Options Skew Analytics

XLE options analytics

XLE · ETF

Data as of 23 September 2026 (end of day)

XLE options are pricing a 30-day at-the-money volatility of 26.3%, a move of about ±7.5% over the next month. Its history here is 220 sessions, short of the 180 a percentile needs, so this reading is not yet ranked against its own past.

Its 25-delta puts carry 0.47 volatility points more than the calls.

Current readings

30-day ATM implied volatilityⓘ
26.28%

Prices a move of about ±7.5% over 30 days, or ±1.7% on a typical day.

25-delta risk reversalⓘ
+0.47

Puts carry 0.47 volatility points more than calls the same distance from the money.

25-delta butterflyⓘ
+0.17

The wings carry 0.17 volatility points more than at-the-money.

Term structure slopeⓘ
1.019

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

Where 30-day implied volatility sits

Against 80 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
$62.37
30-day implied forward
$62.67
60-day ATM IV
26.69%
90-day ATM IV
26.78%
180-day ATM IV
26.32%
Expirations used
19
Total open interest
2,397,731
Put / call open interest
1.12

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 220 sessions

10%20%30%40%50%2024-09-13 — 30-day ATM IV 21%2024-09-19 — 30-day ATM IV 19%2024-09-23 — 30-day ATM IV 19%2024-09-26 — 30-day ATM IV 22%2024-09-30 — 30-day ATM IV 22%2024-10-02 — 30-day ATM IV 25%2024-10-03 — 30-day ATM IV 27%2024-10-07 — 30-day ATM IV 26%2024-10-08 — 30-day ATM IV 26%2024-10-09 — 30-day ATM IV 26%2024-10-11 — 30-day ATM IV 25%2024-10-16 — 30-day ATM IV 24%2024-10-21 — 30-day ATM IV 23%2024-10-22 — 30-day ATM IV 23%2024-10-23 — 30-day ATM IV 23%2024-10-24 — 30-day ATM IV 23%2024-10-25 — 30-day ATM IV 24%2024-10-28 — 30-day ATM IV 23%2024-10-30 — 30-day ATM IV 24%2024-11-01 — 30-day ATM IV 23%2024-11-04 — 30-day ATM IV 25%2024-11-08 — 30-day ATM IV 21%2024-11-15 — 30-day ATM IV 20%2024-12-03 — 30-day ATM IV 19%2024-12-18 — 30-day ATM IV 20%2024-12-24 — 30-day ATM IV 20%2024-12-26 — 30-day ATM IV 19%2024-12-30 — 30-day ATM IV 21%2025-01-02 — 30-day ATM IV 23%2025-01-03 — 30-day ATM IV 20%2025-01-06 — 30-day ATM IV 21%2025-01-07 — 30-day ATM IV 22%2025-01-08 — 30-day ATM IV 20%2025-01-14 — 30-day ATM IV 21%2025-01-17 — 30-day ATM IV 18%2025-01-22 — 30-day ATM IV 19%2025-01-23 — 30-day ATM IV 18%2025-01-24 — 30-day ATM IV 19%2025-02-03 — 30-day ATM IV 22%2025-02-04 — 30-day ATM IV 20%2025-02-07 — 30-day ATM IV 19%2025-02-10 — 30-day ATM IV 20%2025-02-11 — 30-day ATM IV 19%2025-02-12 — 30-day ATM IV 21%2025-02-13 — 30-day ATM IV 19%2025-02-14 — 30-day ATM IV 19%2025-02-18 — 30-day ATM IV 20%2025-02-19 — 30-day ATM IV 19%2025-02-20 — 30-day ATM IV 19%2025-02-26 — 30-day ATM IV 24%2025-02-27 — 30-day ATM IV 24%2025-03-06 — 30-day ATM IV 28%2025-03-17 — 30-day ATM IV 24%2025-03-18 — 30-day ATM IV 24%2025-03-28 — 30-day ATM IV 22%2025-04-01 — 30-day ATM IV 22%2025-04-21 — 30-day ATM IV 40%2025-04-23 — 30-day ATM IV 33%2025-04-24 — 30-day ATM IV 29%2025-05-05 — 30-day ATM IV 31%2025-05-07 — 30-day ATM IV 28%2025-05-09 — 30-day ATM IV 26%2025-05-21 — 30-day ATM IV 27%2025-06-16 — 30-day ATM IV 23%2025-06-23 — 30-day ATM IV 24%2025-06-30 — 30-day ATM IV 22%2026-08-27 — 30-day ATM IV 24%2026-09-01 — 30-day ATM IV 27%2026-09-02 — 30-day ATM IV 25%2026-09-03 — 30-day ATM IV 25%2026-09-04 — 30-day ATM IV 24%2026-09-09 — 30-day ATM IV 28%2026-09-11 — 30-day ATM IV 26%2026-09-14 — 30-day ATM IV 27%2026-09-15 — 30-day ATM IV 27%2026-09-16 — 30-day ATM IV 28%2026-09-17 — 30-day ATM IV 26%2026-09-18 — 30-day ATM IV 27%2026-09-21 — 30-day ATM IV 27%2026-09-22 — 30-day ATM IV 26%2026-09-23 — 30-day ATM IV 26%13 Sep4 Nov7 Feb7 May23 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2326.28%+0.471.019$62.37
