Options Skew Analytics

DAL options analytics

DAL · Stock

Data as of 22 September 2026 (end of day)

DAL options are pricing a 30-day at-the-money volatility of 45.8%, a move of about ±13.1% over the next month. That is higher than 68% of the 227 sessions in its trailing year.

Its 25-delta puts carry 0.81 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 9% below 30-day, which happens when the market prices something dated into the nearer expirations.

Its next earnings report is 2026-10-08 (estimated from its reporting cadence).

Across its last 3 reports the options market priced an average move of ±10.6% and DAL moved 11.2% on average, staying inside the priced band 2 times out of 3.

Current readings

30-day ATM implied volatilityⓘ
45.79%

Prices a move of about ±13.1% over 30 days, or ±2.9% on a typical day.

Higher than 68% of the past year.

25-delta risk reversalⓘ
+0.81

Puts carry 0.81 volatility points more than calls the same distance from the money.

Higher than 13% of the past year.

25-delta butterflyⓘ
+0.12

The wings carry 0.12 volatility points more than at-the-money.

Term structure slopeⓘ
0.905

90-day volatility is 9% below 30-day.

Higher than 21% of the past year.

Where 30-day implied volatility sits

Against 227 prior sessions (one-year window)

45.8% — 68th percentile
30.9%85.2%
IV percentile, 1 year
68%
IV rank, 1 year
27%
IV percentile, 2 years
68%
IV rank, 2 years
27%

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
$83.92
30-day implied forward
$84.05
60-day ATM IV
43.10%
90-day ATM IV
41.45%
180-day ATM IV
39.55%
Expirations used
12
Total open interest
398,283
Put / call open interest
0.33

