Options Skew Analytics

BAC options analytics

BAC · Stock

Data as of 24 September 2026 (end of day)

BAC options are pricing a 30-day at-the-money volatility of 28.0%, a move of about ±8.0% over the next month. That is higher than 74% of the 236 sessions in its trailing year.

Its 25-delta puts carry 3.77 volatility points more than the calls, around the middle of its own range for the past year.

The term structure is inverted: 90-day volatility is 6% below 30-day, which happens when the market prices something dated into the nearer expirations.

Its next earnings report is 2026-10-14, before the open.

Across its last 3 reports the options market priced an average move of ±5.0% and BAC moved 1.7% on average, staying inside the priced band 3 times out of 3.

Current readings

30-day ATM implied volatilityⓘ
28.02%

Prices a move of about ±8.0% over 30 days, or ±1.8% on a typical day.

Higher than 74% of the past year.

25-delta risk reversalⓘ
+3.77

Puts carry 3.77 volatility points more than calls the same distance from the money.

Higher than 56% of the past year.

25-delta butterflyⓘ
+0.17

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

Term structure slopeⓘ
0.938

90-day volatility is 6% below 30-day.

Higher than 24% of the past year.

Where 30-day implied volatility sits

Against 236 prior sessions (one-year window)

28.0% — 74th percentile
19.2%59.2%
IV percentile, 1 year
74%
IV rank, 1 year
22%
IV percentile, 2 years
74%
IV rank, 2 years
22%

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
$56.03
30-day implied forward
$56.36
60-day ATM IV
26.25%
90-day ATM IV
26.29%
180-day ATM IV
26.37%
Expirations used
15
Total open interest
1,734,543
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 237 sessions

