Options Skew Analytics

FFIV options analytics

FFIV · Stock

Data as of 22 September 2026 (end of day)

Some metrics unavailable for this session

FFIV options are pricing a 30-day at-the-money volatility of 41.1%, a move of about ±11.8% over the next month. Its history here is 226 sessions, short of the 180 a percentile needs, so this reading is not yet ranked against its own past.

Its 25-delta puts carry 3.58 volatility points more than the calls.

Its next earnings report is 2026-10-26 (estimated from its reporting cadence).

Across its last 3 reports the options market priced an average move of ±11.8% and FFIV moved 54.6% on average, staying inside the priced band 0 times out of 3.

Current readings

30-day ATM implied volatilityⓘ
41.10%

Prices a move of about ±11.8% over 30 days, or ±2.6% on a typical day.

25-delta risk reversalⓘ
+3.58

Puts carry 3.58 volatility points more than calls the same distance from the money.

25-delta butterflyⓘ
-0.23

The wings carry 0.23 volatility points less than at-the-money.

Term structure slopeⓘ
1.048

90-day volatility is 5% above 30-day.

Where 30-day implied volatility sits

Against 20 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
$453.33
30-day implied forward
$453.64
60-day ATM IV
46.69%
90-day ATM IV
43.06%
180-day ATM IV
—
Expirations used
5
Total open interest
6,389
Put / call open interest
0.38

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 226 sessions

20%30%40%50%60%2024-10-16 — 30-day ATM IV 34%2024-10-17 — 30-day ATM IV 35%2024-10-18 — 30-day ATM IV 33%2024-10-21 — 30-day ATM IV 34%2024-10-22 — 30-day ATM IV 34%2024-10-23 — 30-day ATM IV 35%2024-10-24 — 30-day ATM IV 33%2024-10-25 — 30-day ATM IV 34%2024-10-28 — 30-day ATM IV 39%2025-01-22 — 30-day ATM IV 35%2025-01-29 — 30-day ATM IV 24%2025-04-17 — 30-day ATM IV 48%2025-04-22 — 30-day ATM IV 50%2025-04-24 — 30-day ATM IV 45%2025-04-25 — 30-day ATM IV 46%2025-04-28 — 30-day ATM IV 52%2026-09-16 — 30-day ATM IV 37%2026-09-18 — 30-day ATM IV 37%2026-09-21 — 30-day ATM IV 40%2026-09-22 — 30-day ATM IV 41%16 Oct23 Oct29 Jan25 Apr22 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2241.10%+3.581.048$453.33
2026-09-2139.54%+1.811.084$450.10
2026-09-1836.88%+2.471.160$432.03
2026-09-17———$434.62
2026-09-1637.21%+4.141.172$423.59
2026-09-15———$430.88
2026-09-14———$411.49
2026-09-11———$411.71
2026-09-10———$398.48
2026-09-09———$404.63
2026-09-08———$389.62
2026-09-04———$390.47
2026-09-03———$392.15
2026-09-02———$391.08
2026-09-01———$395.72
2026-08-31———$407.13
2026-08-28———$394.24
2026-08-27———$410.22
2026-08-26———$399.59
2026-08-25———$382.75
2026-08-24———$379.04
2026-08-21———$384.63
2025-06-30———$294.32
2025-06-27———$295.75
2025-06-26———$289.09
2025-06-25———$294.41
2025-06-24———$295.90
2025-06-23———$295.09
2025-06-20———$287.13
2025-06-18———$286.48
2025-06-17———$288.59
2025-06-16———$290.34
2025-06-13———$286.61
2025-06-12———$291.66
2025-06-11———$292.89
2025-06-10———$293.66
2025-06-09———$294.73
2025-06-06———$295.43
2025-06-05———$293.96
2025-06-04———$293.83
2025-06-03———$290.65
2025-06-02———$286.02
2025-05-30———$285.38
2025-05-29———$280.59
2025-05-28———$283.29
2025-05-27———$286.59
2025-05-23———$282.10
2025-05-22———$284.48
2025-05-21———$286.26
2025-05-20———$286.90
2025-05-19———$285.70
2025-05-16———$284.92
2025-05-15———$282.67
2025-05-14———$281.59
2025-05-13———$283.23
2025-05-12———$280.35
2025-05-09———$270.07
2025-05-08———$273.14
2025-05-07———$267.48
2025-05-06———$264.82
2025-05-05———$267.19
2025-05-02———$268.81
2025-05-01———$265.77
2025-04-30———$264.74
2025-04-29———$262.72
2025-04-2851.82%+9.570.790$265.07
2025-04-2545.87%+7.190.832$270.03
2025-04-2444.82%+7.710.832$268.16
2025-04-23———$262.46
2025-04-2249.87%+10.360.818$254.77
2025-04-21———$250.80
2025-04-1748.39%+11.670.846$258.61
2025-04-16———$258.98
2025-04-15———$263.53
2025-04-14———$262.69
2025-04-11———$261.68
2025-04-10———$255.00
2025-04-09———$264.14
2025-04-08———$241.53
2025-04-07———$243.48
2025-04-04———$239.25
2025-04-03———$250.98
2025-04-02———$272.73
2025-04-01———$268.58
2025-03-31———$266.27
2025-03-28———$263.88
2025-03-27———$270.08
2025-03-26———$272.84
2025-03-25———$275.05
2025-03-24———$274.31
2025-03-21———$268.40
2025-03-20———$268.48
2025-03-19———$270.21
2025-03-18———$264.83
2025-03-17———$267.45
2025-03-14———$262.46
2025-03-13———$257.42
2025-03-12———$266.06
2025-03-11———$265.31
2025-03-10———$266.50
2025-03-07———$275.63
2025-03-06———$275.76
2025-03-05———$282.73
2025-03-04———$280.11
2025-03-03———$284.15
2025-02-28———$292.43
2025-02-27———$290.97
2025-02-26———$294.82
2025-02-25———$292.98
2025-02-24———$293.21
2025-02-21———$295.56
2025-02-20———$304.60
2025-02-19———$310.08
2025-02-18———$307.59
2025-02-14———$310.18
2025-02-13———$310.45
2025-02-12———$310.60
2025-02-11———$308.39
2025-02-10———$308.35
2025-02-07———$306.60

