Options Skew Analytics

BMNR options analytics

BMNR · Stock

Data as of 25 September 2026 (end of day)

Some metrics unavailable for this session

BMNR options are pricing a 30-day at-the-money volatility of 74.8%, a move of about ±21.5% over the next month. Its history here is 8 sessions, short of the 180 a percentile needs, so this reading is not yet ranked against its own past.

Its 25-delta calls carry 7.28 volatility points more than the puts.

Longer-dated options carry more: 90-day volatility is 5% above 30-day.

Current readings

30-day ATM implied volatilityⓘ
74.85%

Prices a move of about ±21.5% over 30 days, or ±4.7% on a typical day.

25-delta risk reversalⓘ
-7.28

Calls carry 7.28 volatility points more than puts the same distance from the money.

25-delta butterflyⓘ
+0.61

The wings carry 0.61 volatility points more than at-the-money.

Term structure slopeⓘ
1.055

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

Where 30-day implied volatility sits

Against 8 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
$27.56
30-day implied forward
$27.60
60-day ATM IV
77.23%
90-day ATM IV
78.95%
180-day ATM IV
—
Expirations used
8
Total open interest
1,014,772
Put / call open interest
0.25

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 8 sessions

72%74%76%78%80%82%2026-09-16 — 30-day ATM IV 76%2026-09-17 — 30-day ATM IV 73%2026-09-18 — 30-day ATM IV 76%2026-09-21 — 30-day ATM IV 81%2026-09-22 — 30-day ATM IV 76%2026-09-23 — 30-day ATM IV 75%2026-09-24 — 30-day ATM IV 76%2026-09-25 — 30-day ATM IV 75%16 Sep18 Sep22 Sep23 Sep25 Sep
Show the underlying numbers (most recent 8)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2574.85%-7.281.055$27.56
2026-09-2475.88%-4.751.051$28.03
2026-09-2374.87%-6.461.052$27.46
2026-09-2275.64%-4.201.066$28.76
2026-09-2181.13%-5.651.001$28.25
2026-09-1876.40%-4.751.047$25.99
2026-09-1773.50%-4.671.064$23.89
2026-09-1676.39%-3.981.039$22.81

The chart covers every session in the archive, 8 in total. The table lists the most recent 8.

25-delta risk reversal

Last 8 sessions

-8.0-6.0-4.0-2.00.02.02026-09-16 — 25-delta RR (volatility points) -4.02026-09-17 — 25-delta RR (volatility points) -4.72026-09-18 — 25-delta RR (volatility points) -4.82026-09-21 — 25-delta RR (volatility points) -5.62026-09-22 — 25-delta RR (volatility points) -4.22026-09-23 — 25-delta RR (volatility points) -6.52026-09-24 — 25-delta RR (volatility points) -4.82026-09-25 — 25-delta RR (volatility points) -7.316 Sep18 Sep22 Sep23 Sep25 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

7d (2026-10-02) · 14d (2026-10-09) · 21d (2026-10-16)

