Options Skew Analytics

SOXS options analytics

SOXS · ETF

Data as of 23 September 2026 (end of day)

Some metrics unavailable for this session

SOXS options are pricing a 30-day at-the-money volatility of 116.3%, a move of about ±33.3% over the next month. That is higher than 84% of the 203 sessions in its trailing year.

Its 25-delta puts carry 0.32 volatility points more than the calls, which is further than on all but 6% of the past year.

Longer-dated options carry more: 90-day volatility is 9% above 30-day.

Current readings

30-day ATM implied volatilityⓘ
116.30%

Prices a move of about ±33.3% over 30 days, or ±7.3% on a typical day.

Higher than 84% of the past year.

25-delta risk reversalⓘ
+0.32

Puts carry 0.32 volatility points more than calls the same distance from the money.

Higher than 94% of the past year.

25-delta butterflyⓘ
+1.07

The wings carry 1.07 volatility points more than at-the-money.

Term structure slopeⓘ
1.090

90-day volatility is 9% above 30-day.

Where 30-day implied volatility sits

Against 203 prior sessions (one-year window)

116.3% — 84th percentile
76.7%174.0%
IV percentile, 1 year
84%
IV rank, 1 year
41%
IV percentile, 2 years
84%
IV rank, 2 years
41%

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
$33.66
30-day implied forward
$34.08
60-day ATM IV
126.62%
90-day ATM IV
126.77%
180-day ATM IV
—
Expirations used
7
Total open interest
127,833
Put / call open interest
0.93

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 222 sessions

50%100%150%200%5 Sep20 Nov10 Feb14 May23 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-23116.30%+0.321.090$33.66
2026-09-22115.49%-2.851.133$32.42
2026-09-21120.91%-4.881.000$35.33
2026-09-18108.16%-6.491.114$41.49
2026-09-17110.81%-6.481.090$44.99
2026-09-16113.86%-0.871.089$50.11
2026-09-15108.71%-2.151.159$51.10
2026-09-14112.44%-4.44—$51.73
2026-09-11104.74%+1.491.166$44.14
2026-09-10119.03%+1.581.052$46.74
2026-09-09126.37%+4.231.005$43.24
2026-09-08116.47%+2.721.115$44.08
2026-09-04111.07%+0.301.100$46.34
2026-09-03108.54%+6.14—$51.60
2026-09-02120.32%-11.02—$51.83
2026-09-01112.81%+3.59—$52.22
2026-08-31115.29%+1.15—$49.02
2026-08-28117.68%-2.41—$49.82
2026-08-27121.58%-0.47—$45.35
2026-08-26123.07%+4.65—$48.09
2025-06-3094.19%-19.991.080$7.89
2025-06-2789.89%-17.611.125$7.88
2025-06-2685.51%-11.171.126$7.87
2025-06-2592.42%-6.791.103$8.04
2025-06-2489.83%-19.951.124$8.26
2025-06-2393.57%-23.071.122$9.37
2025-06-20102.45%-33.661.086$9.54
2025-06-1893.55%-28.151.130$9.35
2025-06-17100.03%-24.981.088$9.44
2025-06-1697.59%-23.811.091$9.23
2025-06-13103.10%-29.161.077$10.17
2025-06-1295.89%-23.751.105$9.45
2025-06-1197.23%-23.661.051$9.50
