Options Skew Analytics

SLV options analytics

SLV · ETF

Data as of 23 September 2026 (end of day)

SLV options are pricing a 30-day at-the-money volatility of 36.1%, a move of about ±10.4% over the next month. That is higher than 85% of the 223 sessions in its trailing year.

Its 25-delta calls carry 4.16 volatility points more than the puts, closer together than on 90% of the past year.

Longer-dated options carry more: 90-day volatility is 8% above 30-day.

Current readings

30-day ATM implied volatilityⓘ
36.14%

Prices a move of about ±10.4% over 30 days, or ±2.3% on a typical day.

Higher than 85% of the past year.

25-delta risk reversalⓘ
-4.16

Calls carry 4.16 volatility points more than puts the same distance from the money.

Higher than 10% of the past year.

25-delta butterflyⓘ
+0.99

The wings carry 0.99 volatility points more than at-the-money.

Term structure slopeⓘ
1.075

90-day volatility is 8% above 30-day.

Higher than 92% of the past year.

Where 30-day implied volatility sits

Against 223 prior sessions (one-year window)

36.1% — 85th percentile
23.1%45.1%
IV percentile, 1 year
85%
IV rank, 1 year
59%
IV percentile, 2 years
85%
IV rank, 2 years
59%

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
$58.16
30-day implied forward
$58.24
60-day ATM IV
38.29%
90-day ATM IV
38.86%
180-day ATM IV
39.96%
Expirations used
19
Total open interest
4,775,596
Put / call open interest
0.43

