Options Skew Analytics

M options analytics

M · Stock

Data as of 23 September 2026 (end of day)

Some metrics unavailable for this session

M options are pricing a 30-day at-the-money volatility of 38.6%, a move of about ±11.1% over the next month. Its history here is 5 sessions, short of the 180 a percentile needs, so this reading is not yet ranked against its own past.

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

Longer-dated options carry more: 90-day volatility is 13% above 30-day.

Its next earnings report is 2026-12-17 (estimated from its reporting cadence).

Current readings

30-day ATM implied volatilityⓘ
38.57%

Prices a move of about ±11.1% over 30 days, or ±2.4% on a typical day.

25-delta risk reversalⓘ
-0.47

Calls carry 0.47 volatility points more than puts the same distance from the money.

25-delta butterflyⓘ
+0.56

The wings carry 0.56 volatility points more than at-the-money.

Term structure slopeⓘ
1.131

90-day volatility is 13% above 30-day.

Where 30-day implied volatility sits

Against 5 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
$22.24
30-day implied forward
$22.41
60-day ATM IV
42.11%
90-day ATM IV
43.61%
180-day ATM IV
—
Expirations used
9
Total open interest
78,281
Put / call open interest
0.49

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 5 sessions

36%37%38%39%40%2026-09-17 — 30-day ATM IV 39%2026-09-18 — 30-day ATM IV 37%2026-09-21 — 30-day ATM IV 39%2026-09-22 — 30-day ATM IV 39%2026-09-23 — 30-day ATM IV 39%17 Sep18 Sep21 Sep22 Sep23 Sep
Show the underlying numbers (most recent 5)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2338.57%-0.471.131$22.24
2026-09-2239.01%-0.081.143$22.78
2026-09-2138.59%-0.001.147$22.19
2026-09-1837.14%+0.011.163$21.94
2026-09-1739.03%-0.011.126$21.64

The chart covers every session in the archive, 5 in total. The table lists the most recent 5.

25-delta risk reversal

Last 5 sessions

-0.6-0.4-0.20.00.22026-09-17 — 25-delta RR (volatility points) -0.02026-09-18 — 25-delta RR (volatility points) 0.02026-09-21 — 25-delta RR (volatility points) -0.02026-09-22 — 25-delta RR (volatility points) -0.12026-09-23 — 25-delta RR (volatility points) -0.517 Sep18 Sep21 Sep22 Sep23 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

9d (2026-10-02) · 16d (2026-10-09) · 23d (2026-10-16)