The chart covers every session in the archive, 226 in total. The table lists the most recent 120.

25-delta risk reversal

Last 226 sessions

-5.00.05.010.015.02024-10-16 — 25-delta RR (volatility points) 3.32024-10-17 — 25-delta RR (volatility points) 3.12024-10-18 — 25-delta RR (volatility points) 2.82024-10-21 — 25-delta RR (volatility points) 2.92024-10-22 — 25-delta RR (volatility points) 3.32024-10-23 — 25-delta RR (volatility points) 3.42024-10-24 — 25-delta RR (volatility points) 3.92024-10-25 — 25-delta RR (volatility points) 1.92024-10-28 — 25-delta RR (volatility points) 1.62025-01-22 — 25-delta RR (volatility points) 2.02025-01-29 — 25-delta RR (volatility points) 0.42025-04-17 — 25-delta RR (volatility points) 11.72025-04-22 — 25-delta RR (volatility points) 10.42025-04-24 — 25-delta RR (volatility points) 7.72025-04-25 — 25-delta RR (volatility points) 7.22025-04-28 — 25-delta RR (volatility points) 9.62026-09-16 — 25-delta RR (volatility points) 4.12026-09-18 — 25-delta RR (volatility points) 2.52026-09-21 — 25-delta RR (volatility points) 1.82026-09-22 — 25-delta RR (volatility points) 3.616 Oct23 Oct29 Jan25 Apr22 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

24d (2026-10-16) · 59d (2026-11-20) · 87d (2026-12-18)

30%35%40%45%50%55%2026-10-16 (24d) — 20Δ C — IV 35.85%2026-10-16 (24d) — 25Δ C — IV 35.59%2026-10-16 (24d) — 30Δ C — IV 35.86%2026-10-16 (24d) — 35Δ C — IV 37.66%2026-10-16 (24d) — 40Δ C — IV 38.00%2026-10-16 (24d) — 45Δ C — IV 37.26%2026-10-16 (24d) — ATM — IV 37.83%2026-10-16 (24d) — 45Δ P — IV 38.73%2026-10-16 (24d) — 40Δ P — IV 38.70%2026-10-16 (24d) — 35Δ P — IV 38.70%2026-10-16 (24d) — 30Δ P — IV 39.16%2026-10-16 (24d) — 25Δ P — IV 39.46%2026-10-16 (24d) — 20Δ P — IV 39.73%2026-10-16 (24d) — 15Δ P — IV 40.22%2026-10-16 (24d) — 10Δ P — IV 39.55%24d2026-11-20 (59d) — 20Δ C — IV 45.11%2026-11-20 (59d) — 25Δ C — IV 45.17%2026-11-20 (59d) — 30Δ C — IV 45.57%2026-11-20 (59d) — 35Δ C — IV 45.72%2026-11-20 (59d) — 40Δ C — IV 46.46%2026-11-20 (59d) — 45Δ C — IV 46.58%2026-11-20 (59d) — ATM — IV 46.87%2026-11-20 (59d) — 45Δ P — IV 47.20%2026-11-20 (59d) — 40Δ P — IV 47.46%2026-11-20 (59d) — 35Δ P — IV 47.62%2026-11-20 (59d) — 30Δ P — IV 47.77%2026-11-20 (59d) — 25Δ P — IV 48.34%2026-11-20 (59d) — 20Δ P — IV 48.87%2026-11-20 (59d) — 15Δ P — IV 49.60%59d2026-12-18 (87d) — 25Δ C — IV 41.99%2026-12-18 (87d) — 30Δ C — IV 41.87%2026-12-18 (87d) — 35Δ C — IV 42.83%2026-12-18 (87d) — 40Δ C — IV 42.44%2026-12-18 (87d) — 45Δ C — IV 42.69%2026-12-18 (87d) — ATM — IV 43.28%2026-12-18 (87d) — 45Δ P — IV 43.81%2026-12-18 (87d) — 40Δ P — IV 44.45%2026-12-18 (87d) — 35Δ P — IV 44.77%2026-12-18 (87d) — 30Δ P — IV 45.26%2026-12-18 (87d) — 25Δ P — IV 45.77%2026-12-18 (87d) — 20Δ P — IV 45.64%2026-12-18 (87d) — 15Δ P — IV 45.86%87d10Δ 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
Delta24d59d87d
20Δ call35.85%45.11%—
25Δ call35.59%45.17%41.99%
30Δ call35.86%45.57%41.87%
35Δ call37.66%45.72%42.83%
40Δ call38.00%46.46%42.44%
45Δ call37.26%46.58%42.69%
ATM37.83%46.87%43.28%
45Δ put38.73%47.20%43.81%
40Δ put38.70%47.46%44.45%
35Δ put38.70%47.62%44.77%
30Δ put39.16%47.77%45.26%
25Δ put39.46%48.34%45.77%
20Δ put39.73%48.87%45.64%
15Δ put40.22%49.60%45.86%
10Δ put39.55%——