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 224 sessions

20%30%40%50%4 Sep25 Nov19 Feb8 May23 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2336.14%-4.161.075$58.16
2026-09-2238.46%-5.831.051$60.73
2026-09-2136.29%-3.541.103$59.63
2026-09-1837.03%-3.271.111$59.93
2026-09-1739.13%-3.321.094$58.97
2026-09-1642.11%-3.631.042$57.05
2026-09-1541.74%-4.111.055$57.53
2026-09-1442.83%-3.371.039$56.84
2026-09-1141.01%-2.931.077$58.12
2026-09-1044.44%-3.541.028$57.50
2026-09-0944.29%-4.601.058$60.72
2026-09-0842.91%-4.091.070$59.37
2026-09-0442.11%-4.911.088$59.82
2026-09-0345.15%-6.081.061$60.55
2026-09-0242.66%-3.001.068$59.07
2026-09-0141.72%-2.591.073$57.92
2026-08-3141.41%-3.781.090$60.13
2026-08-2842.12%-3.861.093$60.02
2026-08-2744.77%-5.941.078$62.77
2026-08-2644.49%-6.161.063$61.59
2026-08-2544.27%-6.271.074$62.32
2025-06-3026.22%-3.101.025$32.81
2025-06-2724.39%-2.531.056$32.62
2025-06-2625.30%-3.031.046$33.34
2025-06-2525.29%-2.741.035$33.01
2025-06-2424.22%-1.971.047$32.61
2025-06-2325.00%-2.671.051$32.96
2025-06-2024.82%-2.501.045$32.72
2025-06-1826.20%-3.131.043$33.27
2025-06-1728.47%-3.721.007$33.74
2025-06-1627.35%-3.201.022$33.03
2025-06-1327.63%-3.781.017$32.97
2025-06-1227.93%-4.031.016$33.06
2025-06-1127.25%-4.231.024$32.95
2025-06-1029.24%-3.890.994$33.23
2025-06-0930.78%-4.610.973$33.39
2025-06-0628.81%-4.160.999$32.69
2025-06-0530.68%-4.660.966$32.45
2025-06-0427.98%-3.351.004$31.34
2025-06-0328.63%-3.170.998$31.44
2025-06-0229.43%-3.240.985$31.59
2025-05-3024.58%-1.771.071$30.00
2025-05-2925.04%-2.061.063$30.30
2025-05-2824.52%-1.911.057$29.98
2025-05-2726.02%-1.881.041$30.23
2025-05-2327.24%-2.661.028$30.45
2025-05-2226.58%-2.371.028$30.03
2025-05-2128.42%-3.121.001$30.51
2025-05-2026.26%-2.161.028$30.13
2025-05-1924.44%-1.581.037$29.42
2025-05-1624.76%-1.411.033$29.30
2025-05-1525.98%-2.071.019$29.61
2025-05-1425.72%-1.261.022$29.25
2025-05-1325.60%-1.161.045$29.93
2025-05-1226.23%-1.691.035$29.63
2025-05-0926.48%-1.551.053$29.80
2025-05-0826.95%-1.541.030$29.46
2025-05-0727.51%-1.861.014$29.49
2025-05-0629.49%-2.600.996$30.22
2025-05-0526.94%-1.321.028$29.48
2025-05-0226.20%-0.911.038$29.12
2025-05-0127.18%-0.651.013$29.39
2025-04-3027.73%-0.471.010$29.60
2025-04-2928.27%-0.991.013$29.83
2025-04-2829.45%-1.280.995$30.19
2025-04-2528.17%-0.511.011$30.05
2025-04-2430.61%-1.851.010$30.56
2025-04-2332.29%-3.020.982$30.56
2025-04-2231.36%-2.200.999$29.50
2025-04-2131.63%-1.690.996$29.79
2025-04-1729.10%+0.131.013$29.55
2025-04-1632.43%-1.610.971$29.76
2025-04-1531.14%-0.350.995$29.41
2025-04-1434.20%-0.840.953$29.38
2025-04-1136.47%-1.790.944$29.19
2025-04-1034.08%-0.240.923$28.28
2025-04-0933.79%+0.800.927$28.06
2025-04-0834.46%+3.650.898$27.14
2025-04-0732.42%+1.081.009$27.14
2025-04-0435.38%+1.160.861$27.08
2025-04-0328.76%-3.630.914$28.89
2025-04-0226.48%-3.750.981$30.76
2025-04-0125.66%-2.440.981$30.63
2025-03-3127.48%-2.480.941$30.99
2025-03-2824.52%-1.401.026$31.00
2025-03-2725.68%-2.391.008$31.32
2025-03-2623.16%-0.941.063$30.53
2025-03-2524.33%-1.511.038$30.58
2025-03-2424.04%-1.561.037$29.96
2025-03-2124.62%-1.351.023$30.02
2025-03-2024.90%-0.681.027$30.50
2025-03-1925.49%-1.391.015$30.75
2025-03-1826.05%-1.571.033$30.85
2025-03-1727.32%-1.711.005$30.81
2025-03-1427.60%-2.101.002$30.71
2025-03-1327.68%-1.991.001$30.74
2025-03-1227.44%-1.630.999$30.22
2025-03-1127.99%-1.860.980$29.96
2025-03-1026.34%-1.080.997$29.11
2025-03-0724.62%-2.511.024$29.59
2025-03-0627.33%-1.660.998$29.69
2025-03-0527.36%-1.321.005$29.77
2025-03-0425.71%-0.991.008$29.00
2025-03-0325.78%-1.350.999$28.75
2025-02-2826.09%-1.230.912$28.31
2025-02-2724.68%-0.891.023$28.40
2025-02-2624.20%-0.091.031$28.94
2025-02-2524.87%-1.321.016$28.83
2025-02-2426.54%+0.521.047$29.44
2025-02-2127.25%-1.821.001$29.59
2025-02-2026.17%-1.841.033$29.95
2025-02-1927.27%-1.771.012$29.81
2025-02-1830.09%-4.300.926$29.91
2025-02-1426.90%-2.351.044$29.31
2025-02-1328.89%-3.471.016$29.46
2025-02-1227.95%-3.641.025$29.34
2025-02-1127.82%-2.171.021$29.00
2025-02-1027.64%-1.731.015$29.20
2025-02-0726.08%-1.131.058$29.03
2025-02-0626.21%-0.461.054$29.38

The chart covers every session in the archive, 224 in total. The table lists the most recent 120.