2026-09-2226.10%+0.611.037$61.78
2026-09-2126.68%+0.281.019$62.46
2026-09-1826.75%+0.941.034$64.31
2026-09-1726.14%+0.291.036$64.48
2026-09-1627.62%+1.161.000$64.03
2026-09-1527.48%+0.280.996$65.93
2026-09-1426.83%-0.410.995$64.53
2026-09-1126.24%+0.241.012$65.14
2026-09-10———$64.93
2026-09-0927.68%+1.150.979$65.31
2026-09-08———$64.77
2026-09-0424.15%-0.891.040$64.06
2026-09-0325.18%-1.631.025$64.62
2026-09-0224.93%+0.591.041$65.10
2026-09-0126.88%-0.490.991$64.77
2026-08-31———$63.96
2026-08-28———$62.68
2026-08-2724.27%+0.271.034$62.29
2025-06-3021.67%+1.591.055$84.81
2025-06-27———$85.30
2025-06-26———$85.75
2025-06-25———$84.54
2025-06-24———$84.91
2025-06-2324.23%-0.61—$86.03
2025-06-20———$88.98
2025-06-18———$88.08
2025-06-17———$88.66
2025-06-1623.11%+1.18—$87.84
2025-06-13———$88.10
2025-06-12———$86.59
2025-06-11———$86.29
2025-06-10———$85.06
2025-06-09———$83.57
2025-06-06———$83.41
2025-06-05———$81.87
2025-06-04———$81.95
2025-06-03———$83.58
2025-06-02———$82.60
2025-05-30———$81.53
2025-05-29———$82.26
2025-05-28———$81.65
2025-05-27———$82.70
2025-05-23———$81.99
2025-05-22———$81.73
2025-05-2127.28%+5.95—$82.05
2025-05-20———$83.59
2025-05-19———$84.37
2025-05-16———$85.48
2025-05-15———$85.61
2025-05-14———$85.25
2025-05-13———$85.77
2025-05-12———$84.58
2025-05-0926.00%+5.28—$82.43
2025-05-08———$81.61
2025-05-0728.49%+4.100.971$80.55
2025-05-06———$80.52
2025-05-0530.64%+4.21—$80.50
2025-05-02———$81.98
2025-05-01———$80.80
2025-04-30———$80.50
2025-04-29———$82.73
2025-04-28———$82.97
2025-04-25———$82.39
2025-04-2429.39%+7.610.957$82.54
2025-04-2332.67%+8.170.915$81.24
2025-04-22———$81.39
2025-04-2140.08%+13.520.861$79.37
2025-04-17———$81.50
2025-04-16———$79.70
2025-04-15———$79.05
2025-04-14———$79.17
2025-04-11———$78.89
2025-04-10———$76.98
2025-04-09———$82.36
2025-04-08———$76.44
2025-04-07———$78.25
2025-04-04———$78.76
2025-04-03———$86.74
2025-04-02———$94.13
2025-04-0122.37%+2.461.016$94.00
2025-03-31———$93.45
2025-03-2822.32%+5.130.937$92.43
2025-03-27———$92.87
2025-03-26———$93.78
2025-03-25———$93.23
2025-03-24———$92.85
2025-03-21———$92.52
2025-03-20———$93.17
2025-03-19———$92.83
2025-03-1823.85%+3.58—$91.34
2025-03-1724.47%+2.640.969$91.19
2025-03-14———$89.76
2025-03-13———$87.18
2025-03-12———$87.78
2025-03-11———$87.38
2025-03-10———$88.08
2025-03-07———$87.43
2025-03-0628.18%+4.370.879$85.96
2025-03-05———$85.70
2025-03-04———$86.97
2025-03-03———$87.82
2025-02-28———$91.00
2025-02-2724.36%+1.611.003$89.61
2025-02-2623.78%+5.540.968$89.13
2025-02-25———$89.64
2025-02-24———$90.95
2025-02-21———$90.93
2025-02-2019.36%+0.821.113$92.86
2025-02-1919.03%+0.821.094$92.02
2025-02-1819.58%+1.491.040$91.30
2025-02-1419.05%-0.521.013$90.07
2025-02-1319.16%+1.291.052$89.71
2025-02-1220.60%+1.061.027$89.04
2025-02-1118.80%+0.361.092$91.24
2025-02-1019.86%+2.301.038$90.51
2025-02-0719.29%+3.061.062$88.56
2025-02-06———$88.57
2025-02-05———$90.23
2025-02-0419.96%+0.831.018$90.04