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-10-1624$453.5137.83%39.46%35.59%+3.87-0.3110
2026-11-2059$454.2846.87%48.34%45.17%+3.17-0.1218
2026-12-1887$456.0143.28%45.77%41.99%+3.77+0.6015
2027-01-15115$457.9541.70%43.62%40.77%+2.85+0.4918
2027-02-19150$459.2943.75%44.67%41.91%+2.77-0.4610

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

36%38%40%42%44%46%48%2026-10-16 — 24 days — at-the-money IV 37.83%2026-11-20 — 59 days — at-the-money IV 46.87%2026-12-18 — 87 days — at-the-money IV 43.28%2027-01-15 — 115 days — at-the-money IV 41.70%2027-02-19 — 150 days — at-the-money IV 43.75%306090days 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
2026-10-1624 days$453.5137.83%$455.6510
2026-11-2059 days$454.2846.87%$462.4218
2026-12-1887 days$456.0143.28%$466.3015
2027-01-15115 days$457.9541.70%$470.6718
2027-02-19150 days$459.2943.75%$477.7110

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
41.10%
60 days
46.69%
90 days
43.06%
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 226 sessions

0.600.801.001.201.402024-10-16 — 90-day over 30-day 0.772024-10-17 — 90-day over 30-day 0.762024-10-18 — 90-day over 30-day 0.772024-10-21 — 90-day over 30-day 0.772024-10-22 — 90-day over 30-day 0.772024-10-23 — 90-day over 30-day 0.782024-10-24 — 90-day over 30-day 0.792024-10-28 — 90-day over 30-day 0.752025-01-29 — 90-day over 30-day 1.072025-04-17 — 90-day over 30-day 0.852025-04-22 — 90-day over 30-day 0.822025-04-24 — 90-day over 30-day 0.832025-04-25 — 90-day over 30-day 0.832025-04-28 — 90-day over 30-day 0.792026-09-16 — 90-day over 30-day 1.172026-09-18 — 90-day over 30-day 1.162026-09-21 — 90-day over 30-day 1.082026-09-22 — 90-day over 30-day 1.0516 Oct22 Oct17 Apr28 Apr22 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.

Earnings

What the options priced in before each report, and what happened

Next report

2026-10-26Time not statedEstimated from its reporting cadence

How the pricing has held up

Over the last 3 reports

Landed inside the implied band
0 of 3
0% — about 68% is what an exactly-priced event gives
Mean implied move
11.8%
Mean move that happened
54.6%
absolute

Reports

Newest first. The implied move is one standard deviation, priced from the session before the release.

ReportSessionImplied ±RealisedRealised / implied
2026-07-27After the close———
2026-04-28After the close———
2026-01-27After the close———
2025-10-27After the close———
2025-07-30After the close———
2025-04-28After the close13.6%+45.1%3.32×
2025-01-28After the close11.1%+42.6%3.83×
2024-10-28After the close10.6%+76.1%7.19×
2024-07-29After the close———
2024-04-29After the close———
2024-01-29After the close———
2023-10-24After the close———

The implied move is read from the at-the-money straddle on the first expiration strictly after the report date, converted to a one-standard-deviation move and divided by the forward. Realised moves are the close-to-close return across the event, measured from the session before the release to the session after it.

Report dates that have already happened come from the company’s own 8-K filing and are exact. A date still in the future is either one the company has announced, or an estimate from its reporting cadence.