Options Skew Analytics

RUTW options analytics

RUTW · Index

Data as of 2 October 2026 (end of day)

RUTW options are pricing a 30-day at-the-money volatility of 18.1%, a move of about ±5.2% over the next month. Its history here is 11 sessions, short of the 180 a percentile needs, so this reading is not yet ranked against its own past.

Its 25-delta puts carry 3.48 volatility points more than the calls.

Current readings

30-day ATM implied volatilityⓘ
18.07%

Prices a move of about ±5.2% over 30 days, or ±1.1% on a typical day.

25-delta risk reversalⓘ
+3.48

Puts carry 3.48 volatility points more than calls the same distance from the money.

25-delta butterflyⓘ
+0.46

The wings carry 0.46 volatility points more than at-the-money.

Term structure slopeⓘ
1.033

90-day volatility is 3% above 30-day.

Where 30-day implied volatility sits

Against 10 prior sessions (one-year window)

Not enough history in this window to place the current reading.

IV percentile, 1 year
—
IV rank, 1 year
—
IV percentile, 2 years
—
IV rank, 2 years
—

Rank is the position between the lowest and highest readings in the window, so a single past extreme pins everything after it near one end. Percentile is the share of sessions below the current reading and is unaffected by how far that extreme reached. Both are withheld when the window holds fewer than 180 sessions.

Session detail

Underlying close
$2,832.90
30-day implied forward
$2,843.14
60-day ATM IV
18.30%
90-day ATM IV
18.66%
180-day ATM IV
19.03%
Expirations used
22
Total open interest
186,918
Put / call open interest
2.85

The forward is derived from put-call parity on the strikes nearest the money, not taken from the underlying close. It is what every moneyness and delta on this page is measured against.

30-day at-the-money implied volatility

Last 11 sessions

16%18%20%22%24%26%2024-10-03 — 30-day ATM IV 23%2024-10-04 — 30-day ATM IV 22%2024-10-07 — 30-day ATM IV 25%2026-09-23 — 30-day ATM IV 18%2026-09-24 — 30-day ATM IV 18%2026-09-25 — 30-day ATM IV 18%2026-09-28 — 30-day ATM IV 19%2026-09-29 — 30-day ATM IV 19%2026-09-30 — 30-day ATM IV 19%2026-10-01 — 30-day ATM IV 19%2026-10-02 — 30-day ATM IV 18%3 Oct23 Sep25 Sep30 Sep2 Oct
Show the underlying numbers (most recent 11)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-10-0218.07%+3.481.033$2,832.90
2026-10-0119.40%+3.860.985$2,806.63
2026-09-3019.03%+3.580.992$2,796.86
2026-09-2919.18%+3.710.990$2,807.92
2026-09-2818.82%+3.780.999$2,817.91
2026-09-2517.69%+3.271.039$2,837.55
2026-09-2418.31%+3.531.029$2,835.57
2026-09-2317.73%+3.691.035$2,838.66
2024-10-0724.86%+4.870.909$2,193.09
2024-10-0421.76%+3.741.008$2,212.80
2024-10-0323.09%+4.390.991$2,180.15

The chart covers every session in the archive, 11 in total. The table lists the most recent 11.

25-delta risk reversal

Last 11 sessions

-2.00.02.04.06.02024-10-03 — 25-delta RR (volatility points) 4.42024-10-04 — 25-delta RR (volatility points) 3.72024-10-07 — 25-delta RR (volatility points) 4.92026-09-23 — 25-delta RR (volatility points) 3.72026-09-24 — 25-delta RR (volatility points) 3.52026-09-25 — 25-delta RR (volatility points) 3.32026-09-28 — 25-delta RR (volatility points) 3.82026-09-29 — 25-delta RR (volatility points) 3.72026-09-30 — 25-delta RR (volatility points) 3.62026-10-01 — 25-delta RR (volatility points) 3.92026-10-02 — 25-delta RR (volatility points) 3.53 Oct23 Sep25 Sep30 Sep2 Oct

The dashed line marks zero, where the 25-delta put and call carry the same implied volatility.

