————
0205$43.00$45.10—$110.00—————
01,070$38.25$40.40—$115.00—————
1833$34.20$35.90—$120.0033.74%$0.88$1.391,1407
0420$29.15$31.45—$125.0032.57%$1.22$2.003930
11,240$24.90$27.10—$130.0032.11%$1.96$2.816060
01,132$20.95$23.15—$135.0031.37%$3.10$3.601,3180
31,410$18.00$19.30—$140.0030.85%$4.40$4.901,01346
01,882$13.95$15.95—$145.0030.39%$6.00$6.601,17048
132,746$11.60$12.90—$150.0029.91%$7.95$8.6545822
2870$8.55$10.3029.50%$155.00—$10.30$11.10427
61,070$7.40$7.8530.15%$160.00—$12.95$14.60190
10696$5.55$6.2029.92%$165.00—$16.25$18.15170
36678$4.15$4.7029.63%$170.00—————
01,961$3.15$3.5529.65%$175.00—————
0324$2.11$2.6929.21%$180.00—$27.55$29.4002

Forward $153.71. The 25-delta put carries +1.20 volatility points over the 25-delta call.

2027-02-19(150 days)ATM 30.63%±30.28skew +2.12
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$76.60$79.95—$75.00—————
01$62.05$65.50—$90.00—————
02$57.15$60.15—$95.00—————
01$47.70$50.70—$105.00—————
016$43.05$45.85—$110.00—————
023$38.50$41.55—$115.00—————
06$34.55$36.60—$120.0034.17%$1.57$2.09573
043$30.35$32.50—$125.0033.07%$2.08$2.811730
0100$26.60$28.35—$130.0032.88%$2.95$3.951931
075$22.50$24.60—$135.0032.45%$4.15$5.15670
0238$20.00$21.35—$140.0031.21%$5.30$6.40320
084$16.75$17.90—$145.0030.89%$7.30$7.95340
2746$13.85$14.50—$150.0030.66%$9.55$9.95421
048$10.90$11.9530.43%$155.00—$11.75$12.65402
577$9.25$9.8530.91%$160.00—$14.05$15.50340
090$7.35$7.8030.34%$165.00—$17.05$19.65150
263$5.20$6.2529.30%$170.00—————
6123$4.75$5.0530.45%$175.00—————
132$3.70$4.0030.34%$180.00—————
05$2.59$3.2029.86%$185.00—————

Forward $154.21. The 25-delta put carries +2.12 volatility points over the 25-delta call.

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.