2025-06-1094.00%-15.391.100$9.40
2025-06-09100.35%-26.571.021$10.03
2025-06-0695.99%-20.191.059$10.81
2025-06-05100.20%-25.351.101$10.99
2025-06-0493.59%-17.461.100$10.87
2025-06-0384.93%-15.791.205$11.35
2025-06-0291.52%-23.081.122$12.37
2025-05-30100.65%-17.15—$12.96
2025-05-29106.38%-24.98—$12.21
2025-05-28111.29%-10.881.035$12.34
2025-05-27106.97%-21.881.036$12.14
2025-05-23114.93%-26.150.986$13.49
2025-05-22104.16%-21.411.102$12.89
2025-05-21108.18%-28.00—$12.54
2025-05-2099.53%-18.861.074$11.88
2025-05-19100.61%-12.311.068$11.82
2025-05-1698.48%-13.181.062$11.60
2025-05-15102.55%-13.51—$11.55
2025-05-14101.24%-8.821.053$11.34
2025-05-13100.55%-14.751.043$11.49
2025-05-1297.92%-13.831.062$12.54
2025-05-09109.72%-19.671.056$16.00
2025-05-08111.40%-17.150.978$16.50
2025-05-07117.62%-17.231.035$17.03
2025-05-06125.22%-21.821.002$17.95
2025-05-05111.46%-29.171.134$17.38
2025-05-02111.07%-27.701.031$17.03
2025-05-01115.63%-28.620.961$18.95
2025-04-30120.21%-26.911.060$18.86
2025-04-29118.19%-33.771.008$19.32
2025-04-28122.14%-20.400.995$18.72
2025-04-25121.58%-31.660.964$18.58
2025-04-24131.08%-36.040.957$19.08
2025-04-23129.30%-26.351.048$23.10
2025-04-22155.77%-51.380.914$26.09
2025-04-21146.80%-48.09—$27.66
2025-04-17———$26.28
2025-04-16167.27%-54.97—$25.81
2025-04-15145.40%-49.13—$23.09
2025-04-14159.34%-44.160.868$23.43
2025-04-11174.01%-53.51—$23.86
2025-04-10———$25.45
2025-04-09———$20.70
2025-04-08———$47.02
2025-04-07———$42.35
2025-04-04———$45.52
2025-04-03———$36.81
2025-04-02106.64%-22.84—$28.36
2025-04-01103.99%-20.65—$28.96
2025-03-31109.79%-17.50—$28.99
2025-03-28110.16%-23.96—$28.79
2025-03-27102.52%-20.53—$26.28
2025-03-2696.68%-19.92—$24.86
2025-03-2592.65%-22.06—$22.88
2025-03-2491.97%-17.301.004$22.75
2025-03-2192.93%-15.96—$24.91
2025-03-2097.28%-13.63—$24.07
2025-03-1999.21%-15.58—$23.55
2025-03-18102.62%-17.98—$23.94
2025-03-17100.06%-6.88—$23.22
2025-03-14108.22%-23.25—$24.40
2025-03-13———$26.81
2025-03-12120.90%-32.57—$26.44
2025-03-11———$28.19
2025-03-10———$27.17
2025-03-07116.89%-23.64—$23.90
2025-03-06———$26.12
2025-03-05113.63%-27.50—$23.28
2025-03-04———$24.87
2025-03-03———$25.26
2025-02-28———$22.86
2025-02-27———$24.02
2025-02-26101.56%-25.41—$20.37
2025-02-25107.41%-17.93—$21.48
2025-02-2498.68%-16.251.008$20.18
2025-02-2189.89%-17.56—$18.89
2025-02-2078.06%-7.411.220$17.31
2025-02-1981.15%-7.06—$17.44
2025-02-1890.77%-10.610.950$18.32
2025-02-1476.75%-12.971.131$19.29
2025-02-1386.28%-15.371.049$19.28
2025-02-1285.29%-13.861.076$20.03
2025-02-1189.01%-13.071.032$20.10
2025-02-1086.29%-10.761.073$20.13
2025-02-0788.91%-6.961.126$20.91
2025-02-0685.18%-15.161.075$20.00
2025-02-0589.56%-4.541.059$19.87

