Independent options-market research
★
Menu
Stocks Expected Moves Volatility Earnings Market Dashboard Options Activity Screener Options Calculator News
Learn & Tools Learn Ask the Data AI Agents Methodology ★ Saved API
About About us Contact Disclaimer
View options
Dark mode

Guided View
New to markets? Prices, yields, YTD, market cap. We explain every term as you browse, in plain English. Same data, with the help built in.

Expert View
You already know the market. Just the data: clean, fast and compact, with no extra explanations. This is the default view.

Interface language
DATA API

Free read-only JSON access to summary metrics, rate-limited.

DDOG expected-move history Datadog, Inc.

Every trading day after the close we record what the options market was pricing — per expiration, before the outcome was known. When an expiration passes, the outcome is written next to the original estimate. Estimates are never revised after the fact. How to read these statistics · recording since Aug 31, 2026

Comparisons resolved121
Close inside range36%
|Actual| under expected36%
Avg expected move±8.9%
Avg |actual| move13.6%
Mean abs. error7.6pt

Implied vs realized, by expiration

For each expiration: the amber outline is the expected move recorded closest to expiry; the solid bar is what the stock actually did. Signed values are printed beneath the bars.

Sep 04+0.0%Sep 11+0.3%Sep 18-0.5%Sep 25+8.0%Oct 02+0.0%Oct 09+0.1%Oct 16+0.0%
expected (recorded)actual

Currently recorded (awaiting outcome)

SnapshotExpiresDTESpot thenExpected moveRangeMethod
Oct 19 Oct 23 4 260.36 ±5.9% 244.99–275.74 em-1.0
Oct 16 Oct 23 7 247.11 ±7.2% 229.28–264.94 em-1.0
Oct 14 Oct 23 9 269.33 ±7.4% 249.33–289.33 em-1.0
Oct 13 Oct 23 10 281.80 ±7.0% 262.00–301.60 em-1.0
Oct 09 Oct 23 14 293.00 ±8.2% 269.07–316.93 em-1.0
Oct 08 Oct 23 15 273.80 ±8.5% 250.65–296.95 em-1.0
Oct 07 Oct 23 16 271.53 ±9.3% 246.21–296.86 em-1.0
Oct 06 Oct 23 17 278.24 ±9.5% 251.81–304.67 em-1.0
Oct 05 Oct 23 18 276.39 ±9.6% 249.97–302.81 em-1.0
Oct 02 Oct 23 21 277.22 ±11.0% 246.77–307.67 em-1.0
Oct 01 Oct 23 22 276.46 ±11.8% 243.94–308.99 em-1.0
Sep 23 Oct 23 30 248.30 ±12.9% 216.38–280.23 em-1.0
Sep 22 Oct 23 31 249.28 ±13.0% 216.75–281.81 em-1.0
Sep 21 Oct 23 32 242.00 ±13.3% 209.78–274.23 em-1.0
Sep 18 Oct 23 35 231.10 ±13.2% 200.60–261.60 em-1.0
Sep 17 Oct 23 36 236.66 ±13.3% 205.29–268.04 em-1.0
Sep 16 Oct 23 37 234.70 ±14.1% 201.57–267.82 em-1.0
Sep 15 Oct 23 38 229.50 ±14.7% 195.88–263.13 em-1.0
Sep 14 Oct 23 39 230.38 ±14.9% 195.96–264.81 em-1.0
Sep 11 Oct 23 42 220.50 ±14.8% 187.85–253.16 em-1.0
Sep 10 Oct 23 43 223.63 ±15.6% 188.71–258.56 em-1.0
Sep 09 Oct 23 44 224.30 ±16.1% 188.13–260.48 em-1.0
Sep 08 Oct 23 45 209.89 ±15.9% 176.56–243.22 em-1.0
Sep 07 Oct 23 46 212.80 ±15.9% 179.05–246.55 em-1.0
Sep 04 Oct 23 49 212.93 ±15.8% 179.18–246.68 em-1.0
Sep 03 Oct 23 50 213.97 ±16.9% 177.75–250.19 em-1.0
Oct 19 Oct 30 11 260.36 ±8.8% 237.51–283.21 em-1.0
Oct 16 Oct 30 14 247.11 ±9.8% 222.86–271.36 em-1.0
Oct 14 Oct 30 16 269.33 ±9.7% 243.21–295.45 em-1.0
Oct 13 Oct 30 17 281.80 ±10.0% 253.60–310.00 em-1.0