60%70%80%90%100%2026-10-02 (7d) — 5Δ C — IV 86.54%2026-10-02 (7d) — 10Δ C — IV 79.48%2026-10-02 (7d) — 15Δ C — IV 75.72%2026-10-02 (7d) — 20Δ C — IV 73.87%2026-10-02 (7d) — 25Δ C — IV 72.41%2026-10-02 (7d) — 30Δ C — IV 71.95%2026-10-02 (7d) — 35Δ C — IV 71.51%2026-10-02 (7d) — 40Δ C — IV 70.72%2026-10-02 (7d) — 45Δ C — IV 70.58%2026-10-02 (7d) — ATM — IV 70.59%2026-10-02 (7d) — 45Δ P — IV 70.71%2026-10-02 (7d) — 40Δ P — IV 70.97%2026-10-02 (7d) — 35Δ P — IV 70.53%2026-10-02 (7d) — 30Δ P — IV 69.57%2026-10-02 (7d) — 25Δ P — IV 68.99%2026-10-02 (7d) — 20Δ P — IV 69.05%2026-10-02 (7d) — 15Δ P — IV 69.20%2026-10-02 (7d) — 10Δ P — IV 70.30%2026-10-02 (7d) — 5Δ P — IV 72.11%7d2026-10-09 (14d) — 10Δ C — IV 81.67%2026-10-09 (14d) — 15Δ C — IV 76.59%2026-10-09 (14d) — 20Δ C — IV 75.63%2026-10-09 (14d) — 25Δ C — IV 74.37%2026-10-09 (14d) — 30Δ C — IV 73.70%2026-10-09 (14d) — 35Δ C — IV 72.72%2026-10-09 (14d) — 40Δ C — IV 71.94%2026-10-09 (14d) — 45Δ C — IV 72.72%2026-10-09 (14d) — ATM — IV 71.65%2026-10-09 (14d) — 45Δ P — IV 71.21%2026-10-09 (14d) — 40Δ P — IV 71.30%2026-10-09 (14d) — 35Δ P — IV 71.08%2026-10-09 (14d) — 30Δ P — IV 70.79%2026-10-09 (14d) — 25Δ P — IV 70.95%2026-10-09 (14d) — 20Δ P — IV 70.49%2026-10-09 (14d) — 15Δ P — IV 72.04%2026-10-09 (14d) — 10Δ P — IV 73.18%2026-10-09 (14d) — 5Δ P — IV 82.13%14d2026-10-16 (21d) — 10Δ C — IV 88.67%2026-10-16 (21d) — 15Δ C — IV 80.10%2026-10-16 (21d) — 20Δ C — IV 78.47%2026-10-16 (21d) — 25Δ C — IV 76.92%2026-10-16 (21d) — 30Δ C — IV 75.79%2026-10-16 (21d) — 35Δ C — IV 75.28%2026-10-16 (21d) — 40Δ C — IV 75.09%2026-10-16 (21d) — 45Δ C — IV 74.65%2026-10-16 (21d) — ATM — IV 74.25%2026-10-16 (21d) — 45Δ P — IV 74.11%2026-10-16 (21d) — 40Δ P — IV 70.02%2026-10-16 (21d) — 35Δ P — IV 70.37%2026-10-16 (21d) — 30Δ P — IV 75.14%2026-10-16 (21d) — 25Δ P — IV 70.43%2026-10-16 (21d) — 20Δ P — IV 69.13%2026-10-16 (21d) — 15Δ P — IV 71.70%2026-10-16 (21d) — 10Δ P — IV 73.53%2026-10-16 (21d) — 5Δ P — IV 80.21%21d10Δ 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
Delta7d14d21d
5Δ call86.54%——
10Δ call79.48%81.67%88.67%
15Δ call75.72%76.59%80.10%
20Δ call73.87%75.63%78.47%
25Δ call72.41%74.37%76.92%
30Δ call71.95%73.70%75.79%
35Δ call71.51%72.72%75.28%
40Δ call70.72%71.94%75.09%
45Δ call70.58%72.72%74.65%
ATM70.59%71.65%74.25%
45Δ put70.71%71.21%74.11%
40Δ put70.97%71.30%70.02%
35Δ put70.53%71.08%70.37%
30Δ put69.57%70.79%75.14%
25Δ put68.99%70.95%70.43%
20Δ put69.05%70.49%69.13%
15Δ put69.20%72.04%71.70%
10Δ put70.30%73.18%73.53%
5Δ put72.11%82.13%80.21%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-10-027$27.6670.59%68.99%72.41%-3.42+0.1125
2026-10-0914$27.6771.65%70.95%74.37%-3.42+1.0021
2026-10-1621$27.6074.25%70.43%76.92%-6.50-0.5830
2026-10-2328$27.5576.46%70.78%77.96%-7.18-2.0924
2026-10-3035$27.7271.53%73.83%81.33%-7.49+6.0522
2026-11-0642$27.6374.00%73.39%80.53%-7.15+2.9611
2026-11-2056$27.8276.86%75.39%79.13%-3.73+0.4023
2027-01-15112$27.9779.61%76.26%82.21%-5.95-0.3737

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

8 listed expirations produced a usable reading

65%70%75%80%85%2026-10-02 — 7 days — at-the-money IV 70.59%2026-10-09 — 14 days — at-the-money IV 71.65%2026-10-16 — 21 days — at-the-money IV 74.25%2026-10-23 — 28 days — at-the-money IV 76.46%2026-10-30 — 35 days — at-the-money IV 71.53%2026-11-06 — 42 days — at-the-money IV 74.00%2026-11-20 — 56 days — at-the-money IV 76.86%2027-01-15 — 112 days — at-the-money IV 79.61%7306090days 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
2026-10-027 days$27.6670.59%$27.7925
2026-10-0914 days$27.6771.65%$27.9421
2026-10-1621 days$27.6074.25%$28.0430
2026-10-2328 days$27.5576.46%$28.1724
2026-10-3035 days$27.7271.53%$28.4122
2026-11-0642 days$27.6374.00%$28.5211
2026-11-2056 days$27.8276.86%$29.1123
2027-01-15112 days$27.9779.61%$30.8337

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
74.85%
60 days
77.23%
90 days
78.95%
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 8 sessions

0.981.001.021.041.061.082026-09-16 — 90-day over 30-day 1.042026-09-17 — 90-day over 30-day 1.062026-09-18 — 90-day over 30-day 1.052026-09-21 — 90-day over 30-day 1.002026-09-22 — 90-day over 30-day 1.072026-09-23 — 90-day over 30-day 1.052026-09-24 — 90-day over 30-day 1.052026-09-25 — 90-day over 30-day 1.0516 Sep18 Sep22 Sep23 Sep25 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

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2025-11-21Before the open———
2025-01-13After the close———
2024-12-11After the close———
2024-07-18Time not stated———
2024-02-28Time not stated———

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.