Options Skew Analytics

KRE options analytics

KRE · ETF

Data as of 22 September 2026 (end of day)

KRE options are pricing a 30-day at-the-money volatility of 22.5%, a move of about ±6.4% over the next month. Its history here is 225 sessions, short of the 180 a percentile needs, so this reading is not yet ranked against its own past.

Its 25-delta puts carry 2.00 volatility points more than the calls.

Current readings

30-day ATM implied volatilityⓘ
22.49%

Prices a move of about ±6.4% over 30 days, or ±1.4% on a typical day.

25-delta risk reversalⓘ
+2.00

Puts carry 2.00 volatility points more than calls the same distance from the money.

25-delta butterflyⓘ
+1.08

The wings carry 1.08 volatility points more than at-the-money.

Term structure slopeⓘ
1.025

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

Where 30-day implied volatility sits

Against 12 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
$71.19
30-day implied forward
$71.91
60-day ATM IV
23.41%
90-day ATM IV
23.06%
180-day ATM IV
23.05%
Expirations used
13
Total open interest
1,081,073
Put / call open interest
2.55

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 225 sessions

20%25%30%35%40%2024-09-23 — 30-day ATM IV 28%2024-10-10 — 30-day ATM IV 32%2024-10-16 — 30-day ATM IV 36%2024-10-18 — 30-day ATM IV 36%2024-10-21 — 30-day ATM IV 36%2025-01-23 — 30-day ATM IV 25%2025-06-10 — 30-day ATM IV 27%2026-09-16 — 30-day ATM IV 25%2026-09-17 — 30-day ATM IV 22%2026-09-18 — 30-day ATM IV 22%2026-09-21 — 30-day ATM IV 22%2026-09-22 — 30-day ATM IV 22%23 Sep18 Oct10 Jun17 Sep22 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2222.49%+2.001.025$71.19
2026-09-2121.96%+1.561.051$71.99
2026-09-1821.51%+2.221.057$72.75
2026-09-1722.14%+1.301.054$72.74
2026-09-1624.87%+3.430.997$72.74
2026-09-15———$74.05
2026-09-14———$74.11
2026-09-11———$73.90
2026-09-10———$73.81
2026-09-09———$73.45
2026-09-08———$74.31
2026-09-04———$75.27
2026-09-03———$74.87
2026-09-02———$74.24
2026-09-01———$72.62
2026-08-31———$73.56
2026-08-28———$74.30
2026-08-27———$74.35
2026-08-26———$74.58
2026-08-25———$74.33
2026-08-24———$74.76
2025-06-30———$59.39
2025-06-27———$59.45
2025-06-26———$59.48
2025-06-25———$58.14
2025-06-24———$58.42
2025-06-23———$57.87
2025-06-20———$56.96
2025-06-18———$56.53
2025-06-17———$55.79
2025-06-16———$56.49
2025-06-13———$56.23
2025-06-12———$57.78
2025-06-11———$58.13
2025-06-1026.94%+2.111.002$58.93
2025-06-09———$58.31
2025-06-06———$58.02
2025-06-05———$56.60
2025-06-04———$56.64
2025-06-03———$57.35
2025-06-02———$56.46
2025-05-30———$56.88
2025-05-29———$57.29
2025-05-28———$56.80
2025-05-27———$57.74
2025-05-23———$56.40
2025-05-22———$56.65
2025-05-21———$56.65
2025-05-20———$58.73
2025-05-19———$59.00
2025-05-16———$59.24
2025-05-15———$59.25
2025-05-14———$59.19
2025-05-13———$59.46
2025-05-12———$59.18
2025-05-09———$56.58
2025-05-08———$56.85
2025-05-07———$55.51
2025-05-06———$55.46
2025-05-05———$56.04
2025-05-02———$56.24
2025-05-01———$54.73
2025-04-30———$54.13
2025-04-29———$54.76
2025-04-28———$54.27
2025-04-25———$53.95
2025-04-24———$54.45
2025-04-23———$53.55
2025-04-22———$52.37
2025-04-21———$50.74
2025-04-17———$51.42
2025-04-16———$50.96
2025-04-15———$50.97
2025-04-14———$50.12
2025-04-11———$49.26
2025-04-10———$49.40
2025-04-09———$52.63
2025-04-08———$48.81
2025-04-07———$49.27
2025-04-04———$49.26
2025-04-03———$51.31
2025-04-02———$57.22
2025-04-01———$56.42
2025-03-31———$56.85
2025-03-28———$56.41
2025-03-27———$57.55
2025-03-26———$58.01
2025-03-25———$58.25
2025-03-24———$58.43
2025-03-21———$57.26
2025-03-20———$57.29
2025-03-19———$57.68
2025-03-18———$56.97
2025-03-17———$57.13
2025-03-14———$56.76
2025-03-13———$55.13
2025-03-12———$55.75
2025-03-11———$55.11
2025-03-10———$55.41
2025-03-07———$57.69
2025-03-06———$57.76
2025-03-05———$58.71
2025-03-04———$59.04
2025-03-03———$61.18
2025-02-28———$62.07
2025-02-27———$61.26
2025-02-26———$61.17
2025-02-25———$61.01
2025-02-24———$60.97
2025-02-21———$61.42
2025-02-20———$63.06
2025-02-19———$64.22
2025-02-18———$64.46
2025-02-14———$63.89
2025-02-13———$63.69
2025-02-12———$63.41
2025-02-11———$64.93
2025-02-10———$63.88
2025-02-07———$64.63
2025-02-06———$65.50

