Options Skew Analytics

VTI options analytics

VTI · ETF

Data as of 9 November 2026 (end of day)

VTI options are pricing a 30-day at-the-money volatility of 15.7%, a move of about ±4.5% over the next month. Its history here is 315 sessions, short of the 180 a percentile needs, so this reading is not yet ranked against its own past.

Its 25-delta puts carry 5.35 volatility points more than the calls.

Current readings

30-day ATM implied volatilityⓘ
15.68%

Prices a move of about ±4.5% over 30 days, or ±1.0% on a typical day.

25-delta risk reversalⓘ
+5.35

Puts carry 5.35 volatility points more than calls the same distance from the money.

25-delta butterflyⓘ
+1.48

The wings carry 1.48 volatility points more than at-the-money.

Term structure slopeⓘ
1.025

90-day volatility is 2% above 30-day.

Where 30-day implied volatility sits

Against 165 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
63%
IV rank, 2 years
18%

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
$370.90
30-day implied forward
$372.18
60-day ATM IV
15.98%
90-day ATM IV
16.08%
180-day ATM IV
16.68%
Expirations used
5
Total open interest
25,127
Put / call open interest
0.40

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 315 sessions

0%10%20%30%40%50%6 Sep27 Dec11 Apr25 Aug9 Nov
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-11-0915.68%+5.351.025$370.90
2026-11-0619.33%+8.730.921$361.93
2026-11-0519.94%+8.550.886$360.52
2026-11-0413.99%+3.55—$376.92
2026-11-0316.95%+6.140.934$371.21
2026-11-0216.99%+7.14—$370.00
2026-10-3016.57%+7.170.982$371.57
2026-10-2913.82%+4.981.041$378.24
2026-10-2814.03%+5.23—$379.17
2026-10-2714.65%+3.711.001$377.92
2026-10-2614.73%+5.341.008$375.59
2026-10-2315.14%+5.901.022$373.01
2026-10-2215.27%+5.770.972$374.90
2026-10-2113.13%+4.231.071$379.15
2026-10-20———$377.09
2026-10-19———$375.54
2026-10-16———$374.07
2026-10-15———$378.42
2026-10-14———$376.88
2026-10-13———$381.32
2026-10-09———$381.94
2026-10-08———$379.56
2026-10-07———$381.03
2026-10-06———$382.54
2026-10-0513.24%+3.201.069$380.60
2026-10-0213.12%+3.911.071$377.99
2026-10-0113.85%+4.701.064$375.18
2026-09-3013.51%+4.091.055$374.24
2026-09-2913.41%+4.281.064$375.26
2026-09-2813.55%+3.701.049$375.84
2026-09-2512.75%+3.371.113$379.77
2026-09-2413.11%+3.891.098$378.08
2026-09-2312.71%+3.871.101$378.23
2026-09-2211.83%+2.771.158$381.27
2026-09-2112.31%+2.661.127$381.10
2026-09-1812.12%+4.121.161$375.43