Resolved snapshots

SnapshotExpiredExpectedActualInside range?Spot → close
Oct 16, 2026 Oct 16 ±1.4% +0.0% inside 247.11 → 247.11
Oct 14, 2026 Oct 16 ±4.4% -8.2% outside 269.33 → 247.11
Oct 13, 2026 Oct 16 ±4.0% -12.3% outside 281.80 → 247.11
Oct 09, 2026 Oct 16 ±5.6% -15.7% outside 293.00 → 247.11
Oct 08, 2026 Oct 16 ±6.1% -9.7% outside 273.80 → 247.11
Oct 07, 2026 Oct 16 ±6.9% -9.0% outside 271.53 → 247.11
Oct 06, 2026 Oct 16 ±6.7% -11.2% outside 278.24 → 247.11
Oct 05, 2026 Oct 16 ±7.2% -10.6% outside 276.39 → 247.11
Oct 02, 2026 Oct 16 ±8.1% -10.9% outside 277.22 → 247.11
Oct 01, 2026 Oct 16 ±9.3% -10.6% outside 276.46 → 247.11
Sep 23, 2026 Oct 16 ±11.3% -0.5% inside 248.30 → 247.11
Sep 22, 2026 Oct 16 ±11.4% -0.9% inside 249.28 → 247.11
Sep 21, 2026 Oct 16 ±11.7% +2.1% inside 242.00 → 247.11
Sep 18, 2026 Oct 16 ±11.5% +6.9% inside 231.10 → 247.11
Sep 17, 2026 Oct 16 ±11.8% +4.4% inside 236.66 → 247.11
Sep 16, 2026 Oct 16 ±12.5% +5.3% inside 234.70 → 247.11
Sep 15, 2026 Oct 16 ±13.1% +7.7% inside 229.50 → 247.11
Sep 14, 2026 Oct 16 ±13.2% +7.3% inside 230.38 → 247.11
Sep 11, 2026 Oct 16 ±13.4% +12.1% inside 220.50 → 247.11
Sep 10, 2026 Oct 16 ±14.2% +10.5% inside 223.63 → 247.11
Sep 09, 2026 Oct 16 ±14.8% +10.2% inside 224.30 → 247.11
Sep 08, 2026 Oct 16 ±14.5% +17.7% outside 209.89 → 247.11
Sep 07, 2026 Oct 16 ±14.4% +16.1% outside 212.80 → 247.11
Sep 04, 2026 Oct 16 ±14.4% +16.1% outside 212.93 → 247.11
Sep 03, 2026 Oct 16 ±15.2% +15.5% outside 213.97 → 247.11
Sep 02, 2026 Oct 16 ±15.6% +12.7% inside 219.20 → 247.11
Sep 01, 2026 Oct 16 ±16.2% +10.4% inside 223.89 → 247.11
Aug 31, 2026 Oct 16 ±15.7% +3.9% inside 237.92 → 247.11
Oct 09, 2026 Oct 09 ±0.9% +0.1% inside 293.00 → 293.26
Oct 08, 2026 Oct 09 ±2.7% +7.1% outside 273.80 → 293.26
Oct 07, 2026 Oct 09 ±3.3% +8.0% outside 271.53 → 293.26
Oct 06, 2026 Oct 09 ±4.3% +5.4% outside 278.24 → 293.26
Oct 05, 2026 Oct 09 ±4.7% +6.1% outside 276.39 → 293.26
Oct 02, 2026 Oct 09 ±5.5% +5.8% outside 277.22 → 293.26
Oct 01, 2026 Oct 09 ±6.9% +6.1% inside 276.46 → 293.26
Sep 23, 2026 Oct 09 ±9.7% +18.1% outside 248.30 → 293.26
Sep 22, 2026 Oct 09 ±9.8% +17.6% outside 249.28 → 293.26
Sep 21, 2026 Oct 09 ±9.6% +21.2% outside 242.00 → 293.26
Sep 18, 2026 Oct 09 ±10.1% +26.9% outside 231.10 → 293.26
Sep 17, 2026 Oct 09 ±10.3% +23.9% outside 236.66 → 293.26
Sep 16, 2026 Oct 09 ±11.3% +25.0% outside 234.70 → 293.26
Sep 15, 2026 Oct 09 ±11.8% +27.8% outside 229.50 → 293.26
Sep 14, 2026 Oct 09 ±12.0% +27.3% outside 230.38 → 293.26
Sep 11, 2026 Oct 09 ±12.0% +33.0% outside 220.50 → 293.26
Sep 10, 2026 Oct 09 ±12.9% +31.1% outside 223.63 → 293.26
Sep 09, 2026 Oct 09 ±13.5% +30.7% outside 224.30 → 293.26
Sep 08, 2026 Oct 09 ±13.2% +39.7% outside 209.89 → 293.26
Sep 07, 2026 Oct 09 ±13.2% +37.8% outside 212.80 → 293.26
Sep 04, 2026 Oct 09 ±13.2% +37.7% outside 212.93 → 293.26
Sep 03, 2026 Oct 09 ±13.8% +37.1% outside 213.97 → 293.26
Sep 02, 2026 Oct 09 ±14.3% +33.8% outside 219.20 → 293.26
Sep 01, 2026 Oct 09 ±14.9% +31.0% outside 223.89 → 293.26
Aug 31, 2026 Oct 09 ±14.5% +23.3% outside 237.92 → 293.26
Oct 02, 2026 Oct 02 ±0.7% +0.0% inside 277.22 → 277.22
Oct 01, 2026 Oct 02 ±2.8% +0.3% inside 276.46 → 277.22
Sep 23, 2026 Oct 02 ±7.5% +11.6% outside 248.30 → 277.22
Sep 22, 2026 Oct 02 ±7.6% +11.2% outside 249.28 → 277.22
Sep 21, 2026 Oct 02 ±7.9% +14.6% outside 242.00 → 277.22
Sep 18, 2026 Oct 02 ±8.3% +20.0% outside 231.10 → 277.22
Sep 17, 2026 Oct 02 ±8.7% +17.1% outside 236.66 → 277.22