The chart covers every session in the archive, 225 in total. The table lists the most recent 120.

25-delta risk reversal

Last 225 sessions

-2.00.02.04.06.08.02024-09-23 — 25-delta RR (volatility points) 1.62024-10-10 — 25-delta RR (volatility points) 3.02024-10-16 — 25-delta RR (volatility points) 4.02024-10-18 — 25-delta RR (volatility points) 6.82024-10-21 — 25-delta RR (volatility points) 1.22025-01-23 — 25-delta RR (volatility points) 1.52025-06-10 — 25-delta RR (volatility points) 2.12026-09-16 — 25-delta RR (volatility points) 3.42026-09-17 — 25-delta RR (volatility points) 1.32026-09-18 — 25-delta RR (volatility points) 2.22026-09-21 — 25-delta RR (volatility points) 1.62026-09-22 — 25-delta RR (volatility points) 2.023 Sep18 Oct10 Jun17 Sep22 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

3d (2026-09-25) · 8d (2026-09-30) · 10d (2026-10-02)

20%22%24%26%28%30%32%2026-09-25 (3d) — 5Δ C — IV 30.29%2026-09-25 (3d) — 10Δ C — IV 29.06%2026-09-25 (3d) — 15Δ C — IV 28.20%2026-09-25 (3d) — 20Δ C — IV 27.47%2026-09-25 (3d) — 25Δ C — IV 26.72%2026-09-25 (3d) — 30Δ C — IV 25.97%2026-09-25 (3d) — 35Δ C — IV 25.81%2026-09-25 (3d) — 40Δ C — IV 25.74%2026-09-25 (3d) — 45Δ C — IV 25.77%2026-09-25 (3d) — ATM — IV 25.94%2026-09-25 (3d) — 45Δ P — IV 26.09%2026-09-25 (3d) — 40Δ P — IV 26.17%2026-09-25 (3d) — 35Δ P — IV 26.27%2026-09-25 (3d) — 30Δ P — IV 26.56%2026-09-25 (3d) — 25Δ P — IV 27.05%2026-09-25 (3d) — 20Δ P — IV 27.44%2026-09-25 (3d) — 15Δ P — IV 28.66%2026-09-25 (3d) — 10Δ P — IV 30.97%3d2026-09-30 (8d) — 20Δ C — IV 22.94%2026-09-30 (8d) — 25Δ C — IV 22.63%2026-09-30 (8d) — 30Δ C — IV 22.53%2026-09-30 (8d) — 35Δ C — IV 22.55%2026-09-30 (8d) — 40Δ C — IV 22.60%2026-09-30 (8d) — 45Δ C — IV 22.64%2026-09-30 (8d) — ATM — IV 22.66%2026-09-30 (8d) — 45Δ P — IV 22.68%2026-09-30 (8d) — 40Δ P — IV 22.69%2026-09-30 (8d) — 35Δ P — IV 22.81%2026-09-30 (8d) — 30Δ P — IV 23.33%2026-09-30 (8d) — 25Δ P — IV 24.12%2026-09-30 (8d) — 20Δ P — IV 25.02%8d2026-10-02 (10d) — 15Δ C — IV 24.09%2026-10-02 (10d) — 20Δ C — IV 23.81%2026-10-02 (10d) — 25Δ C — IV 23.29%2026-10-02 (10d) — 30Δ C — IV 23.27%2026-10-02 (10d) — 35Δ C — IV 23.28%2026-10-02 (10d) — 40Δ C — IV 23.04%2026-10-02 (10d) — 45Δ C — IV 23.15%2026-10-02 (10d) — ATM — IV 23.25%2026-10-02 (10d) — 45Δ P — IV 23.34%2026-10-02 (10d) — 40Δ P — IV 23.49%2026-10-02 (10d) — 35Δ P — IV 23.99%2026-10-02 (10d) — 30Δ P — IV 24.36%2026-10-02 (10d) — 25Δ P — IV 24.78%2026-10-02 (10d) — 20Δ P — IV 25.53%2026-10-02 (10d) — 15Δ P — IV 26.23%10d10Δ 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
Delta3d8d10d
5Δ call30.29%——
10Δ call29.06%——
15Δ call28.20%—24.09%
20Δ call27.47%22.94%23.81%
25Δ call26.72%22.63%23.29%
30Δ call25.97%22.53%23.27%
35Δ call25.81%22.55%23.28%
40Δ call25.74%22.60%23.04%
45Δ call25.77%22.64%23.15%
ATM25.94%22.66%23.25%
45Δ put26.09%22.68%23.34%
40Δ put26.17%22.69%23.49%
35Δ put26.27%22.81%23.99%
30Δ put26.56%23.33%24.36%
25Δ put27.05%24.12%24.78%
20Δ put27.44%25.02%25.53%
15Δ put28.66%—26.23%
10Δ put30.97%——