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 228 sessions

20%40%60%80%100%30 Aug22 Nov19 Feb9 May22 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2245.79%+0.810.905$83.92
2026-09-2143.84%+3.430.923$82.50
2026-09-1843.82%+1.490.886$79.62
2026-09-1743.16%+1.160.927$79.43
2026-09-1645.80%+2.090.857$77.87
2026-09-1545.40%+0.760.894$78.89
2026-09-1442.79%+1.630.944$79.80
2026-09-1140.63%+2.760.918$79.91
2026-09-1039.75%+0.990.981$78.24
2026-09-0940.76%-0.300.914$78.75
2026-09-0837.99%+2.560.997$78.96
2026-09-0435.98%-1.361.029$80.17
2026-09-0334.06%+1.131.120$78.75
2026-09-0231.65%+2.311.202$78.14
2026-09-0139.96%+0.730.938$76.38
2026-08-3134.35%+3.061.095$78.00
2026-08-2834.60%-1.321.082$80.07
2026-08-2736.16%-0.651.060$81.14
2026-08-2635.99%+0.011.060$83.08
2026-08-2537.04%-0.481.023$83.62
2026-08-2436.76%+0.691.025$82.48
2026-08-2135.47%+0.381.105$82.41
2026-08-2034.15%-0.241.087$81.06
2025-06-3049.90%+3.010.877$49.18
2025-06-2753.21%+3.990.832$49.59
2025-06-2648.87%+4.900.884$48.97
2025-06-2549.37%+6.400.878$48.31
2025-06-2449.89%+6.940.878$49.56
2025-06-2352.36%+5.710.880$48.25
2025-06-2051.40%+2.930.890$47.20
2025-06-1851.21%+6.330.912$47.56
2025-06-1752.63%+5.730.884$47.32
2025-06-1648.71%+4.890.906$49.46
2025-06-1350.33%+6.860.910$47.04
2025-06-1248.03%+1.480.923$48.88
2025-06-1146.06%+4.780.965$49.17
2025-06-1044.99%+1.010.947$51.68
2025-06-0946.15%+1.500.945$51.20
2025-06-0641.01%+3.471.063$50.95
2025-06-0541.01%+4.121.089$48.84
2025-06-0442.97%+2.381.030$48.98
2025-06-0344.46%+0.661.026$48.83
2025-06-0242.82%+2.381.008$48.50
2025-05-3041.33%+4.641.066$48.39
2025-05-2941.91%+4.881.066$48.50
2025-05-2842.80%+7.991.030$48.60
2025-05-2743.70%+4.641.052$49.40
2025-05-2344.86%+2.541.045$47.92
2025-05-2243.65%+4.801.074$48.50
2025-05-2146.94%+3.860.988$48.27
2025-05-2045.25%+0.970.985$49.98
2025-05-1942.79%+3.011.026$51.19
2025-05-1642.68%+2.951.017$50.92
2025-05-1544.41%+5.690.988$50.28
2025-05-1445.81%+2.450.964$50.58
2025-05-1342.49%+3.761.001$52.99
2025-05-1242.42%+4.681.010$51.14
2025-05-0947.58%+5.360.979$48.34
2025-05-0848.39%+9.000.983$48.54
2025-05-0746.22%+7.231.054$45.30
2025-05-0650.51%-0.050.977$44.81
2025-05-0551.23%+8.180.971$45.51
2025-05-0247.88%+3.881.022$44.20
2025-05-0150.20%+7.230.990$41.50
2025-04-3050.37%+9.480.971$41.63
2025-04-2950.10%+6.820.988$42.08
2025-04-2849.82%+9.290.971$41.96
2025-04-2548.09%+8.721.010$41.58
2025-04-2449.42%+7.640.988$42.02
2025-04-2351.58%+9.980.994$41.40
2025-04-2254.22%+9.850.968$40.34
2025-04-2156.85%+11.800.985$39.47
2025-04-1751.40%+9.930.997$40.85
2025-04-1653.22%+11.930.981$40.59
2025-04-1552.94%+10.750.974$40.83
2025-04-1454.05%+11.241.001$40.30
2025-04-1163.35%+17.160.914$40.88
2025-04-1078.21%+15.710.809$39.36
2025-04-0957.88%+12.230.870$44.27
2025-04-0882.28%+22.080.862$35.88
2025-04-0785.18%+20.690.787$37.29
2025-04-0482.29%+14.440.847$37.25
2025-04-0362.82%+5.780.864$38.71
2025-04-0254.43%+6.780.900$43.37
2025-04-0156.01%+5.470.898$42.42
2025-03-3154.54%+5.380.890$43.60
2025-03-2852.02%+7.570.892$43.84
2025-03-2750.50%+5.990.862$46.15
2025-03-2648.52%+0.950.884$48.07
2025-03-2546.76%+6.670.885$48.67
2025-03-2446.19%+2.780.898$48.88
2025-03-2147.68%+5.190.899$46.77
2025-03-2046.77%+8.010.937$46.95
2025-03-1950.17%+6.870.872$47.75
2025-03-1852.45%+6.110.871$45.92
2025-03-1751.10%+4.250.885$46.89
2025-03-1455.40%+9.150.797$46.75
2025-03-1353.34%+11.460.928$43.92
2025-03-1259.62%+5.370.806$45.30
2025-03-1156.56%+10.280.876$46.68
2025-03-1065.18%+8.260.782$50.33
2025-03-0746.39%+8.730.979$53.28
2025-03-0649.32%+7.580.918$54.96
2025-03-0542.39%+8.871.015$56.77
2025-03-0445.78%+7.260.941$54.69
2025-03-0349.81%+3.870.940$58.45
2025-02-2844.38%+4.010.901$60.12
2025-02-2745.38%+0.570.932$59.75
2025-02-2643.18%+0.830.926$61.70
2025-02-2543.60%+6.940.949$61.79
2025-02-2443.20%+4.020.979$61.49
2025-02-2145.35%+6.120.942$60.00
2025-02-2041.10%+2.140.996$63.75
2025-02-1940.61%+1.870.984$65.04
2025-02-1841.39%+2.670.972$64.34
2025-02-1439.30%+2.851.009$65.39
2025-02-1340.14%+3.180.978$64.06
2025-02-1234.32%+4.721.090$66.33
2025-02-1135.38%+0.731.035$64.75
2025-02-1033.80%+3.931.073$66.19

The chart covers every session in the archive, 228 in total. The table lists the most recent 120.

