Options Skew Analytics

MDT options analytics

MDT · Stock

Data as of 23 September 2026 (end of day)

Some metrics unavailable for this session

MDT options are pricing a 30-day at-the-money volatility of 29.6%, a move of about ±8.5% over the next month. That is higher than 94% of the 191 sessions in its trailing year.

Its 25-delta calls carry 1.12 volatility points more than the puts, closer together than on 97% of the past year.

Its next earnings report is 2026-11-17 (estimated from its reporting cadence).

Across its last 4 reports the options market priced an average move of ±5.3% and MDT moved 3.5% on average, staying inside the priced band 3 times out of 4.

Current readings

30-day ATM implied volatilityⓘ
29.59%

Prices a move of about ±8.5% over 30 days, or ±1.9% on a typical day.

Higher than 94% of the past year.

25-delta risk reversalⓘ
-1.12

Calls carry 1.12 volatility points more than puts the same distance from the money.

Higher than 3% of the past year.

25-delta butterflyⓘ
+0.03

The wings carry about the same volatility as at-the-money.

Term structure slopeⓘ
1.021

90-day volatility is 2% above 30-day.

Higher than 52% of the past year.

Where 30-day implied volatility sits

Against 191 prior sessions (one-year window)

29.6% — 94th percentile
14.8%39.2%
IV percentile, 1 year
94%
IV rank, 1 year
61%
IV percentile, 2 years
94%
IV rank, 2 years
61%

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
$89.30
30-day implied forward
$88.62
60-day ATM IV
28.58%
90-day ATM IV
30.20%
180-day ATM IV
—
Expirations used
6
Total open interest
138,900
Put / call open interest
0.90