The chart covers every session in the archive, 222 in total. The table lists the most recent 120.

25-delta risk reversal

Last 222 sessions

-60.0-40.0-20.00.020.05 Sep20 Nov10 Feb14 May23 Sep

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

2d (2026-09-25) · 9d (2026-10-02) · 16d (2026-10-09)

100%105%110%115%120%125%2026-09-25 (2d) — 5Δ C — IV 111.89%2026-09-25 (2d) — 10Δ C — IV 105.94%2026-09-25 (2d) — 15Δ C — IV 105.17%2026-09-25 (2d) — 20Δ C — IV 104.07%2026-09-25 (2d) — 25Δ C — IV 104.75%2026-09-25 (2d) — 30Δ C — IV 106.03%2026-09-25 (2d) — 35Δ C — IV 106.69%2026-09-25 (2d) — 40Δ C — IV 107.12%2026-09-25 (2d) — 45Δ C — IV 108.20%2026-09-25 (2d) — ATM — IV 108.82%2026-09-25 (2d) — 45Δ P — IV 108.00%2026-09-25 (2d) — 40Δ P — IV 106.95%2026-09-25 (2d) — 35Δ P — IV 106.81%2026-09-25 (2d) — 30Δ P — IV 109.40%2026-09-25 (2d) — 25Δ P — IV 110.96%2026-09-25 (2d) — 20Δ P — IV 109.23%2026-09-25 (2d) — 15Δ P — IV 112.06%2026-09-25 (2d) — 10Δ P — IV 110.18%2026-09-25 (2d) — 5Δ P — IV 119.88%2d2026-10-02 (9d) — 5Δ C — IV 116.27%2026-10-02 (9d) — 10Δ C — IV 107.43%2026-10-02 (9d) — 15Δ C — IV 106.67%2026-10-02 (9d) — 20Δ C — IV 109.98%2026-10-02 (9d) — 25Δ C — IV 113.49%2026-10-02 (9d) — 30Δ C — IV 112.76%2026-10-02 (9d) — 35Δ C — IV 112.05%2026-10-02 (9d) — 40Δ C — IV 109.39%2026-10-02 (9d) — 45Δ C — IV 109.10%2026-10-02 (9d) — ATM — IV 108.30%2026-10-02 (9d) — 45Δ P — IV 103.67%2026-10-02 (9d) — 40Δ P — IV 109.93%2026-10-02 (9d) — 35Δ P — IV 110.61%2026-10-02 (9d) — 30Δ P — IV 101.49%2026-10-02 (9d) — 25Δ P — IV 106.48%2026-10-02 (9d) — 20Δ P — IV 114.54%2026-10-02 (9d) — 15Δ P — IV 110.46%2026-10-02 (9d) — 10Δ P — IV 111.40%9d2026-10-09 (16d) — 20Δ C — IV 107.21%2026-10-09 (16d) — 25Δ C — IV 108.07%2026-10-09 (16d) — 30Δ C — IV 108.50%2026-10-09 (16d) — 35Δ C — IV 105.92%2026-10-09 (16d) — 40Δ C — IV 108.27%2026-10-09 (16d) — 45Δ C — IV 106.32%2026-10-09 (16d) — ATM — IV 110.94%2026-10-09 (16d) — 45Δ P — IV 108.75%2026-10-09 (16d) — 40Δ P — IV 107.06%2026-10-09 (16d) — 35Δ P — IV 112.25%2026-10-09 (16d) — 30Δ P — IV 111.46%2026-10-09 (16d) — 25Δ P — IV 110.80%2026-10-09 (16d) — 20Δ P — IV 110.87%2026-10-09 (16d) — 15Δ P — IV 111.23%2026-10-09 (16d) — 10Δ P — IV 112.49%16d10Δ 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
Delta2d9d16d
5Δ call111.89%116.27%—
10Δ call105.94%107.43%—
15Δ call105.17%106.67%—
20Δ call104.07%109.98%107.21%
25Δ call104.75%113.49%108.07%
30Δ call106.03%112.76%108.50%
35Δ call106.69%112.05%105.92%
40Δ call107.12%109.39%108.27%
45Δ call108.20%109.10%106.32%
ATM108.82%108.30%110.94%
45Δ put108.00%103.67%108.75%
40Δ put106.95%109.93%107.06%
35Δ put106.81%110.61%112.25%
30Δ put109.40%101.49%111.46%
25Δ put110.96%106.48%110.80%
20Δ put109.23%114.54%110.87%
15Δ put112.06%110.46%111.23%
10Δ put110.18%111.40%112.49%
5Δ put119.88%——

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-09-252$33.79108.82%110.96%104.75%+6.21-0.9625
2026-10-029$33.86108.30%106.48%113.49%-7.01+1.6835
2026-10-0916$34.00110.94%110.80%108.07%+2.73-1.5017
2026-10-1623$34.03109.61%112.57%113.81%-1.23+3.5825
2026-10-2330$34.08116.30%117.54%117.21%+0.32+1.0718
2026-11-2058$34.10126.60%127.67%125.21%+2.46-0.1642
2027-01-15114$33.67126.84%127.58%127.61%-0.03+0.7553

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

7 listed expirations produced a usable reading

105%110%115%120%125%130%2026-09-25 — 2 days — at-the-money IV 108.82%2026-10-02 — 9 days — at-the-money IV 108.30%2026-10-09 — 16 days — at-the-money IV 110.94%2026-10-16 — 23 days — at-the-money IV 109.61%2026-10-23 — 30 days — at-the-money IV 116.30%2026-11-20 — 58 days — at-the-money IV 126.60%2027-01-15 — 114 days — at-the-money IV 126.84%7306090days 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
2026-09-252 days$33.79108.82%$33.9025
2026-10-029 days$33.86108.30%$34.3535
2026-10-0916 days$34.00110.94%$34.9317
2026-10-1623 days$34.03109.61%$35.3425
2026-10-2330 days$34.08116.30%$36.0218
2026-11-2058 days$34.10126.60%$38.7342
2027-01-15114 days$33.67126.84%$43.2953

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
116.30%
60 days
126.62%
90 days
126.77%
180 days
—

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 222 sessions

0.801.001.201.405 Sep5 Nov20 Feb4 Jun23 Sep

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.