2026-09-1712.45%+4.471.133$375.34
2026-09-1614.97%+5.32—$371.26
2026-09-15———$372.84
2026-09-14———$374.68
2026-09-11———$376.31
2026-09-10———$373.24
2026-09-0913.52%+6.041.047$375.56
2026-09-0812.59%+3.401.090$377.60
2026-09-04———$379.73
2026-09-03———$380.93
2026-09-0212.42%+4.421.091$376.88
2026-09-01———$375.17
2026-08-3112.42%+3.291.091$378.15
2026-08-28———$379.36
2026-08-2711.77%+3.641.175$380.63
2025-09-2913.25%+4.421.070$327.10
2025-09-2612.83%+4.261.107$327.18
2025-09-2513.81%+5.001.058$325.14
2025-09-2414.38%+5.611.049$326.89
2025-09-2313.84%+4.291.093$328.09
2025-09-2213.27%+4.451.081$329.86
2025-09-1912.60%+4.441.125$328.44
2025-09-1813.28%+3.551.061$327.21
2025-09-17———$325.16
2025-09-16———$325.45
2025-09-15———$325.89
2025-09-1211.88%+4.281.127$324.31
2025-09-1112.17%+4.441.069$324.78
2025-09-1013.13%+5.741.033$321.80
2025-09-0913.19%+5.571.040$320.98
2025-09-0812.61%+5.091.095$320.57
2025-09-0512.86%+5.621.080$319.55
2025-09-0412.86%+5.361.059$320.14
2025-09-0313.43%+6.331.035$317.33
2025-09-0213.48%+7.231.066$315.99
2025-08-2912.44%+5.731.077$318.20
2025-08-2811.83%+5.151.119$320.10
2025-08-2712.02%+3.871.116$318.94
2025-08-2611.85%+4.571.146$318.09
2025-08-2511.99%+4.261.137$316.65
2025-08-2211.46%+4.161.145$318.18
2025-08-2113.93%+5.181.040$312.76
2025-08-2012.83%+4.931.105$313.84
2025-08-19———$314.67
2025-08-1811.82%+4.251.151$316.59
2025-08-15———$316.47
2025-08-1411.07%+4.401.203$317.19
2025-08-13———$317.66
2025-08-1211.99%+4.151.162$316.13
2025-08-11———$312.31
2025-08-08———$313.03
2025-08-07———$311.07
2025-08-0613.67%+5.471.077$311.25
2025-08-0514.49%+6.121.053$309.16
2025-08-0413.39%+6.561.099$310.53
2025-08-01———$305.74
2025-07-31———$310.89
2025-07-30———$312.25
2025-07-29———$312.61
2025-07-2812.44%+4.421.127$313.60
2025-07-2512.65%+3.961.076$313.69
2025-07-24———$312.30
2025-07-2312.65%+4.841.084$312.41
2025-07-22———$309.80
2025-07-2114.68%+5.801.009$309.44
2025-07-1813.72%+4.441.090$309.09
2025-07-1714.64%+3.551.018$309.26
2025-07-1614.39%+4.401.061$307.26
2025-07-15———$306.10
2025-07-14———$307.72
2025-07-11———$307.02
2025-07-10———$308.32
2025-07-09———$307.50
2025-07-08———$305.58
2025-07-07———$305.60
2025-07-0313.89%+4.201.076$308.03
2025-07-02———$305.51
2025-07-01———$303.93
2025-06-3014.18%+4.341.064$303.93
2025-06-27———$303.31
2025-06-26———$301.94
2025-06-25———$299.36
2025-06-24———$299.71
2025-06-2315.48%+6.661.070$296.25