0%20%40%60%80%26 Aug20 Nov19 Feb14 May24 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2428.02%+3.770.938$56.03
2026-09-2327.45%+2.810.938$56.00
2026-09-2226.88%+3.210.955$56.20
2026-09-2125.52%+2.360.966$57.96
2026-09-1825.32%+2.710.976$57.73
2026-09-1725.50%+2.840.979$58.18
2026-09-1628.08%+3.080.931$57.90
2026-09-1526.65%+2.820.956$59.52
2026-09-1425.30%+2.800.988$59.47
2026-09-1122.94%+2.511.063$62.69
2026-09-1023.27%+3.191.064$62.56
2026-09-0922.32%+2.751.127$62.67
2026-09-0822.79%+2.481.111$62.39
2026-09-0420.85%+2.401.150$62.68
2026-09-0320.41%+2.301.155$63.04
2026-09-0220.03%+3.041.199$62.60
2026-09-0121.43%+2.721.117$61.99
2026-08-3120.50%+2.381.144$61.94
2026-08-2819.93%+2.241.177$62.32
2026-08-2720.42%+1.731.162$61.17
2026-08-2620.63%+2.071.149$62.23
2026-08-2520.32%+2.821.160$62.43
2026-08-2420.62%+3.091.157$62.33
2026-08-2120.50%+2.441.147$61.69
2026-08-2020.73%+2.291.132$61.86
2026-08-1919.74%+3.181.165$63.17
2026-08-1819.73%+2.581.179$64.23
2026-08-1719.76%+1.581.166$63.89
2025-06-3027.02%-0.230.914$47.32
2025-06-2725.06%+3.640.989$47.12
2025-06-2627.97%+3.270.894$47.46
2025-06-2524.91%+6.190.969$46.85
2025-06-2425.58%+3.520.943$46.66
2025-06-2326.46%+4.730.938$46.30
2025-06-2028.14%+2.650.919$45.50
2025-06-1828.79%+4.970.882$45.06
2025-06-1728.96%+4.900.926$44.23
2025-06-1626.53%+4.050.974$44.41
2025-06-1325.67%+4.821.049$44.09
2025-06-1223.57%+3.951.094$44.62
2025-06-1122.64%+3.861.125$44.73
2025-06-1022.00%+3.461.139$45.09
2025-06-0922.49%+3.671.133$44.87
2025-06-0621.89%+3.901.154$44.97
2025-06-0525.33%+4.871.069$44.38
2025-06-0423.13%+5.031.139$44.36
2025-06-0322.85%+5.081.139$44.65
2025-06-0223.93%+2.371.123$44.08
2025-05-3023.94%+4.381.124$44.13
2025-05-2923.27%+4.431.164$44.24
2025-05-2824.41%+4.891.108$44.06
2025-05-2724.37%+4.351.114$44.22
2025-05-2326.66%+4.951.079$43.20
2025-05-2225.82%+4.651.093$43.31
2025-05-2126.31%+4.531.076$43.25
2025-05-2023.21%+3.941.133$44.69
2025-05-1923.48%+3.951.101$44.77
2025-05-1622.89%+4.231.090$44.69
2025-05-1523.83%+4.031.086$44.38
2025-05-1423.66%+3.561.082$44.74
2025-05-1322.83%+3.701.088$44.28
2025-05-1222.23%+4.111.105$43.36
2025-05-0925.94%+5.111.078$41.79
2025-05-0827.31%+5.451.060$41.60
2025-05-0727.97%+6.141.042$40.93
2025-05-0628.79%+5.941.037$40.84
2025-05-0526.74%+7.081.075$41.12
2025-05-0227.29%+6.551.041$41.07
2025-05-0128.56%+6.021.055$40.17
2025-04-3029.85%+5.171.009$39.88
2025-04-2927.76%+5.371.062$39.99
2025-04-2829.30%+5.651.023$39.78
2025-04-2530.25%+6.791.042$39.69
2025-04-2430.61%+6.571.008$39.58
2025-04-2333.27%+7.520.976$38.75
2025-04-2234.41%+8.450.968$38.32
2025-04-2136.81%+9.441.020$36.92
2025-04-1733.44%+9.200.980$37.41
2025-04-1635.74%+9.640.942$37.33
2025-04-1532.02%+10.010.970$37.99
2025-04-1438.74%+10.670.901$36.67
2025-04-1145.31%+15.920.850$35.95
2025-04-1051.75%+19.130.817$35.85
2025-04-0943.01%+11.970.841$37.15
2025-04-0859.16%+19.670.785$35.03
2025-04-0756.23%+18.030.784$35.58
2025-04-0455.33%+18.260.789$34.39
2025-04-0343.23%+8.700.829$37.22
2025-04-0232.65%+5.600.864$41.85
2025-04-0133.47%+5.460.867$41.49
2025-03-3132.52%+5.190.868$41.73
2025-03-2832.45%+5.240.873$41.25
2025-03-2729.88%+4.440.864$42.56
2025-03-2629.71%+7.870.875$42.82
2025-03-2527.76%+4.280.898$43.28
2025-03-2427.89%+4.280.895$43.07
2025-03-2129.33%+4.220.898$42.47
2025-03-2030.26%+4.480.881$42.48
2025-03-1930.41%+4.420.878$42.21
2025-03-1832.11%+5.120.865$41.65
2025-03-1730.67%+4.630.889$41.44
2025-03-1429.33%+4.240.953$40.89
2025-03-1333.02%+5.750.906$39.67
2025-03-1232.13%+4.490.918$39.91
2025-03-1135.04%+8.180.892$39.61
2025-03-1034.12%+5.200.937$39.83
2025-03-0731.26%+5.660.928$41.40
2025-03-0631.93%+3.800.944$41.46
2025-03-0529.46%+4.490.935$42.29
2025-03-0434.97%+9.040.872$42.67
2025-03-0327.20%+4.180.988$45.56
2025-02-2824.84%+3.881.023$46.10
2025-02-2724.51%+2.341.067$44.12
2025-02-2624.40%+4.151.023$43.94
2025-02-2525.38%+4.240.997$43.94
2025-02-2424.19%+3.851.017$44.46
2025-02-2123.98%+1.901.056$44.81
2025-02-2022.21%+2.521.066$45.30
2025-02-1921.55%+1.391.072$46.01
2025-02-1821.22%+2.211.083$46.53

The chart covers every session in the archive, 237 in total. The table lists the most recent 120.