Outcomes compare the recorded range with the closing price on expiration day. Method version shown per row where it differs; current: em-1.0.

Consumer Cyclical

ABNB · Airbnb, Inc.AMZN · Amazon.com, Inc.AZO · AutoZone, Inc.BABA · Alibaba Group Holding…BBY · Best Buy Co., Inc.BYD · Boyd Gaming CorporationCAVA · CAVA Group, Inc.CCL · Carnival Corporation & plc

ETF

ARKK · ARK Innovation ETFBITO · ProShares Bitcoin ETFDIA · State Street SPDR Dow…EEM · iShares MSCI Emerging…EFA · iShares MSCI EAFE ETFEWZ · iShares MSCI Brazil ETFFXI · iShares China Large-Cap ETFGDX · VanEck Gold Miners ETF

Technology

AAPL · Apple Inc.ADBE · Adobe Inc.AI · C3.ai, Inc.AMAT · Applied Materials, Inc.AMD · Advanced Micro Device…APP · AppLovin CorporationARM · Arm Holdings plc Amer…ASML · ASML Holding N.V.

Financial Services

AFRM · Affirm Holdings, Inc.ALL · The Allstate CorporationALLY · Ally Financial Inc.AXP · American Express CompanyBAC · Bank of America CorporationBLK · BlackRock, Inc.BX · Blackstone Inc.C · Citigroup Inc.

Industrials

AAL · American Airlines Gro…BA · The Boeing CompanyCAT · Caterpillar Inc.CMI · Cummins Inc.DAL · Delta Air Lines, Inc.DE · Deere & CompanyEMR · Emerson Electric Co.ETN · Eaton Corporation plc

Consumer Defensive

CELH · Celsius Holdings, Inc.CL · Colgate-Palmolive CompanyCOST · Costco Wholesale Corp…DG · Dollar General CorporationDLTR · Dollar Tree, Inc.EL · The Estée Lauder Comp…GIS · General Mills, Inc.HSY · The Hershey Company