The chart covers every session in the archive, 220 in total. The table lists the most recent 120.

25-delta risk reversal

Last 220 sessions

-10.00.010.020.02024-09-13 — 25-delta RR (volatility points) 2.02024-09-19 — 25-delta RR (volatility points) -0.02024-09-23 — 25-delta RR (volatility points) 2.52024-09-26 — 25-delta RR (volatility points) 1.62024-09-30 — 25-delta RR (volatility points) 2.62024-10-02 — 25-delta RR (volatility points) 1.42024-10-03 — 25-delta RR (volatility points) 1.32024-10-07 — 25-delta RR (volatility points) 0.82024-10-08 — 25-delta RR (volatility points) 0.32024-10-09 — 25-delta RR (volatility points) 1.82024-10-11 — 25-delta RR (volatility points) -0.22024-10-16 — 25-delta RR (volatility points) 1.12024-10-21 — 25-delta RR (volatility points) -0.32024-10-22 — 25-delta RR (volatility points) -1.62024-10-23 — 25-delta RR (volatility points) -1.52024-10-24 — 25-delta RR (volatility points) 0.22024-10-25 — 25-delta RR (volatility points) 0.72024-10-28 — 25-delta RR (volatility points) 0.62024-10-30 — 25-delta RR (volatility points) 2.22024-11-01 — 25-delta RR (volatility points) -1.42024-11-04 — 25-delta RR (volatility points) 1.82024-11-08 — 25-delta RR (volatility points) -0.82024-11-15 — 25-delta RR (volatility points) 1.42024-12-03 — 25-delta RR (volatility points) -1.42024-12-18 — 25-delta RR (volatility points) -5.52024-12-24 — 25-delta RR (volatility points) 2.52024-12-26 — 25-delta RR (volatility points) 1.32024-12-30 — 25-delta RR (volatility points) 0.02025-01-02 — 25-delta RR (volatility points) -0.52025-01-03 — 25-delta RR (volatility points) 0.32025-01-06 — 25-delta RR (volatility points) 1.52025-01-07 — 25-delta RR (volatility points) -1.62025-01-08 — 25-delta RR (volatility points) 2.42025-01-14 — 25-delta RR (volatility points) 3.42025-01-17 — 25-delta RR (volatility points) 1.82025-01-22 — 25-delta RR (volatility points) 0.52025-01-23 — 25-delta RR (volatility points) 0.62025-01-24 — 25-delta RR (volatility points) -1.02025-02-03 — 25-delta RR (volatility points) 1.52025-02-04 — 25-delta RR (volatility points) 0.82025-02-07 — 25-delta RR (volatility points) 3.12025-02-10 — 25-delta RR (volatility points) 2.32025-02-11 — 25-delta RR (volatility points) 0.42025-02-12 — 25-delta RR (volatility points) 1.12025-02-13 — 25-delta RR (volatility points) 1.32025-02-14 — 25-delta RR (volatility points) -0.52025-02-18 — 25-delta RR (volatility points) 1.52025-02-19 — 25-delta RR (volatility points) 0.82025-02-20 — 25-delta RR (volatility points) 0.82025-02-26 — 25-delta RR (volatility