25-delta risk reversal

Last 237 sessions

-10.00.010.020.030.026 Aug20 Nov19 Feb14 May24 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

8d (2026-10-02) · 15d (2026-10-09) · 22d (2026-10-16)

20%25%30%35%40%2026-10-02 (8d) — 5Δ C — IV 24.78%2026-10-02 (8d) — 10Δ C — IV 24.03%2026-10-02 (8d) — 15Δ C — IV 23.80%2026-10-02 (8d) — 20Δ C — IV 23.73%2026-10-02 (8d) — 25Δ C — IV 23.79%2026-10-02 (8d) — 30Δ C — IV 23.90%2026-10-02 (8d) — 35Δ C — IV 24.02%2026-10-02 (8d) — 40Δ C — IV 24.15%2026-10-02 (8d) — 45Δ C — IV 24.33%2026-10-02 (8d) — ATM — IV 24.53%2026-10-02 (8d) — 45Δ P — IV 24.73%2026-10-02 (8d) — 40Δ P — IV 24.92%2026-10-02 (8d) — 35Δ P — IV 25.11%2026-10-02 (8d) — 30Δ P — IV 25.34%2026-10-02 (8d) — 25Δ P — IV 25.72%2026-10-02 (8d) — 20Δ P — IV 26.46%2026-10-02 (8d) — 15Δ P — IV 27.44%2026-10-02 (8d) — 10Δ P — IV 28.45%2026-10-02 (8d) — 5Δ P — IV 31.21%8d2026-10-09 (15d) — 5Δ C — IV 23.28%2026-10-09 (15d) — 10Δ C — IV 23.18%2026-10-09 (15d) — 15Δ C — IV 22.68%2026-10-09 (15d) — 20Δ C — IV 22.81%2026-10-09 (15d) — 25Δ C — IV 23.09%2026-10-09 (15d) — 30Δ C — IV 23.36%2026-10-09 (15d) — 35Δ C — IV 23.64%2026-10-09 (15d) — 40Δ C — IV 23.91%2026-10-09 (15d) — 45Δ C — IV 24.16%2026-10-09 (15d) — ATM — IV 24.40%2026-10-09 (15d) — 45Δ P — IV 24.64%2026-10-09 (15d) — 40Δ P — IV 24.84%2026-10-09 (15d) — 35Δ P — IV 25.05%2026-10-09 (15d) — 30Δ P — IV 25.33%2026-10-09 (15d) — 25Δ P — IV 25.77%2026-10-09 (15d) — 20Δ P — IV 26.38%2026-10-09 (15d) — 15Δ P — IV 27.31%2026-10-09 (15d) — 10Δ P — IV 28.22%2026-10-09 (15d) — 5Δ P — IV 31.00%15d2026-10-16 (22d) — 5Δ C — IV 29.22%2026-10-16 (22d) — 10Δ C — IV 28.49%2026-10-16 (22d) — 15Δ C — IV 27.64%2026-10-16 (22d) — 20Δ C — IV 27.78%2026-10-16 (22d) — 25Δ C — IV 27.90%2026-10-16 (22d) — 30Δ C — IV 28.16%2026-10-16 (22d) — 35Δ C — IV 28.51%2026-10-16 (22d) — 40Δ C — IV 28.72%2026-10-16 (22d) — 45Δ C — IV 29.22%2026-10-16 (22d) — ATM — IV 29.61%2026-10-16 (22d) — 45Δ P — IV 29.99%2026-10-16 (22d) — 40Δ P — IV 30.51%2026-10-16 (22d) — 35Δ P — IV 30.97%2026-10-16 (22d) — 30Δ P — IV 31.25%2026-10-16 (22d) — 25Δ P — IV 31.74%2026-10-16 (22d) — 20Δ P — IV 32.54%2026-10-16 (22d) — 15Δ P — IV 33.32%2026-10-16 (22d) — 10Δ P — IV 34.56%2026-10-16 (22d) — 5Δ P — IV 37.29%22d10Δ 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
Delta8d15d22d
5Δ call24.78%23.28%29.22%
10Δ call24.03%23.18%28.49%
15Δ call23.80%22.68%27.64%
20Δ call23.73%22.81%27.78%
25Δ call23.79%23.09%27.90%
30Δ call23.90%23.36%28.16%
35Δ call24.02%23.64%28.51%
40Δ call24.15%23.91%28.72%
45Δ call24.33%24.16%29.22%
ATM24.53%24.40%29.61%
45Δ put24.73%24.64%29.99%
40Δ put24.92%24.84%30.51%
35Δ put25.11%25.05%30.97%
30Δ put25.34%25.33%31.25%
25Δ put25.72%25.77%31.74%
20Δ put26.46%26.38%32.54%
15Δ put27.44%27.31%33.32%
10Δ put28.45%28.22%34.56%
5Δ put31.21%31.00%37.29%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-10-028$56.2424.53%25.72%23.79%+1.93+0.2313
2026-10-0915$56.2924.40%25.77%23.09%+2.68+0.0315
2026-10-1622$56.3429.61%31.74%27.90%+3.84+0.2126
2026-10-2329$56.3628.14%30.33%26.42%+3.91+0.2416
2026-10-3036$56.3327.45%28.84%25.77%+3.07-0.1514
2026-11-2057$56.5626.27%28.57%24.95%+3.62+0.4916
2026-12-1885$56.4426.15%27.97%24.67%+3.29+0.1718
2027-01-15113$56.6526.77%28.43%25.25%+3.17+0.0722
2027-02-19148$56.8125.79%27.35%24.69%+2.66+0.2312
2027-03-19176$56.8626.39%28.40%24.72%+3.68+0.1715
2027-04-16204$56.9126.22%28.19%25.05%+3.14+0.4015
2027-05-21239$57.1925.98%27.89%24.70%+3.19+0.3111
2027-06-17266$57.1626.28%27.97%24.62%+3.34+0.0119
2027-07-16295$57.3725.96%27.92%24.84%+3.08+0.4215
2027-09-17358$57.5526.55%27.79%24.97%+2.82-0.1716