25-delta risk reversal

Last 224 sessions

-10.0-5.00.05.010.04 Sep25 Nov19 Feb8 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) · 5d (2026-09-28) · 7d (2026-09-30)

20%30%40%50%60%2026-09-25 (2d) — 5Δ C — IV 51.88%2026-09-25 (2d) — 10Δ C — IV 43.79%2026-09-25 (2d) — 15Δ C — IV 41.12%2026-09-25 (2d) — 20Δ C — IV 39.93%2026-09-25 (2d) — 25Δ C — IV 39.23%2026-09-25 (2d) — 30Δ C — IV 38.74%2026-09-25 (2d) — 35Δ C — IV 38.27%2026-09-25 (2d) — 40Δ C — IV 37.98%2026-09-25 (2d) — 45Δ C — IV 37.97%2026-09-25 (2d) — ATM — IV 37.99%2026-09-25 (2d) — 45Δ P — IV 37.97%2026-09-25 (2d) — 40Δ P — IV 37.79%2026-09-25 (2d) — 35Δ P — IV 37.66%2026-09-25 (2d) — 30Δ P — IV 37.95%2026-09-25 (2d) — 25Δ P — IV 38.48%2026-09-25 (2d) — 20Δ P — IV 38.72%2026-09-25 (2d) — 15Δ P — IV 39.06%2026-09-25 (2d) — 10Δ P — IV 39.89%2026-09-25 (2d) — 5Δ P — IV 40.46%2d2026-09-28 (5d) — 5Δ C — IV 42.09%2026-09-28 (5d) — 10Δ C — IV 36.97%2026-09-28 (5d) — 15Δ C — IV 34.27%2026-09-28 (5d) — 20Δ C — IV 33.22%2026-09-28 (5d) — 25Δ C — IV 32.47%2026-09-28 (5d) — 30Δ C — IV 31.90%2026-09-28 (5d) — 35Δ C — IV 31.48%2026-09-28 (5d) — 40Δ C — IV 31.16%2026-09-28 (5d) — 45Δ C — IV 31.03%2026-09-28 (5d) — ATM — IV 31.00%2026-09-28 (5d) — 45Δ P — IV 30.93%2026-09-28 (5d) — 40Δ P — IV 30.81%2026-09-28 (5d) — 35Δ P — IV 30.82%2026-09-28 (5d) — 30Δ P — IV 30.95%2026-09-28 (5d) — 25Δ P — IV 31.18%2026-09-28 (5d) — 20Δ P — IV 31.37%2026-09-28 (5d) — 15Δ P — IV 31.49%2026-09-28 (5d) — 10Δ P — IV 32.25%2026-09-28 (5d) — 5Δ P — IV 33.07%5d2026-09-30 (7d) — 5Δ C — IV 46.94%2026-09-30 (7d) — 10Δ C — IV 40.70%2026-09-30 (7d) — 15Δ C — IV 38.17%2026-09-30 (7d) — 20Δ C — IV 36.80%2026-09-30 (7d) — 25Δ C — IV 35.76%2026-09-30 (7d) — 30Δ C — IV 35.20%2026-09-30 (7d) — 35Δ C — IV 34.76%2026-09-30 (7d) — 40Δ C — IV 34.33%2026-09-30 (7d) — 45Δ C — IV 34.00%2026-09-30 (7d) — ATM — IV 33.61%2026-09-30 (7d) — 45Δ P — IV 33.54%2026-09-30 (7d) — 40Δ P — IV 33.61%2026-09-30 (7d) — 35Δ P — IV 33.51%2026-09-30 (7d) — 30Δ P — IV 33.57%2026-09-30 (7d) — 25Δ P — IV 33.79%2026-09-30 (7d) — 20Δ P — IV 34.02%2026-09-30 (7d) — 15Δ P — IV 34.50%2026-09-30 (7d) — 10Δ P — IV 35.70%2026-09-30 (7d) — 5Δ P — IV 38.15%7d10Δ 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
Delta2d5d7d
5Δ call51.88%42.09%46.94%
10Δ call43.79%36.97%40.70%
15Δ call41.12%34.27%38.17%
20Δ call39.93%33.22%36.80%
25Δ call39.23%32.47%35.76%
30Δ call38.74%31.90%35.20%
35Δ call38.27%31.48%34.76%
40Δ call37.98%31.16%34.33%
45Δ call37.97%31.03%34.00%
ATM37.99%31.00%33.61%
45Δ put37.97%30.93%33.54%
40Δ put37.79%30.81%33.61%
35Δ put37.66%30.82%33.51%
30Δ put37.95%30.95%33.57%
25Δ put38.48%31.18%33.79%
20Δ put38.72%31.37%34.02%
15Δ put39.06%31.49%34.50%
10Δ put39.89%32.25%35.70%
5Δ put40.46%33.07%38.15%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-09-252$58.1137.99%38.48%39.23%-0.75+0.8727
2026-09-285$58.1031.00%31.18%32.47%-1.29+0.8235
2026-09-307$58.1133.61%33.79%35.76%-1.97+1.1761
2026-10-029$58.1436.51%35.98%38.81%-2.83+0.8850
2026-10-0512$58.1333.98%33.22%36.35%-3.13+0.8030
2026-10-0714$58.1434.90%34.07%37.59%-3.52+0.9324
2026-10-0916$58.1735.47%34.74%38.14%-3.39+0.9748
2026-10-1623$58.2135.97%34.75%38.66%-3.91+0.7364
2026-10-2330$58.2436.14%35.05%39.21%-4.16+0.9949
2026-10-3037$58.2736.99%35.81%40.32%-4.51+1.0747
2026-11-2058$58.4038.23%36.64%42.12%-5.48+1.1560
2026-12-1886$58.5238.87%37.10%43.12%-6.03+1.2463
2026-12-3199$58.6038.82%36.99%43.09%-6.10+1.22113
2027-01-15114$58.7038.89%37.25%43.46%-6.21+1.47196
2027-03-19177$59.0339.98%37.98%44.91%-6.93+1.4782
2027-03-31189$59.1039.92%38.06%44.90%-6.85+1.5673
2027-04-16205$59.1840.40%38.33%45.55%-7.22+1.5437
2027-06-17267$59.5141.48%38.95%46.58%-7.63+1.29183
2027-09-17359$60.1042.22%39.67%47.89%-8.21+1.56106