Skew curve

Implied volatility by delta, front expirations

Implied volatility by delta

3d (2026-10-05) · 4d (2026-10-06) · 5d (2026-10-07)

8%10%12%14%16%18%2026-10-05 (3d) — 5Δ C — IV 10.15%2026-10-05 (3d) — 10Δ C — IV 9.93%2026-10-05 (3d) — 15Δ C — IV 9.95%2026-10-05 (3d) — 20Δ C — IV 10.04%2026-10-05 (3d) — 25Δ C — IV 10.14%2026-10-05 (3d) — 30Δ C — IV 10.25%2026-10-05 (3d) — 35Δ C — IV 10.28%2026-10-05 (3d) — 40Δ C — IV 10.39%2026-10-05 (3d) — 45Δ C — IV 10.53%2026-10-05 (3d) — ATM — IV 10.64%2026-10-05 (3d) — 45Δ P — IV 10.76%2026-10-05 (3d) — 40Δ P — IV 10.85%2026-10-05 (3d) — 35Δ P — IV 10.94%2026-10-05 (3d) — 30Δ P — IV 11.12%2026-10-05 (3d) — 25Δ P — IV 11.28%2026-10-05 (3d) — 20Δ P — IV 11.49%2026-10-05 (3d) — 15Δ P — IV 11.85%2026-10-05 (3d) — 10Δ P — IV 12.33%2026-10-05 (3d) — 5Δ P — IV 13.30%3d2026-10-06 (4d) — 5Δ C — IV 11.64%2026-10-06 (4d) — 10Δ C — IV 11.59%2026-10-06 (4d) — 15Δ C — IV 11.66%2026-10-06 (4d) — 20Δ C — IV 11.70%2026-10-06 (4d) — 25Δ C — IV 11.83%2026-10-06 (4d) — 30Δ C — IV 11.92%2026-10-06 (4d) — 35Δ C — IV 12.05%2026-10-06 (4d) — 40Δ C — IV 12.19%2026-10-06 (4d) — 45Δ C — IV 12.30%2026-10-06 (4d) — ATM — IV 12.44%2026-10-06 (4d) — 45Δ P — IV 12.57%2026-10-06 (4d) — 40Δ P — IV 12.69%2026-10-06 (4d) — 35Δ P — IV 12.82%2026-10-06 (4d) — 30Δ P — IV 13.04%2026-10-06 (4d) — 25Δ P — IV 13.23%2026-10-06 (4d) — 20Δ P — IV 13.52%2026-10-06 (4d) — 15Δ P — IV 13.91%2026-10-06 (4d) — 10Δ P — IV 14.51%2026-10-06 (4d) — 5Δ P — IV 15.70%4d2026-10-07 (5d) — 5Δ C — IV 12.61%2026-10-07 (5d) — 10Δ C — IV 12.55%2026-10-07 (5d) — 15Δ C — IV 12.56%2026-10-07 (5d) — 20Δ C — IV 12.70%2026-10-07 (5d) — 25Δ C — IV 12.81%2026-10-07 (5d) — 30Δ C — IV 12.95%2026-10-07 (5d) — 35Δ C — IV 13.05%2026-10-07 (5d) — 40Δ C — IV 13.22%2026-10-07 (5d) — 45Δ C — IV 13.37%2026-10-07 (5d) — ATM — IV 13.53%2026-10-07 (5d) — 45Δ P — IV 13.69%2026-10-07 (5d) — 40Δ P — IV 13.83%2026-10-07 (5d) — 35Δ P — IV 14.02%2026-10-07 (5d) — 30Δ P — IV 14.20%2026-10-07 (5d) — 25Δ P — IV 14.46%2026-10-07 (5d) — 20Δ P — IV 14.79%2026-10-07 (5d) — 15Δ P — IV 15.22%2026-10-07 (5d) — 10Δ P — IV 15.92%2026-10-07 (5d) — 5Δ P — IV 17.37%5d10Δ C25Δ CATM25Δ P10Δ Pout-of-the-money calls ← delta → out-of-the-money puts

The axis is call delta. Readings to the right of the dashed centre line are taken from the out-of-the-money put at that strike, which is the contract whose quote the volatility was solved from. Points are only plotted where surviving quotes bracket the delta on both sides; nothing is extrapolated past the last traded strike.