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

15 listed expirations produced a usable reading

22%24%26%28%30%32%2026-10-02 — 8 days — at-the-money IV 24.53%2026-10-09 — 15 days — at-the-money IV 24.40%2026-10-16 — 22 days — at-the-money IV 29.61%2026-10-23 — 29 days — at-the-money IV 28.14%2026-10-30 — 36 days — at-the-money IV 27.45%2026-11-20 — 57 days — at-the-money IV 26.27%2026-12-18 — 85 days — at-the-money IV 26.15%2027-01-15 — 113 days — at-the-money IV 26.77%2027-02-19 — 148 days — at-the-money IV 25.79%2027-03-19 — 176 days — at-the-money IV 26.39%2027-04-16 — 204 days — at-the-money IV 26.22%2027-05-21 — 239 days — at-the-money IV 25.98%2027-06-17 — 266 days — at-the-money IV 26.28%2027-07-16 — 295 days — at-the-money IV 25.96%2027-09-17 — 358 days — at-the-money IV 26.55%306090180days 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
2026-10-028 days$56.2424.53%$56.2813
2026-10-0915 days$56.2924.40%$56.3515
2026-10-1622 days$56.3429.61%$56.4926
2026-10-2329 days$56.3628.14%$56.5416
2026-10-3036 days$56.3327.45%$56.5414
2026-11-2057 days$56.5626.27%$56.8616
2026-12-1885 days$56.4426.15%$56.9018
2027-01-15113 days$56.6526.77%$57.2822
2027-02-19148 days$56.8125.79%$57.5812
2027-03-19176 days$56.8626.39%$57.8215
2027-04-16204 days$56.9126.22%$58.0215
2027-05-21239 days$57.1925.98%$58.4711
2027-06-17266 days$57.1626.28%$58.6219
2027-07-16295 days$57.3725.96%$58.9515
2027-09-17358 days$57.5526.55%$59.5816

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
28.02%
60 days
26.25%
90 days
26.29%
180 days
26.37%

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 237 sessions

0.600.801.001.201.4026 Aug20 Nov19 Feb14 May24 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

2026-10-14Before the openAnnounced

How the pricing has held up

Over the last 3 reports

Landed inside the implied band
3 of 3
100% — about 68% is what an exactly-priced event gives
Mean implied move
5.0%
Mean move that happened
1.7%
absolute

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2026-07-14Before the open———
2026-04-15Before the open———
2026-01-14Before the open———
2025-10-15Before the open———
2025-07-16Before the open———
2025-04-15Before the open5.8%+3.6%0.62×
2025-01-16Before the open4.3%-1.0%0.23×
2024-10-15Before the open4.9%+0.5%0.09×
2024-07-16Before the open———
2024-04-16Before the open———
2024-01-12Before the open———
2024-01-08Before the open———
2023-10-17Before 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.