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

19 listed expirations produced a usable reading

30%35%40%45%2026-09-25 — 2 days — at-the-money IV 37.99%2026-09-28 — 5 days — at-the-money IV 31.00%2026-09-30 — 7 days — at-the-money IV 33.61%2026-10-02 — 9 days — at-the-money IV 36.51%2026-10-05 — 12 days — at-the-money IV 33.98%2026-10-07 — 14 days — at-the-money IV 34.90%2026-10-09 — 16 days — at-the-money IV 35.47%2026-10-16 — 23 days — at-the-money IV 35.97%2026-10-23 — 30 days — at-the-money IV 36.14%2026-10-30 — 37 days — at-the-money IV 36.99%2026-11-20 — 58 days — at-the-money IV 38.23%2026-12-18 — 86 days — at-the-money IV 38.87%2026-12-31 — 99 days — at-the-money IV 38.82%2027-01-15 — 114 days — at-the-money IV 38.89%2027-03-19 — 177 days — at-the-money IV 39.98%2027-03-31 — 189 days — at-the-money IV 39.92%2027-04-16 — 205 days — at-the-money IV 40.40%2027-06-17 — 267 days — at-the-money IV 41.48%2027-09-17 — 359 days — at-the-money IV 42.22%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
2026-09-252 days$58.1137.99%$58.1327
2026-09-285 days$58.1031.00%$58.1435
2026-09-307 days$58.1133.61%$58.1761
2026-10-029 days$58.1436.51%$58.2350
2026-10-0512 days$58.1333.98%$58.2430
2026-10-0714 days$58.1434.90%$58.2824
2026-10-0916 days$58.1735.47%$58.3348
2026-10-1623 days$58.2135.97%$58.4464
2026-10-2330 days$58.2436.14%$58.5549
2026-10-3037 days$58.2736.99%$58.6847
2026-11-2058 days$58.4038.23%$59.0860
2026-12-1886 days$58.5238.87%$59.5763
2026-12-3199 days$58.6038.82%$59.81113
2027-01-15114 days$58.7038.89%$60.11196
2027-03-19177 days$59.0339.98%$61.3682
2027-03-31189 days$59.1039.92%$61.5973
2027-04-16205 days$59.1840.40%$61.9537
2027-06-17267 days$59.5141.48%$63.37183
2027-09-17359 days$60.1042.22%$65.61106

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
36.14%
60 days
38.29%
90 days
38.86%
180 days
39.96%

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 224 sessions

0.800.901.001.101.204 Sep25 Nov19 Feb8 May23 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.