points) 5.52025-02-27 — 25-delta RR (volatility points) 1.62025-03-06 — 25-delta RR (volatility points) 4.42025-03-17 — 25-delta RR (volatility points) 2.62025-03-18 — 25-delta RR (volatility points) 3.62025-03-28 — 25-delta RR (volatility points) 5.12025-04-01 — 25-delta RR (volatility points) 2.52025-04-21 — 25-delta RR (volatility points) 13.52025-04-23 — 25-delta RR (volatility points) 8.22025-04-24 — 25-delta RR (volatility points) 7.62025-05-05 — 25-delta RR (volatility points) 4.22025-05-07 — 25-delta RR (volatility points) 4.12025-05-09 — 25-delta RR (volatility points) 5.32025-05-21 — 25-delta RR (volatility points) 5.92025-06-16 — 25-delta RR (volatility points) 1.22025-06-23 — 25-delta RR (volatility points) -0.62025-06-30 — 25-delta RR (volatility points) 1.62026-08-27 — 25-delta RR (volatility points) 0.32026-09-01 — 25-delta RR (volatility points) -0.52026-09-02 — 25-delta RR (volatility points) 0.62026-09-03 — 25-delta RR (volatility points) -1.62026-09-04 — 25-delta RR (volatility points) -0.92026-09-09 — 25-delta RR (volatility points) 1.22026-09-11 — 25-delta RR (volatility points) 0.22026-09-14 — 25-delta RR (volatility points) -0.42026-09-15 — 25-delta RR (volatility points) 0.32026-09-16 — 25-delta RR (volatility points) 1.22026-09-17 — 25-delta RR (volatility points) 0.32026-09-18 — 25-delta RR (volatility points) 0.92026-09-21 — 25-delta RR (volatility points) 0.32026-09-22 — 25-delta RR (volatility points) 0.62026-09-23 — 25-delta RR (volatility points) 0.513 Sep4 Nov7 Feb7 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%25%30%35%40%2026-09-25 (2d) — 5Δ C — IV 28.49%2026-09-25 (2d) — 10Δ C — IV 27.72%2026-09-25 (2d) — 15Δ C — IV 27.76%2026-09-25 (2d) — 20Δ C — IV 28.01%2026-09-25 (2d) — 25Δ C — IV 28.22%2026-09-25 (2d) — 30Δ C — IV 28.43%2026-09-25 (2d) — 35Δ C — IV 28.63%2026-09-25 (2d) — 40Δ C — IV 28.79%2026-09-25 (2d) — 45Δ C — IV 28.96%2026-09-25 (2d) — ATM — IV 29.15%2026-09-25 (2d) — 45Δ P — IV 29.43%2026-09-25 (2d) — 40Δ P — IV 29.77%2026-09-25 (2d) — 35Δ P — IV 30.12%2026-09-25 (2d) — 30Δ P — IV 30.47%2026-09-25 (2d) — 25Δ P — IV 30.90%2026-09-25 (2d) — 20Δ P — IV 31.55%2026-09-25 (2d) — 15Δ P — IV 32.51%2026-09-25 (2d) — 10Δ P — IV 33.99%2026-09-25 (2d) — 5Δ P — IV 35.22%2d2026-09-28 (5d) — 5Δ C — IV 23.70%2026-09-28 (5d) — 10Δ C — IV 23.07%2026-09-28 (5d) — 15Δ C — IV 22.86%2026-09-28 (5d) — 20Δ C — IV 22.83%2026-09-28 (5d) — 25Δ C — IV 22.90%2026-09-28 (5d) — 30Δ C — IV 23.00%2026-09-28 (5d) — 35Δ C — IV 23.10%2026-09-28 (5d) — 40Δ C — IV 23.18%2026-09-28 (5d) — 