Options Skew Analytics

MCO option chain

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

Data as of 22 September 2026 (end of day)

2026-10-16(24 days)ATM 24.95%±30.13skew +2.55
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$77.90$83.20—$390.00—————
01$48.60$54.30—$420.00—————
—————$430.0028.16%$1.20$2.00361
—————$440.0027.51%$2.30$3.401,07710
—————$450.0026.96%$4.00$5.701,14910
01$16.80$20.40—$460.0026.27%$6.80$8.70440
4732$10.90$14.30—$470.0025.20%$10.40$12.80830
201,078$6.40$9.1024.11%$480.00—$15.90$18.50261
101,058$3.90$5.7024.41%$490.00—$21.60$26.901410
—————$500.00—$30.10$35.30270
—————$510.00—$39.60$45.0010
0191$0.65$1.0024.91%$520.00—————

Forward $471.00. The 25-delta put carries +2.55 volatility points over the 25-delta call.

2026-11-20(59 days)ATM 28.96%±55.01skew +2.59
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
02$168.10$174.70—$300.00—————
01$158.20$165.00—$310.00—————
03$100.30$104.90—$370.00—————
04$90.80$96.50—$380.00—————
01$54.00$59.50—$420.0031.41%$4.80$5.80460
—————$430.0030.70%$6.40$7.80641
011$39.10$43.50—$440.0030.12%$8.60$10.301130
035$30.80$36.60—$450.0030.03%$12.10$13.307332
071$24.70$29.90—$460.0028.46%$13.90$17.20240
029$20.80$24.00—$470.0028.26%$19.00$21.10250
339$17.80$19.7029.46%$480.00—$23.60$26.7070
012$12.00$14.5027.21%$490.00—$29.80$33.1070
2174$8.80$11.2027.03%$500.00—$35.80$40.9040
052$7.10$8.5027.53%$510.00—$43.70$49.5040
065$4.80$6.5027.26%$520.00—$48.90$57.5020
—————$530.00—$59.60$65.9020
131$2.00$3.3026.45%$540.00—————
—————$550.00—$79.20$84.40150

Forward $472.37. The 25-delta put carries +2.59 volatility points over the 25-delta call.

2027-01-15(115 days)ATM 26.79%±71.37skew +3.02
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
04$122.00$128.50—$350.00—————
09$94.00$101.00—$380.00—————
03$85.10$92.50—$390.00—————
03$76.30$83.60—$400.00—————
—————$410.0029.97%$7.00$8.50230
02$60.00$67.00—$420.0029.37%$8.70$10.60220
027$52.70$58.90—$430.0028.71%$10.90$12.80250
05$45.10$51.90—$440.0028.22%$13.30$15.90630
024$39.00$45.30—$450.0027.89%$16.50$19.40660
031$34.00$38.10—$460.0027.56%$20.40$23.20410
011$29.30$32.20—$470.0027.25%$24.70$27.70381
099$24.00$27.3026.79%$480.00—$29.60$32.80650
059$19.30$22.8026.29%$490.00—$34.70$38.50570
041$14.80$18.9025.64%$500.00—$41.20$45.30110
055$11.80$15.0025.21%$510.00—$48.00$52.9050
021$9.60$12.9025.66%$520.00—————
017$7.60$10.6025.69%$530.00—$62.80$69.0020
042$5.80$8.6025.57%$540.00—————
024$4.60$7.0025.70%$550.00—$80.60$86.0010
017$3.30$5.2026.94%$570.00—————
022$1.60$2.6027.01%$600.00—————

Forward $474.61. The 25-delta put carries +3.02 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.