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 236 sessions

10%20%30%40%50%26 Aug6 Nov18 Feb9 May23 Sep
Show the underlying numbers (most recent 120)
Session30-day ATM IV25-delta RRTerm slopeClose
2026-09-2329.59%-1.121.021$89.30
2026-09-2227.41%-0.031.030$90.77
2026-09-2126.42%-0.951.033$91.75
2026-09-1825.28%+1.331.097$92.13
2026-09-1725.19%+0.131.078$92.77
2026-09-1625.29%-1.161.088$92.60
2026-09-15———$93.75
2026-09-1425.31%+1.100.936$93.80
2026-09-11———$90.96
2026-09-1024.59%-0.451.070$91.62
2026-09-09———$91.89
2026-09-0826.29%+0.451.048$92.39
2026-09-04———$94.17
2026-09-03———$93.10
2026-09-02———$92.18
2026-09-0126.85%-1.460.963$92.04
2026-08-3131.71%+0.86—$90.65
2026-08-2830.36%+0.200.916$91.23
2026-08-2729.53%-0.210.951$89.97
2026-08-2635.64%-1.730.789$92.02
2026-08-25———$91.14
2026-08-2428.07%+1.790.957$92.90
2026-08-21———$93.35
2026-08-2028.61%+1.880.964$92.30
2026-08-1929.63%+0.610.940$94.13
2026-08-1830.27%-2.880.921$92.09
2026-08-1729.82%-1.180.913$90.60
2025-06-30———$87.17
2025-06-2717.92%+2.201.114$86.02
2025-06-2619.36%+3.731.061$86.18
2025-06-2520.21%+2.791.022$85.97
2025-06-24———$86.08
2025-06-2320.06%+3.361.069$85.96
2025-06-20———$86.34
2025-06-18———$85.73
2025-06-1720.92%+3.671.045$86.17
2025-06-16———$87.92
2025-06-13———$87.27
2025-06-1219.38%+3.161.049$88.49
2025-06-1120.17%+4.051.018$88.06
2025-06-1020.00%+3.401.063$87.96
2025-06-0921.25%+0.851.103$87.45
2025-06-0619.47%+3.551.135$87.44
2025-06-0520.45%+5.001.031$87.00
2025-06-0421.11%+3.641.022$85.60
2025-06-0320.95%+2.651.045$85.54
2025-06-0221.48%+3.831.028$83.74
2025-05-3019.78%+3.621.053$82.98
2025-05-2920.94%+2.131.047$82.41
2025-05-2821.07%+3.961.025$81.24
2025-05-2720.29%+3.371.112$81.18
2025-05-2321.78%+4.710.974$80.68
2025-05-2220.95%+3.250.955$80.91
2025-05-2121.39%+4.631.045$84.41
2025-05-2025.92%+2.260.897$86.37
2025-05-1925.15%+3.520.900$86.97
2025-05-1624.82%+1.760.890$86.44
2025-05-1524.98%+5.260.886$86.11
2025-05-1425.21%+4.250.908$84.25
2025-05-1322.43%+3.110.963$85.11
2025-05-1223.86%+4.390.895$85.81
2025-05-0926.56%+4.290.879$83.48
2025-05-0826.56%+4.580.894$83.62
2025-05-0726.37%+4.230.900$83.16
2025-05-0628.49%+3.670.862$82.32
2025-05-0525.43%+4.970.915$83.45
2025-05-0224.56%+4.240.972$84.85
2025-05-0124.49%+6.480.972$83.56
2025-04-30———$84.76
2025-04-2925.17%+4.410.938$84.60
2025-04-2826.08%+6.590.902$84.04
2025-04-2526.56%+4.130.875$84.16
2025-04-2425.72%+6.370.972$84.30
2025-04-2326.50%+3.790.887$83.75
2025-04-2225.44%+4.640.939$83.37
2025-04-2127.19%+6.050.965$81.80
2025-04-1724.46%+5.201.023$82.60
2025-04-1626.62%+3.830.953$82.70
2025-04-15———$82.37
2025-04-1425.47%+6.430.997$84.22
2025-04-1135.34%+9.500.803$82.90
2025-04-1034.92%+11.780.852$82.54
2025-04-0926.06%+6.450.916$85.28
2025-04-08———$81.88
2025-04-0739.24%+8.650.871$83.15
2025-04-0437.99%+4.540.813$82.88
2025-04-0323.62%+4.590.966$87.89
2025-04-0221.92%+4.330.976$88.86
2025-04-0121.58%+2.951.001$88.49
2025-03-3120.78%+4.271.018$89.86
2025-03-2820.70%+2.861.039$87.63
2025-03-2719.89%+1.470.995$88.98
2025-03-2620.43%+2.860.994$88.23
2025-03-2521.68%+3.950.939$88.59
2025-03-2418.17%+3.561.053$90.13
2025-03-2118.32%+3.371.055$90.33
2025-03-2019.21%+3.431.036$91.22
2025-03-1918.95%+1.921.084$91.87
2025-03-1820.04%+2.791.004$92.21
2025-03-1718.48%+2.851.009$93.35
2025-03-1419.75%+2.671.022$93.07
2025-03-1321.87%+4.060.964$92.33
2025-03-1222.88%+2.480.960$91.51
2025-03-11———$93.28
2025-03-1023.63%+4.460.960$93.80
2025-03-0721.35%+3.690.966$94.50
2025-03-06———$93.13
2025-03-0522.27%-0.231.037$94.06
2025-03-04———$93.03
2025-03-0320.66%+4.090.966$94.30
2025-02-28———$92.02
2025-02-2721.06%+1.950.934$90.74
2025-02-26———$90.58
2025-02-2519.51%+2.430.976$90.48
2025-02-2418.81%+2.301.010$90.17
2025-02-2116.22%+0.371.139$89.94
2025-02-20———$87.94
2025-02-1917.03%+2.201.087$87.00
2025-02-1818.15%+1.311.057$86.07
2025-02-1425.51%+3.170.920$92.81

The chart covers every session in the archive, 236 in total. The table lists the most recent 120.

25-delta risk reversal

Last 236 sessions

-5.00.05.010.015.026 Aug6 Nov18 Feb9 May23 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) · 23d (2026-10-16) · 58d (2026-11-20)

