Options Skew Analytics

STT option chain

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

Data as of 9 November 2026 (end of day)

2026-12-18(39 days)ATM 27.36%±15.44skew +4.86
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
03$75.50$79.10—$95.00—————
01$65.50$69.50—$105.00—————
03$60.60$64.60—$110.00—————
016$50.60$54.50—$120.00—————
031$45.70$49.60—$125.00—————
019$41.10$44.10—$130.00—————
04$36.40$38.90—$135.00—————
017$31.30$33.80—$140.00—————
010$27.00$29.00—$145.00—————
09$22.60$24.30—$150.00—————
026$18.00$19.80—$155.0033.27%$1.20$1.801016
042$13.50$15.50—$160.0030.87%$1.95$2.4018828
025$10.60$11.80—$165.0028.94%$3.10$3.403401
083$7.40$8.20—$170.0028.00%$4.80$5.201705
6202$4.80$5.2027.05%$175.00—$7.00$7.701823
2111$2.85$3.2026.17%$180.00—$10.20$11.20340
7189$1.65$1.9026.01%$185.00—$13.50$15.301760
15147$0.90$1.1026.04%$190.00—$17.80$19.5060
0217$0.45$0.6526.25%$195.00—————

Forward $172.64. The 25-delta put carries +4.86 volatility points over the 25-delta call.

2027-01-15(67 days)ATM 29.54%±21.82skew +4.48
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
014$70.70$74.60—$100.00—————
023$65.80$69.80—$105.00—————
0308$60.90$64.70—$110.00—————
045$56.00$60.00—$115.00—————
0108$51.40$54.30—$120.00—————
068$46.60$49.20—$125.00—————
047$41.70$44.20—$130.00—————
0166$36.90$39.80—$135.00—————
096$32.20$35.10—$140.00—————
0140$28.00$30.70—$145.0035.37%$1.15$1.852780
0417$23.20$25.90—$150.0035.53%$2.05$2.703030
025$19.80$21.70—$155.0033.74%$2.80$3.50430
2208$15.80$17.60—$160.0032.54%$4.00$4.601541
283$12.30$14.00—$165.0031.82%$5.40$6.401222
138$9.70$10.90—$170.0029.91%$7.20$7.902455
8604$7.30$7.6029.51%$175.00—$9.70$10.40850
2432$5.20$6.4030.42%$180.00—$12.40$13.302120
0150$3.40$4.7029.57%$185.00—$15.50$17.90640
4188$2.25$2.8528.06%$190.00—$19.30$21.701050
1146$1.45$2.0028.01%$195.00—$23.30$25.80110
0125$0.95$1.2027.53%$200.00—$27.80$30.3040

Forward $172.38. The 25-delta put carries +4.48 volatility points over the 25-delta call.

2027-02-19(102 days)ATM 29.49%±26.98skew +5.81
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
010$52.00$54.50—$120.00—————
04$37.90$40.30—$135.00—————
—————$140.0035.11%$1.35$2.2510
—————$145.0034.18%$1.90$3.0010
14$21.50$23.20—$155.0032.21%$3.50$5.101320
02$17.50$19.70—$160.0031.45%$4.80$6.5020
012$14.30$16.00—$165.0030.57%$6.30$8.2020
—————$170.0030.19%$8.50$10.2090
012$9.00$10.5029.52%$175.00—$10.70$12.7060
52$6.80$7.6027.97%$180.00—$13.30$16.0030
091$4.80$5.6026.90%$185.00—————
049$3.40$4.1026.40%$190.00—$19.80$22.6010
020$2.40$2.9526.12%$195.00—$23.90$26.5070
034$1.65$2.1025.91%$200.00—$28.20$30.7080
013$0.75$1.1025.97%$210.00—————

Forward $173.03. The 25-delta put carries +5.81 volatility points over the 25-delta call.

2027-03-19(130 days)ATM 29.38%±30.38skew +3.65
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$71.00$75.10—$100.00—————
02$66.50$69.40—$105.00—————
01$57.00$59.90—$115.00—————
010$52.30$55.20—$120.00—————
028$47.60$50.40—$125.00—————
04$42.90$45.50—$130.00—————
09$38.40$41.00—$135.00—————
011$34.50$36.90—$140.0033.79%$2.10$2.5090
093$30.10$32.60—$145.0033.39%$2.50$3.80220
08$26.20$28.60—$150.0031.71%$3.30$4.405113
06$22.50$24.60—$155.0031.76%$4.40$6.10250
0135$18.30$21.00—$160.0030.96%$5.80$7.502310
033$16.10$17.50—$165.0030.13%$7.70$8.90645
350$13.10$14.40—$170.0029.96%$9.60$11.40230
0173$10.60$11.8029.49%$175.00—$12.00$13.80380
0239$8.30$9.6028.93%$180.00—$14.60$17.001090
0212$6.40$7.9028.73%$185.00—$17.60$20.401110
020$4.80$6.6028.71%$190.00—$20.90$22.9060
057$3.40$5.2028.10%$195.00—$24.60$27.3050
01,707$2.55$3.3026.69%$200.00—$28.70$31.0020
087$1.20$1.7525.85%$210.00—————

Forward $173.27. The 25-delta put carries +3.65 volatility points over the 25-delta call.

2027-06-17(220 days)ATM 29.65%±40.08skew +5.59
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
01$72.30$75.10—$100.00—————
03$49.60$51.90—$125.00—————
02$45.00$47.70—$130.0035.19%$2.20$3.6030
03$41.10$43.50—$135.0034.27%$2.85$4.30200
—————$145.0032.85%$4.50$6.4080
016$29.90$31.90—$150.0032.44%$5.80$7.70280
03$26.10$28.60—$155.0031.93%$7.10$9.30270
04$22.50$24.90—$160.0031.61%$8.90$11.00420
07$19.50$21.90—$165.0031.25%$10.90$12.9036050
09$17.00$19.10—$170.0030.84%$13.00$15.10590
021$13.80$16.6029.71%$175.00—$15.10$17.00760
018$12.10$14.1029.62%$180.00—$17.50$20.30380
030$10.00$12.0029.09%$185.00—$20.40$23.30300
049$8.20$10.2028.71%$190.00—$23.40$26.30120
026$6.50$8.5028.10%$195.00—$26.90$29.4030
048$5.20$6.9027.55%$200.00—$30.50$33.2040
0237$3.20$4.6026.85%$210.00—————
098$1.95$3.1026.60%$220.00—————

Forward $174.13. The 25-delta put carries +5.59 volatility points over the 25-delta call.

2027-09-17(312 days)ATM 29.98%±48.57skew +5.43
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
—————$130.0034.86%$3.50$5.4030
—————$135.0035.48%$4.40$7.3010
—————$150.0032.92%$8.00$10.4010
04$28.50$31.70—$155.0032.30%$9.40$12.0010
—————$160.0032.18%$11.40$13.9050
06$22.50$26.50—$165.0031.83%$13.30$16.0010
—————$175.0030.79%$17.50$20.5010
—————$180.00—$19.90$23.0010
010$13.50$15.7029.68%$185.00—————
046$11.50$13.8029.26%$190.00—————
065$9.80$12.0028.87%$195.00—$29.10$32.0010
044$8.20$10.4028.44%$200.00—————
01$3.90$5.8027.50%$220.00—————

Forward $175.22. The 25-delta put carries +5.43 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.