36%38%40%42%44%2026-10-02 (9d) — 10Δ C — IV 42.60%2026-10-02 (9d) — 15Δ C — IV 42.53%2026-10-02 (9d) — 20Δ C — IV 41.92%2026-10-02 (9d) — 25Δ C — IV 40.75%2026-10-02 (9d) — 30Δ C — IV 38.94%2026-10-02 (9d) — 35Δ C — IV 38.38%2026-10-02 (9d) — 40Δ C — IV 39.03%2026-10-02 (9d) — 45Δ C — IV 39.93%2026-10-02 (9d) — ATM — IV 40.37%2026-10-02 (9d) — 45Δ P — IV 40.52%2026-10-02 (9d) — 40Δ P — IV 40.64%2026-10-02 (9d) — 35Δ P — IV 40.87%2026-10-02 (9d) — 30Δ P — IV 41.23%2026-10-02 (9d) — 25Δ P — IV 41.41%2026-10-02 (9d) — 20Δ P — IV 41.13%2026-10-02 (9d) — 15Δ P — IV 40.83%2026-10-02 (9d) — 10Δ P — IV 41.75%2026-10-02 (9d) — 5Δ P — IV 43.49%9d2026-10-09 (16d) — 25Δ C — IV 39.35%2026-10-09 (16d) — 30Δ C — IV 38.43%2026-10-09 (16d) — 35Δ C — IV 38.27%2026-10-09 (16d) — 40Δ C — IV 38.28%2026-10-09 (16d) — 45Δ C — IV 38.91%2026-10-09 (16d) — ATM — IV 39.36%2026-10-09 (16d) — 45Δ P — IV 39.38%2026-10-09 (16d) — 40Δ P — IV 39.40%2026-10-09 (16d) — 35Δ P — IV 39.75%2026-10-09 (16d) — 30Δ P — IV 40.17%2026-10-09 (16d) — 25Δ P — IV 40.15%2026-10-09 (16d) — 20Δ P — IV 40.15%2026-10-09 (16d) — 15Δ P — IV 41.05%2026-10-09 (16d) — 10Δ P — IV 41.81%2026-10-09 (16d) — 5Δ P — IV 40.35%16d2026-10-16 (23d) — 15Δ C — IV 39.52%2026-10-16 (23d) — 20Δ C — IV 38.91%2026-10-16 (23d) — 25Δ C — IV 39.80%2026-10-16 (23d) — 30Δ C — IV 39.43%2026-10-16 (23d) — 35Δ C — IV 38.99%2026-10-16 (23d) — 40Δ C — IV 38.83%2026-10-16 (23d) — 45Δ C — IV 38.60%2026-10-16 (23d) — ATM — IV 38.43%2026-10-16 (23d) — 45Δ P — IV 38.58%2026-10-16 (23d) — 40Δ P — IV 38.66%2026-10-16 (23d) — 35Δ P — IV 37.83%2026-10-16 (23d) — 30Δ P — IV 37.56%2026-10-16 (23d) — 25Δ P — IV 39.13%2026-10-16 (23d) — 20Δ P — IV 39.61%2026-10-16 (23d) — 15Δ P — IV 40.00%2026-10-16 (23d) — 10Δ P — IV 40.09%2026-10-16 (23d) — 5Δ P — IV 41.97%23d10Δ 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
Delta9d16d23d
10Δ call42.60%——
15Δ call42.53%—39.52%
20Δ call41.92%—38.91%
25Δ call40.75%39.35%39.80%
30Δ call38.94%38.43%39.43%
35Δ call38.38%38.27%38.99%
40Δ call39.03%38.28%38.83%
45Δ call39.93%38.91%38.60%
ATM40.37%39.36%38.43%
45Δ put40.52%39.38%38.58%
40Δ put40.64%39.40%38.66%
35Δ put40.87%39.75%37.83%
30Δ put41.23%40.17%37.56%
25Δ put41.41%40.15%39.13%
20Δ put41.13%40.15%39.61%
15Δ put40.83%41.05%40.00%
10Δ put41.75%41.81%40.09%
5Δ put43.49%40.35%41.97%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-10-029$22.3940.37%41.41%40.75%+0.67+0.7110
2026-10-0916$22.4039.36%40.15%39.35%+0.80+0.3910
2026-10-1623$22.3938.43%39.13%39.80%-0.67+1.0314
2026-10-2330$22.4138.57%38.90%39.37%-0.47+0.5610
2026-10-3037$22.4338.62%38.92%39.86%-0.94+0.7710
2026-12-1886$22.4143.71%44.57%44.57%-0.00+0.8711
2027-01-15114$22.4343.19%43.85%42.79%+1.07+0.1417
2027-02-19149$22.4843.18%42.83%43.01%-0.18-0.2619
2027-03-19177$22.5744.23%44.77%44.56%+0.21+0.4414

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

9 listed expirations produced a usable reading

36%38%40%42%44%46%2026-10-02 — 9 days — at-the-money IV 40.37%2026-10-09 — 16 days — at-the-money IV 39.36%2026-10-16 — 23 days — at-the-money IV 38.43%2026-10-23 — 30 days — at-the-money IV 38.57%2026-10-30 — 37 days — at-the-money IV 38.62%2026-12-18 — 86 days — at-the-money IV 43.71%2027-01-15 — 114 days — at-the-money IV 43.19%2027-02-19 — 149 days — at-the-money IV 43.18%2027-03-19 — 177 days — at-the-money IV 44.23%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
2026-10-029 days$22.3940.37%$22.4410
2026-10-0916 days$22.4039.36%$22.4810
2026-10-1623 days$22.3938.43%$22.5014
2026-10-2330 days$22.4138.57%$22.5510
2026-10-3037 days$22.4338.62%$22.6010
2026-12-1886 days$22.4143.71%$22.9211
2027-01-15114 days$22.4343.19%$23.0917
2027-02-19149 days$22.4843.18%$23.3519
2027-03-19177 days$22.5744.23%$23.6614

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
38.57%
60 days
42.11%
90 days
43.61%
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 5 sessions

0.951.001.051.101.151.202026-09-17 — 90-day over 30-day 1.132026-09-18 — 90-day over 30-day 1.162026-09-21 — 90-day over 30-day 1.152026-09-22 — 90-day over 30-day 1.142026-09-23 — 90-day over 30-day 1.1317 Sep18 Sep21 Sep22 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.

Earnings

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

Next report

2026-12-17Time not statedEstimated from its reporting cadence

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2026-09-10Before the open———
2026-06-03Before the open———
2026-03-18Before the open———
2025-12-03Before the open———
2025-09-03Before the open———
2025-05-28Before the open———
2025-03-06Before the open———
2024-12-11Before the open———
2024-11-25Before the open———
2024-08-21Before the open———
2024-05-21Before the open———
2024-02-27Before the open———
2023-11-16Before the open———

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.