24%26%28%30%32%34%2026-10-02 (9d) — 20Δ C — IV 27.64%2026-10-02 (9d) — 25Δ C — IV 27.15%2026-10-02 (9d) — 30Δ C — IV 26.96%2026-10-02 (9d) — 35Δ C — IV 26.86%2026-10-02 (9d) — 40Δ C — IV 26.80%2026-10-02 (9d) — 45Δ C — IV 26.76%2026-10-02 (9d) — ATM — IV 26.70%2026-10-02 (9d) — 45Δ P — IV 26.66%2026-10-02 (9d) — 40Δ P — IV 26.66%2026-10-02 (9d) — 35Δ P — IV 26.69%2026-10-02 (9d) — 30Δ P — IV 26.73%2026-10-02 (9d) — 25Δ P — IV 26.82%9d2026-10-16 (23d) — 25Δ C — IV 31.74%2026-10-16 (23d) — 30Δ C — IV 32.41%2026-10-16 (23d) — 35Δ C — IV 30.99%2026-10-16 (23d) — 40Δ C — IV 31.43%2026-10-16 (23d) — 45Δ C — IV 31.84%2026-10-16 (23d) — ATM — IV 30.37%2026-10-16 (23d) — 45Δ P — IV 30.51%2026-10-16 (23d) — 40Δ P — IV 29.75%2026-10-16 (23d) — 35Δ P — IV 29.70%2026-10-16 (23d) — 30Δ P — IV 29.46%2026-10-16 (23d) — 25Δ P — IV 29.56%23d2026-11-20 (58d) — 10Δ C — IV 29.61%2026-11-20 (58d) — 15Δ C — IV 28.97%2026-11-20 (58d) — 20Δ C — IV 28.26%2026-11-20 (58d) — 25Δ C — IV 27.52%2026-11-20 (58d) — 30Δ C — IV 26.81%2026-11-20 (58d) — 35Δ C — IV 26.38%2026-11-20 (58d) — 40Δ C — IV 26.51%2026-11-20 (58d) — 45Δ C — IV 27.72%2026-11-20 (58d) — ATM — IV 28.30%2026-11-20 (58d) — 45Δ P — IV 28.34%2026-11-20 (58d) — 40Δ P — IV 28.33%2026-11-20 (58d) — 35Δ P — IV 28.22%2026-11-20 (58d) — 30Δ P — IV 28.18%2026-11-20 (58d) — 25Δ P — IV 28.24%2026-11-20 (58d) — 20Δ P — IV 28.36%2026-11-20 (58d) — 15Δ P — IV 28.71%58d10Δ 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
Delta9d23d58d
10Δ call——29.61%
15Δ call——28.97%
20Δ call27.64%—28.26%
25Δ call27.15%31.74%27.52%
30Δ call26.96%32.41%26.81%
35Δ call26.86%30.99%26.38%
40Δ call26.80%31.43%26.51%
45Δ call26.76%31.84%27.72%
ATM26.70%30.37%28.30%
45Δ put26.66%30.51%28.34%
40Δ put26.66%29.75%28.33%
35Δ put26.69%29.70%28.22%
30Δ put26.73%29.46%28.18%
25Δ put26.82%29.56%28.24%
20Δ put——28.36%
15Δ put——28.71%

Wing readings by expiration

ExpirationDaysForwardATM IV25Δ put25Δ callRRButterflyQuotes
2026-10-029$88.4926.70%26.82%27.15%-0.33+0.287
2026-10-1623$88.5130.37%29.56%31.74%-2.18+0.2813
2026-11-2058$89.0628.30%28.24%27.52%+0.72-0.4210
2026-12-1886$88.7930.92%28.58%27.60%+0.98-2.8310
2027-01-15114$88.6826.74%28.81%25.86%+2.95+0.609
2027-03-19177$89.5429.84%28.79%27.55%+1.24-1.6714

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

6 listed expirations produced a usable reading

26%28%30%32%2026-10-02 — 9 days — at-the-money IV 26.70%2026-10-16 — 23 days — at-the-money IV 30.37%2026-11-20 — 58 days — at-the-money IV 28.30%2026-12-18 — 86 days — at-the-money IV 30.92%2027-01-15 — 114 days — at-the-money IV 26.74%2027-03-19 — 177 days — at-the-money IV 29.84%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$88.4926.70%$88.577
2026-10-1623 days$88.5130.37%$88.7613
2026-11-2058 days$89.0628.30%$89.6310
2026-12-1886 days$88.7930.92%$89.7910
2027-01-15114 days$88.6826.74%$89.689
2027-03-19177 days$89.5429.84%$91.4914

Constant maturities

Interpolated between the bracketing listed expirations, in total variance

30 days
29.59%
60 days
28.58%
90 days
30.20%
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 236 sessions

0.600.801.001.201.4026 Aug5 Nov18 Feb8 May23 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

2026-11-17Time not statedEstimated from its reporting cadence

How the pricing has held up

Over the last 4 reports

Landed inside the implied band
3 of 4
75% — about 68% is what an exactly-priced event gives
Mean implied move
5.3%
Mean move that happened
3.5%
absolute

Reports

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

ReportSessionImplied ±RealisedRealised / implied
2026-09-01Before the open6.7%+1.5%0.23×
2026-06-03Before the open———
2026-02-17Before the open———
2025-11-18Before the open———
2025-08-19Before the open———
2025-05-21Before the open5.7%-2.3%0.40×
2025-02-18Before the open4.1%-7.3%1.79×
2024-11-19Before the open4.7%-3.0%0.63×
2024-08-20Before the open———
2024-05-23Before the open———
2024-02-20Before the open———
2023-11-21Before 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.