Options Skew Analytics

RSP option chain

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

Data as of 10 November 2026 (end of day)

2027-01-15(66 days)ATM 14.54%±13.70skew +6.12
CallsStrikePuts
VolumeOpen intBidAskIV IVBidAskOpen intVolume
0122$33.00$36.70—$187.00—————
013$32.10$35.80—$188.00—————
02$31.10$34.50—$189.0025.50%$0.55$0.852,6030
43,605$31.30$32.50—$190.0025.64%$0.70$0.907,3754
04$30.00$32.30—$191.0025.34%$0.65$1.053740
022$28.20$32.10—$192.00—————
024$27.10$31.20—$193.0024.83%$0.75$1.202850
08$26.30$29.50—$194.00—————
0841$25.50$28.10—$195.0023.74%$0.90$1.15687328
02$24.40$27.70—$196.0023.34%$0.90$1.251720
020$23.50$27.00—$197.00—————
08$22.60$26.50—$198.00—————
020$21.60$24.40—$199.00—————
2424$22.20$23.20—$200.0021.81%$1.20$1.454,9054
01,569$16.90$18.70—$205.0019.70%$1.60$1.808,999300
7693$12.70$14.40—$210.0018.43%$2.20$2.759,0518
1111,000$9.70$10.20—$215.0016.29%$3.10$3.502,5144
573,840$6.20$6.50—$220.0014.98%$4.70$5.001,24618
208,496$3.50$3.8013.83%$225.00—$6.70$9.10760
131,565$1.45$1.8012.31%$230.00—$9.90$12.006989
352,119$0.50$0.7511.58%$235.00—————

Forward $221.51. The 25-delta put carries +6.12 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.