Show the underlying numbers
Delta3d4d5d
5Δ call10.15%11.64%12.61%
10Δ call9.93%11.59%12.55%
15Δ call9.95%11.66%12.56%
20Δ call10.04%11.70%12.70%
25Δ call10.14%11.83%12.81%
30Δ call10.25%11.92%12.95%
35Δ call10.28%12.05%13.05%
40Δ call10.39%12.19%13.22%
45Δ call10.53%12.30%13.37%
ATM10.64%12.44%13.53%
45Δ put10.76%12.57%13.69%
40Δ put10.85%12.69%13.83%
35Δ put10.94%12.82%14.02%
30Δ put11.12%13.04%14.20%
25Δ put11.28%13.23%14.46%
20Δ put11.49%13.52%14.79%
15Δ put11.85%13.91%15.22%
10Δ put12.33%14.51%15.92%
5Δ put13.30%15.70%17.37%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-10-053$2,835.2510.64%11.28%10.14%+1.15+0.0724
2026-10-064$2,835.4012.44%13.23%11.83%+1.40+0.0934
2026-10-075$2,835.7013.53%14.46%12.81%+1.65+0.1048
2026-10-086$2,836.0514.28%15.33%13.46%+1.86+0.1259
2026-10-097$2,837.1014.98%16.24%13.99%+2.25+0.1473
2026-10-1210$2,837.0514.23%15.51%13.23%+2.27+0.1477
2026-10-1311$2,837.3514.79%16.15%13.74%+2.41+0.1676
2026-10-1412$2,837.6415.93%17.43%14.84%+2.59+0.2079
2026-10-1513$2,837.7916.35%17.91%15.20%+2.71+0.2075
2026-10-1614$2,838.7016.65%18.35%15.47%+2.88+0.25141
2026-10-1917$2,838.6016.02%17.71%14.85%+2.86+0.27103
2026-10-2321$2,840.7016.92%18.89%15.68%+3.21+0.36153
2026-10-3028$2,842.6917.87%20.01%16.61%+3.40+0.43173
2026-11-0635$2,844.2718.46%20.78%17.16%+3.62+0.52146
2026-11-1342$2,846.0118.69%21.09%17.40%+3.69+0.5578
2026-11-2049$2,847.1618.67%21.16%17.41%+3.74+0.62154
2026-11-3059$2,848.7918.29%20.79%16.99%+3.80+0.60119
2026-12-3190$2,856.3618.66%21.36%17.35%+4.01+0.69111
2027-01-29119$2,866.4918.74%21.47%17.41%+4.06+0.7081
2027-02-26147$2,873.8418.87%21.63%17.50%+4.13+0.7047
2027-03-31180$2,880.4119.03%21.78%17.66%+4.12+0.7071
2027-06-30271$2,907.0719.60%22.41%18.28%+4.13+0.7480

Each curve above is one expiration. The vertical position is implied volatility; the horizontal position is the delta of the contract it was read from. For US equities the curve normally slopes upward to the right, meaning out-of-the-money puts carry higher implied volatility than equidistant calls.

The 25-delta risk reversal summarises that slope as a single number: the 25-delta put volatility minus the 25-delta call volatility. The butterfly summarises the curvature: the average of the two wings minus the at-the-money reading.