45Δ C — IV 23.25%2026-09-28 (5d) — ATM — IV 23.32%2026-09-28 (5d) — 45Δ P — IV 23.41%2026-09-28 (5d) — 40Δ P — IV 23.51%2026-09-28 (5d) — 35Δ P — IV 23.68%2026-09-28 (5d) — 30Δ P — IV 23.95%2026-09-28 (5d) — 25Δ P — IV 24.33%2026-09-28 (5d) — 20Δ P — IV 24.81%2026-09-28 (5d) — 15Δ P — IV 25.50%2026-09-28 (5d) — 10Δ P — IV 26.60%2026-09-28 (5d) — 5Δ P — IV 28.57%5d2026-09-30 (7d) — 5Δ C — IV 26.53%2026-09-30 (7d) — 10Δ C — IV 25.73%2026-09-30 (7d) — 15Δ C — IV 25.35%2026-09-30 (7d) — 20Δ C — IV 25.07%2026-09-30 (7d) — 25Δ C — IV 24.97%2026-09-30 (7d) — 30Δ C — IV 25.02%2026-09-30 (7d) — 35Δ C — IV 25.10%2026-09-30 (7d) — 40Δ C — IV 25.20%2026-09-30 (7d) — 45Δ C — IV 25.31%2026-09-30 (7d) — ATM — IV 25.47%2026-09-30 (7d) — 45Δ P — IV 25.65%2026-09-30 (7d) — 40Δ P — IV 25.83%2026-09-30 (7d) — 35Δ P — IV 26.02%2026-09-30 (7d) — 30Δ P — IV 26.24%2026-09-30 (7d) — 25Δ P — IV 26.53%2026-09-30 (7d) — 20Δ P — IV 26.98%2026-09-30 (7d) — 15Δ P — IV 27.67%2026-09-30 (7d) — 10Δ P — IV 28.97%2026-09-30 (7d) — 5Δ P — IV 31.35%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 call28.49%23.70%26.53%
10Δ call27.72%23.07%25.73%
15Δ call27.76%22.86%25.35%
20Δ call28.01%22.83%25.07%
25Δ call28.22%22.90%24.97%
30Δ call28.43%23.00%25.02%
35Δ call28.63%23.10%25.10%
40Δ call28.79%23.18%25.20%
45Δ call28.96%23.25%25.31%
ATM29.15%23.32%25.47%
45Δ put29.43%23.41%25.65%
40Δ put29.77%23.51%25.83%
35Δ put30.12%23.68%26.02%
30Δ put30.47%23.95%26.24%
25Δ put30.90%24.33%26.53%
20Δ put31.55%24.81%26.98%
15Δ put32.51%25.50%27.67%
10Δ put33.99%26.60%28.97%
5Δ put35.22%28.57%31.35%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-09-252$62.4629.15%30.90%28.22%+2.68+0.4013
2026-09-285$62.4623.32%24.33%22.90%+1.43+0.299
2026-09-307$62.4625.47%26.53%24.97%+1.56+0.2813
2026-10-029$62.5026.31%27.36%26.61%+0.76+0.6829
2026-10-0512$62.4824.64%25.99%25.62%+0.37+1.168
2026-10-0714$62.4725.39%25.79%26.43%-0.65+0.726
2026-10-0916$62.5526.08%26.46%26.24%+0.22+0.2731
2026-10-1623$62.6025.56%26.31%25.89%+0.42+0.5436
2026-10-2330$62.6726.28%26.68%26.21%+0.47+0.1732
2026-10-3037$62.6826.48%26.83%26.70%+0.13+0.2831
2026-11-2058$62.8326.67%27.05%27.12%-0.07+0.4131
2026-12-1886$63.0726.89%27.30%27.27%+0.03+0.3923
2026-12-3199$62.7826.56%26.86%26.85%+0.01+0.3016
2027-01-15114$62.8526.63%26.48%27.00%-0.52+0.1120
2027-03-19177$63.3126.33%26.21%26.52%-0.31+0.0331
2027-03-31189$63.2826.28%26.60%26.62%-0.02+0.3342
2027-06-17267$63.7425.94%26.05%26.16%-0.11+0.1623
2027-06-30280$63.7226.06%26.34%26.51%-0.17+0.3730
2027-09-17359$64.1325.74%26.06%25.85%+0.21+0.2232