25-delta risk reversal

Last 228 sessions

-10.00.010.020.030.030 Aug22 Nov19 Feb9 May22 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) · 10d (2026-10-02) · 17d (2026-10-09)

35%40%45%50%55%60%2026-09-25 (3d) — 5Δ C — IV 45.70%2026-09-25 (3d) — 10Δ C — IV 43.89%2026-09-25 (3d) — 15Δ C — IV 44.40%2026-09-25 (3d) — 20Δ C — IV 44.26%2026-09-25 (3d) — 25Δ C — IV 44.54%2026-09-25 (3d) — 30Δ C — IV 45.16%2026-09-25 (3d) — 35Δ C — IV 45.07%2026-09-25 (3d) — 40Δ C — IV 44.64%2026-09-25 (3d) — 45Δ C — IV 44.27%2026-09-25 (3d) — ATM — IV 43.90%2026-09-25 (3d) — 45Δ P — IV 43.79%2026-09-25 (3d) — 40Δ P — IV 43.99%2026-09-25 (3d) — 35Δ P — IV 44.30%2026-09-25 (3d) — 30Δ P — IV 44.86%2026-09-25 (3d) — 25Δ P — IV 45.32%2026-09-25 (3d) — 20Δ P — IV 45.23%2026-09-25 (3d) — 15Δ P — IV 45.20%2026-09-25 (3d) — 10Δ P — IV 45.88%2026-09-25 (3d) — 5Δ P — IV 47.72%3d2026-10-02 (10d) — 5Δ C — IV 42.78%2026-10-02 (10d) — 10Δ C — IV 39.81%2026-10-02 (10d) — 15Δ C — IV 38.77%2026-10-02 (10d) — 20Δ C — IV 38.49%2026-10-02 (10d) — 25Δ C — IV 40.16%2026-10-02 (10d) — 30Δ C — IV 41.28%2026-10-02 (10d) — 35Δ C — IV 41.46%2026-10-02 (10d) — 40Δ C — IV 41.38%2026-10-02 (10d) — 45Δ C — IV 41.33%2026-10-02 (10d) — ATM — IV 41.40%2026-10-02 (10d) — 45Δ P — IV 41.52%2026-10-02 (10d) — 40Δ P — IV 41.57%2026-10-02 (10d) — 35Δ P — IV 41.58%2026-10-02 (10d) — 30Δ P — IV 41.63%2026-10-02 (10d) — 25Δ P — IV 41.79%2026-10-02 (10d) — 20Δ P — IV 41.83%2026-10-02 (10d) — 15Δ P — IV 41.50%2026-10-02 (10d) — 10Δ P — IV 41.77%2026-10-02 (10d) — 5Δ P — IV 43.10%10d2026-10-09 (17d) — 20Δ C — IV 48.32%2026-10-09 (17d) — 25Δ C — IV 48.53%2026-10-09 (17d) — 30Δ C — IV 50.01%2026-10-09 (17d) — 35Δ C — IV 50.61%2026-10-09 (17d) — 40Δ C — IV 50.86%2026-10-09 (17d) — 45Δ C — IV 51.24%2026-10-09 (17d) — ATM — IV 50.91%2026-10-09 (17d) — 45Δ P — IV 51.09%2026-10-09 (17d) — 40Δ P — IV 51.52%2026-10-09 (17d) — 35Δ P — IV 51.33%2026-10-09 (17d) — 30Δ P — IV 51.72%2026-10-09 (17d) — 25Δ P — IV 51.36%2026-10-09 (17d) — 20Δ P — IV 51.86%2026-10-09 (17d) — 15Δ P — IV 52.16%2026-10-09 (17d) — 10Δ P — IV 53.78%17d10Δ 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
Delta3d10d17d
5Δ call45.70%42.78%—
10Δ call43.89%39.81%—
15Δ call44.40%38.77%—
20Δ call44.26%38.49%48.32%
25Δ call44.54%40.16%48.53%
30Δ call45.16%41.28%50.01%
35Δ call45.07%41.46%50.61%
40Δ call44.64%41.38%50.86%
45Δ call44.27%41.33%51.24%
ATM43.90%41.40%50.91%
45Δ put43.79%41.52%51.09%
40Δ put43.99%41.57%51.52%
35Δ put44.30%41.58%51.33%
30Δ put44.86%41.63%51.72%
25Δ put45.32%41.79%51.36%
20Δ put45.23%41.83%51.86%
15Δ put45.20%41.50%52.16%
10Δ put45.88%41.77%53.78%
5Δ put47.72%43.10%—