The chart covers every session in the archive, 315 in total. The table lists the most recent 120.

25-delta risk reversal

Last 315 sessions

-5.00.05.010.015.020.06 Sep27 Dec11 Apr25 Aug9 Nov

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

11d (2026-11-20) · 39d (2026-12-18) · 67d (2027-01-15)

10%15%20%25%30%35%2026-11-20 (11d) — 10Δ C — IV 13.87%2026-11-20 (11d) — 15Δ C — IV 14.36%2026-11-20 (11d) — 20Δ C — IV 14.78%2026-11-20 (11d) — 25Δ C — IV 15.15%2026-11-20 (11d) — 30Δ C — IV 15.49%2026-11-20 (11d) — 35Δ C — IV 15.82%2026-11-20 (11d) — 40Δ C — IV 16.14%2026-11-20 (11d) — 45Δ C — IV 16.44%2026-11-20 (11d) — ATM — IV 16.72%2026-11-20 (11d) — 45Δ P — IV 17.05%2026-11-20 (11d) — 40Δ P — IV 17.48%2026-11-20 (11d) — 35Δ P — IV 18.15%2026-11-20 (11d) — 30Δ P — IV 19.00%2026-11-20 (11d) — 25Δ P — IV 19.85%2026-11-20 (11d) — 20Δ P — IV 20.73%2026-11-20 (11d) — 15Δ P — IV 22.25%2026-11-20 (11d) — 10Δ P — IV 24.61%2026-11-20 (11d) — 5Δ P — IV 30.38%11d2026-12-18 (39d) — 10Δ C — IV 13.14%2026-12-18 (39d) — 15Δ C — IV 13.52%2026-12-18 (39d) — 20Δ C — IV 13.94%2026-12-18 (39d) — 25Δ C — IV 14.40%2026-12-18 (39d) — 30Δ C — IV 14.95%2026-12-18 (39d) — 35Δ C — IV 15.38%2026-12-18 (39d) — 40Δ C — IV 15.60%2026-12-18 (39d) — 45Δ C — IV 15.71%2026-12-18 (39d) — ATM — IV 15.54%2026-12-18 (39d) — 45Δ P — IV 15.34%2026-12-18 (39d) — 40Δ P — IV 15.73%2026-12-18 (39d) — 35Δ P — IV 16.79%2026-12-18 (39d) — 30Δ P — IV 18.00%2026-12-18 (39d) — 25Δ P — IV 19.83%2026-12-18 (39d) — 20Δ P — IV 20.85%2026-12-18 (39d) — 15Δ P — IV 22.79%2026-12-18 (39d) — 10Δ P — IV 26.23%2026-12-18 (39d) — 5Δ P — IV 31.86%39d2027-01-15 (67d) — 10Δ C — IV 12.53%2027-01-15 (67d) — 15Δ C — IV 12.81%2027-01-15 (67d) — 20Δ C — IV 13.16%2027-01-15 (67d) — 25Δ C — IV 13.48%2027-01-15 (67d) — 30Δ C — IV 13.85%2027-01-15 (67d) — 35Δ C — IV 14.32%2027-01-15 (67d) — 40Δ C — IV 14.89%2027-01-15 (67d) — 45Δ C — IV 15.63%2027-01-15 (67d) — ATM — IV 16.06%2027-01-15 (67d) — 45Δ P — IV 16.28%2027-01-15 (67d) — 40Δ P — IV 17.64%2027-01-15 (67d) — 35Δ P — IV 18.92%2027-01-15 (67d) — 30Δ P — IV 19.99%2027-01-15 (67d) — 25Δ P — IV 22.01%2027-01-15 (67d) — 20Δ P — IV 22.02%2027-01-15 (67d) — 15Δ P — IV 24.44%2027-01-15 (67d) — 10Δ P — IV 27.49%67d10Δ 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
Delta11d39d67d
10Δ call13.87%13.14%12.53%
15Δ call14.36%13.52%12.81%
20Δ call14.78%13.94%13.16%
25Δ call15.15%14.40%13.48%
30Δ call15.49%14.95%13.85%
35Δ call15.82%15.38%14.32%
40Δ call16.14%15.60%14.89%
45Δ call16.44%15.71%15.63%
ATM16.72%15.54%16.06%
45Δ put17.05%15.34%16.28%
40Δ put17.48%15.73%17.64%
35Δ put18.15%16.79%18.92%
30Δ put19.00%18.00%19.99%
25Δ put19.85%19.83%22.01%
20Δ put20.73%20.85%22.02%
15Δ put22.25%22.79%24.44%
10Δ put24.61%26.23%27.49%
5Δ put30.38%31.86%—

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-11-2011$372.1516.72%19.85%15.15%+4.70+0.779
2026-12-1839$372.1915.54%19.83%14.40%+5.43+1.5715
2027-01-1567$372.6816.06%22.01%13.48%+8.53+1.6815
2027-03-19130$375.2016.09%21.60%14.01%+7.59+1.7217
2027-06-17220$377.6416.95%21.77%14.27%+7.50+1.0721

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

5 listed expirations produced a usable reading

15%16%16%17%17%18%2026-11-20 — 11 days — at-the-money IV 16.72%2026-12-18 — 39 days — at-the-money IV 15.54%2027-01-15 — 67 days — at-the-money IV 16.06%2027-03-19 — 130 days — at-the-money IV 16.09%2027-06-17 — 220 days — at-the-money IV 16.95%306090180days 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
2026-11-2011 days$372.1516.72%$372.319
2026-12-1839 days$372.1915.54%$372.6715
2027-01-1567 days$372.6816.06%$373.5715
2027-03-19130 days$375.2016.09%$376.9417
2027-06-17220 days$377.6416.95%$380.9321

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
15.68%
60 days
15.98%
90 days
16.08%
180 days
16.68%

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 315 sessions

0.600.801.001.201.406 Sep23 Dec7 Apr20 Aug9 Nov

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.