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

22%24%26%28%30%2026-09-25 — 2 days — at-the-money IV 29.15%2026-09-28 — 5 days — at-the-money IV 23.32%2026-09-30 — 7 days — at-the-money IV 25.47%2026-10-02 — 9 days — at-the-money IV 26.31%2026-10-05 — 12 days — at-the-money IV 24.64%2026-10-07 — 14 days — at-the-money IV 25.39%2026-10-09 — 16 days — at-the-money IV 26.08%2026-10-16 — 23 days — at-the-money IV 25.56%2026-10-23 — 30 days — at-the-money IV 26.28%2026-10-30 — 37 days — at-the-money IV 26.48%2026-11-20 — 58 days — at-the-money IV 26.67%2026-12-18 — 86 days — at-the-money IV 26.89%2026-12-31 — 99 days — at-the-money IV 26.56%2027-01-15 — 114 days — at-the-money IV 26.63%2027-03-19 — 177 days — at-the-money IV 26.33%2027-03-31 — 189 days — at-the-money IV 26.28%2027-06-17 — 267 days — at-the-money IV 25.94%2027-06-30 — 280 days — at-the-money IV 26.06%2027-09-17 — 359 days — at-the-money IV 25.74%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$62.4629.15%$62.4813
2026-09-285 days$62.4623.32%$62.489
2026-09-307 days$62.4625.47%$62.5013
2026-10-029 days$62.5026.31%$62.5529
2026-10-0512 days$62.4824.64%$62.548
2026-10-0714 days$62.4725.39%$62.546
2026-10-0916 days$62.5526.08%$62.6431
2026-10-1623 days$62.6025.56%$62.7336
2026-10-2330 days$62.6726.28%$62.8532
2026-10-3037 days$62.6826.48%$62.9031
2026-11-2058 days$62.8326.67%$63.1831
2026-12-1886 days$63.0726.89%$63.6123
2026-12-3199 days$62.7826.56%$63.3816
2027-01-15114 days$62.8526.63%$63.5520
2027-03-19177 days$63.3126.33%$64.3831
2027-03-31189 days$63.2826.28%$64.4242
2027-06-17267 days$63.7425.94%$65.3323
2027-06-30280 days$63.7226.06%$65.4130
2027-09-17359 days$64.1325.74%$66.2532

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
26.28%
60 days
26.69%
90 days
26.78%
180 days
26.32%

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 220 sessions

0.800.901.001.101.202024-09-19 — 90-day over 30-day 1.092024-09-23 — 90-day over 30-day 1.142024-10-24 — 90-day over 30-day 0.972024-10-25 — 90-day over 30-day 0.952024-10-28 — 90-day over 30-day 0.912024-11-01 — 90-day over 30-day 0.962024-11-04 — 90-day over 30-day 0.932024-11-15 — 90-day over 30-day 1.062024-12-26 — 90-day over 30-day 1.162025-01-02 — 90-day over 30-day 1.002025-01-03 — 90-day over 30-day 1.052025-01-07 — 90-day over 30-day 1.092025-01-08 — 90-day over 30-day 1.092025-01-14 — 90-day over 30-day 1.132025-01-17 — 90-day over 30-day 1.142025-01-22 — 90-day over 30-day 1.172025-01-23 — 90-day over 30-day 1.142025-01-24 — 90-day over 30-day 1.112025-02-03 — 90-day over 30-day 0.932025-02-04 — 90-day over 30-day 1.022025-02-07 — 90-day over 30-day 1.062025-02-10 — 90-day over 30-day 1.042025-02-11 — 90-day over 30-day 1.092025-02-12 — 90-day over 30-day 1.032025-02-13 — 90-day over 30-day 1.052025-02-14 — 90-day over 30-day 1.012025-02-18 — 90-day over 30-day 1.042025-02-19 — 90-day over 30-day 1.092025-02-20 — 90-day over 30-day 1.112025-02-26 — 90-day over 30-day 0.972025-02-27 — 90-day over 30-day 1.002025-03-06 — 90-day over 30-day 0.882025-03-17 — 90-day over 30-day 0.972025-03-28 — 90-day over 30-day 0.942025-04-01 — 90-day over 30-day 1.022025-04-21 — 90-day over 30-day 0.862025-04-23 — 90-day over 30-day 0.922025-04-24 — 90-day over 30-day 0.962025-05-07 — 90-day over 30-day 0.972025-06-30 — 90-day over 30-day 1.052026-08-27 — 90-day over 30-day 1.032026-09-01 — 90-day over 30-day 0.992026-09-02 — 90-day over 30-day 1.042026-09-03 — 90-day over 30-day 1.032026-09-04 — 90-day over 30-day 1.042026-09-09 — 90-day over 30-day 0.982026-09-11 — 90-day over 30-day 1.012026-09-14 — 90-day over 30-day 1.002026-09-15 — 90-day over 30-day 1.002026-09-16 — 90-day over 30-day 1.002026-09-17 — 90-day over 30-day 1.042026-09-18 — 90-day over 30-day 1.032026-09-21 — 90-day over 30-day 1.022026-09-22 — 90-day over 30-day 1.042026-09-23 — 90-day over 30-day 1.0219 Sep17 Jan19 Feb1 Sep23 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.