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-09-253$84.2443.90%45.32%44.54%+0.78+1.0318
2026-10-0210$84.2841.40%41.79%40.16%+1.63-0.4214
2026-10-0917$84.3850.91%51.36%48.53%+2.83-0.9620
2026-10-1624$84.0549.21%49.11%47.91%+1.19-0.7025
2026-10-2331$84.0545.33%45.93%45.18%+0.76+0.2323
2026-10-3038$84.2543.23%45.16%43.02%+2.14+0.8619
2026-11-2059$84.2243.19%42.59%42.01%+0.57-0.8914
2026-12-1887$84.6741.46%42.13%40.10%+2.03-0.3421
2027-01-15115$84.8541.41%42.45%39.77%+2.68-0.3023
2027-03-19178$85.1539.54%41.48%38.05%+3.42+0.2326
2027-06-17268$85.5739.77%40.84%38.85%+1.99+0.0823
2027-09-17360$86.9339.11%42.31%38.42%+3.89+1.2520

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

12 listed expirations produced a usable reading

35%40%45%50%55%2026-09-25 — 3 days — at-the-money IV 43.90%2026-10-02 — 10 days — at-the-money IV 41.40%2026-10-09 — 17 days — at-the-money IV 50.91%2026-10-16 — 24 days — at-the-money IV 49.21%2026-10-23 — 31 days — at-the-money IV 45.33%2026-10-30 — 38 days — at-the-money IV 43.23%2026-11-20 — 59 days — at-the-money IV 43.19%2026-12-18 — 87 days — at-the-money IV 41.46%2027-01-15 — 115 days — at-the-money IV 41.41%2027-03-19 — 178 days — at-the-money IV 39.54%2027-06-17 — 268 days — at-the-money IV 39.77%2027-09-17 — 360 days — at-the-money IV 39.11%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$84.2443.90%$84.3118
2026-10-0210 days$84.2841.40%$84.4814
2026-10-0917 days$84.3850.91%$84.8920
2026-10-1624 days$84.0549.21%$84.7225
2026-10-2331 days$84.0545.33%$84.7923
2026-10-3038 days$84.2543.23%$85.0719
2026-11-2059 days$84.2243.19%$85.5014
2026-12-1887 days$84.6741.46%$86.4221
2027-01-15115 days$84.8541.41%$87.1723
2027-03-19178 days$85.1539.54%$88.4626
2027-06-17268 days$85.5739.77%$90.6823
2027-09-17360 days$86.9339.11%$93.7420

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
45.79%
60 days
43.10%
90 days
41.45%
180 days
39.55%

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 228 sessions

0.600.801.001.201.4030 Aug22 Nov19 Feb9 May22 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

2026-10-08Time not statedEstimated from its reporting cadence

How the pricing has held up

Over the last 3 reports

Landed inside the implied band
2 of 3
67% — about 68% is what an exactly-priced event gives
Mean implied move
10.6%
Mean move that happened
11.2%
absolute

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2026-07-10Before the open———
2026-04-08Before the open———
2026-01-13Before the open———
2025-10-09Before the open———
2025-07-10Before the open———
2025-04-09Before the open14.7%+23.4%1.59×
2025-01-10Before the open10.0%+9.0%0.90×
2024-10-10Before the open7.3%-1.4%0.19×
2024-07-11Before the open———
2024-04-10Before the open———
2024-01-12Before the open———
2023-10-12Before 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.