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-09-253$71.6625.94%27.05%26.72%+0.33+0.9412
2026-09-308$71.7022.66%24.12%22.63%+1.49+0.716
2026-10-0210$71.7223.25%24.78%23.29%+1.49+0.7914
2026-10-0917$71.7622.96%24.06%23.26%+0.80+0.7016
2026-10-1624$71.8922.40%24.16%21.94%+2.22+0.6519
2026-10-2331$71.9122.51%24.62%22.65%+1.97+1.1319
2026-10-3038$72.1424.09%25.29%22.54%+2.75-0.187
2026-11-2059$72.1523.43%25.23%23.07%+2.16+0.7219
2026-12-1887$72.4023.05%24.68%22.41%+2.27+0.4921
2027-01-15115$72.1523.10%24.72%22.55%+2.18+0.5424
2027-03-19178$72.4923.03%24.51%22.51%+2.00+0.4827
2027-06-17268$73.0823.73%25.97%23.02%+2.95+0.7724
2027-09-17360$73.4624.45%26.47%23.38%+3.09+0.477

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

13 listed expirations produced a usable reading

22%23%24%25%26%27%2026-09-25 — 3 days — at-the-money IV 25.94%2026-09-30 — 8 days — at-the-money IV 22.66%2026-10-02 — 10 days — at-the-money IV 23.25%2026-10-09 — 17 days — at-the-money IV 22.96%2026-10-16 — 24 days — at-the-money IV 22.40%2026-10-23 — 31 days — at-the-money IV 22.51%2026-10-30 — 38 days — at-the-money IV 24.09%2026-11-20 — 59 days — at-the-money IV 23.43%2026-12-18 — 87 days — at-the-money IV 23.05%2027-01-15 — 115 days — at-the-money IV 23.10%2027-03-19 — 178 days — at-the-money IV 23.03%2027-06-17 — 268 days — at-the-money IV 23.73%2027-09-17 — 360 days — at-the-money IV 24.45%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
2026-09-253 days$71.6625.94%$71.6712
2026-09-308 days$71.7022.66%$71.756
2026-10-0210 days$71.7223.25%$71.7714
2026-10-0917 days$71.7622.96%$71.8516
2026-10-1624 days$71.8922.40%$72.0119
2026-10-2331 days$71.9122.51%$72.0619
2026-10-3038 days$72.1424.09%$72.357
2026-11-2059 days$72.1523.43%$72.4719
2026-12-1887 days$72.4023.05%$72.8621
2027-01-15115 days$72.1523.10%$72.7624
2027-03-19178 days$72.4923.03%$73.4327
2027-06-17268 days$73.0823.73%$74.6024
2027-09-17360 days$73.4624.45%$75.667

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
22.49%
60 days
23.41%
90 days
23.06%
180 days
23.05%

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 225 sessions

0.800.901.001.101.201.302024-09-23 — 90-day over 30-day 1.252024-10-16 — 90-day over 30-day 0.852024-10-18 — 90-day over 30-day 0.882024-10-21 — 90-day over 30-day 0.832025-01-23 — 90-day over 30-day 1.102025-06-10 — 90-day over 30-day 1.002026-09-16 — 90-day over 30-day 1.002026-09-17 — 90-day over 30-day 1.052026-09-18 — 90-day over 30-day 1.062026-09-21 — 90-day over 30-day 1.052026-09-22 — 90-day over 30-day 1.0323 Sep21 Oct10 Jun18 Sep22 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.