Term structure

At-the-money implied volatility by expiration

At-the-money implied volatility by expiration

22 listed expirations produced a usable reading

5%10%15%20%25%2026-10-05 — 3 days — at-the-money IV 10.64%2026-10-06 — 4 days — at-the-money IV 12.44%2026-10-07 — 5 days — at-the-money IV 13.53%2026-10-08 — 6 days — at-the-money IV 14.28%2026-10-09 — 7 days — at-the-money IV 14.98%2026-10-12 — 10 days — at-the-money IV 14.23%2026-10-13 — 11 days — at-the-money IV 14.79%2026-10-14 — 12 days — at-the-money IV 15.93%2026-10-15 — 13 days — at-the-money IV 16.35%2026-10-16 — 14 days — at-the-money IV 16.65%2026-10-19 — 17 days — at-the-money IV 16.02%2026-10-23 — 21 days — at-the-money IV 16.92%2026-10-30 — 28 days — at-the-money IV 17.87%2026-11-06 — 35 days — at-the-money IV 18.46%2026-11-13 — 42 days — at-the-money IV 18.69%2026-11-20 — 49 days — at-the-money IV 18.67%2026-11-30 — 59 days — at-the-money IV 18.29%2026-12-31 — 90 days — at-the-money IV 18.66%2027-01-29 — 119 days — at-the-money IV 18.74%2027-02-26 — 147 days — at-the-money IV 18.87%2027-03-31 — 180 days — at-the-money IV 19.03%2027-06-30 — 271 days — at-the-money IV 19.60%7306090180days to expiration

The horizontal axis is the square root of days to expiration, which is the scale volatility lives on. A curve that is flat in variance terms plots as a straight line here rather than bending sharply through the front week.

Show the underlying numbers
ExpirationDaysForwardATM IVATM strikeQuotes used
2026-10-053 days$2,835.2510.64%$2,835.3824
2026-10-064 days$2,835.4012.44%$2,835.6434
2026-10-075 days$2,835.7013.53%$2,836.0648
2026-10-086 days$2,836.0514.28%$2,836.5359
2026-10-097 days$2,837.1014.98%$2,837.7173
2026-10-1210 days$2,837.0514.23%$2,837.8477
2026-10-1311 days$2,837.3514.79%$2,838.2976
2026-10-1412 days$2,837.6415.93%$2,838.8279
2026-10-1513 days$2,837.7916.35%$2,839.1475
2026-10-1614 days$2,838.7016.65%$2,840.21141
2026-10-1917 days$2,838.6016.02%$2,840.29103
2026-10-2321 days$2,840.7016.92%$2,843.04153
2026-10-3028 days$2,842.6917.87%$2,846.18173
2026-11-0635 days$2,844.2718.46%$2,848.92146
2026-11-1342 days$2,846.0118.69%$2,851.7378
2026-11-2049 days$2,847.1618.67%$2,853.82154
2026-11-3059 days$2,848.7918.29%$2,856.50119
2026-12-3190 days$2,856.3618.66%$2,868.66111
2027-01-29119 days$2,866.4918.74%$2,882.9581
2027-02-26147 days$2,873.8418.87%$2,894.5247
2027-03-31180 days$2,880.4119.03%$2,906.2471
2027-06-30271 days$2,907.0719.60%$2,948.8480

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
18.07%
60 days
18.30%
90 days
18.66%
180 days
19.03%

Interpolation is linear in total variance, not in volatility. Interpolating volatility directly implies a forward variance that can be negative between two expirations. A tenor beyond the longest listed expiration is reported as unavailable rather than extrapolated.

Term structure slope

Last 11 sessions

0.850.900.951.001.052024-10-03 — 90-day over 30-day 0.992024-10-04 — 90-day over 30-day 1.012024-10-07 — 90-day over 30-day 0.912026-09-23 — 90-day over 30-day 1.032026-09-24 — 90-day over 30-day 1.032026-09-25 — 90-day over 30-day 1.042026-09-28 — 90-day over 30-day 1.002026-09-29 — 90-day over 30-day 0.992026-09-30 — 90-day over 30-day 0.992026-10-01 — 90-day over 30-day 0.992026-10-02 — 90-day over 30-day 1.033 Oct23 Sep25 Sep30 Sep2 Oct

The dashed line marks 1.00, where the 90-day and 30-day at-the-money volatilities are equal. Above it the longer tenor carries the higher volatility.

The term structure is the at-the-money implied volatility of each listed expiration, plotted against how far away that expiration is. Its usual shape for a calm underlying slopes gently upward, because a longer horizon admits more uncertainty.

It inverts when the market prices a dated event: an expiration that captures a scheduled announcement carries the variance of that event on top of ordinary trading, so a shorter contract can print a higher volatility than a longer one.