Independent options-market research
Menu
Stocks Expected Moves Volatility Earnings Market Dashboard Options Activity Screener 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.

Vertex Pharmaceuticals Incorporated (VRTX)

Overview · Option chain · Volatility · Expected-move history · Earnings

Price (delayed) 557.96 +0.22%
Expected moveThe size of the up-or-down move the options market is pricing for a stock by a given date, read from option prices (the at-the-money straddle). It is a market-implied estimate, not a forecast. · Sep 18 ±4.8%
Expected range 522.31574.71
IV30Implied volatility interpolated to a constant 30-day horizon from the expirations around it, so different stocks and dates can be compared fairly.27.5%
IV percentileWhere this IV30 ranks across all securities we cover today (a cross-sectional comparison, not the stock's own history). 35/universe
P/C volumePut volume (or open interest) divided by call volume (or open interest). A descriptive activity measure — it does not by itself say what traders expect.1.89
P/C open interest0.95
Next earnings Nov 02

Cboe delayed options data · as of 00:39 UTC · Figures derived from the full chain (1,780 contracts, 14 expirations) · IV own-history percentile appears after 60 recorded days (4 so far)

Expected move — Sep 18, 2026 (15 days)

Methodology →

Read from option prices: the at-the-money straddle costs this much, so the market is pricing a move of about that size in either direction by this date. It is an estimate of movement, not a prediction of direction.

522.3574.7548.5 current

Options are pricing a move of about ±4.8% (range 522.31–574.71) by Sep 18, 2026. ATM straddle: 26.20 @ strike 550 · ATM IV: 27.5%.

Probability distribution

Model & assumptions →

The curve shows where a lognormal model, fed with current implied volatility, puts the range of outcomes at this expiration. Shaded: the expected-move band.

548.5522.3574.7
expected-move bandmodel density
Levelvs priceP(above)Model-estimated chance the stock finishes above a level at expiration, derived from current IV under a lognormal model with stated assumptions — an estimate, not a prediction.P(below)
493.66 -10% 96.9% 3.1%
521.08 -5% 81.4% 18.6%
548.51 +0% 48.9% 51.1%
575.94 +5% 18.4% 81.6%
603.36 +10% 4.1% 95.9%

Model-estimated probabilities of finishing above/below each level at expiration — estimates under stated assumptions, not predictions.

Probability explorer

Drag the slider to any level and see the model-estimated chance the stock finishes above or below it at the selected expiration.

P(finish above)
P(finish below)
P(touch, approx.)

Horizon: Sep 18, 2026 · lognormal model, zero drift — an estimate, not a prediction. Assumptions

ExpiresDTEDays to expiration, in calendar days.Implied moveATM IVOpen int.
Sep 04, 2026 1 ±2.0% 28.1% 2,353
Sep 11, 2026 8 ±3.4% 25.9% 569
Sep 18, 2026 15 ±4.8% 27.5% 9,354
Sep 25, 2026 22 ±5.8% 28.2% 765
Oct 02, 2026 29 ±6.4% 27.5% 695
Oct 09, 2026 36 ±7.2% 27.9% 105
Oct 16, 2026 43 ±7.9% 28.2% 3,222
Dec 18, 2026 106 ±12.7% 29.1% 5,858
Jan 15, 2027 134 ±14.8% 30.3% 11.4K
Mar 19, 2027 197 ±19.6% 33.1% 1,304

Open interest by strike — Sep 18

Where option positions are concentrated. Teal bars are calls, red bars are puts; the dashed line is the current price.

420.0460.0500.0520.0535.0555.0575.0595.0630.0680.0548.5
callsputs

Largest open-interest concentrations (all expirations ≤ 60 days): 420 P · 1,112330 P · 933470 P · 867460 P · 778550 C · 704

IV term structure

Volatility page →

At-the-money implied volatility for each expiration. A hump around a date often marks a scheduled event the market is pricing.

24%28%31%35%1d29d197d

When does open interest expire?

28%This month63%Later

Implied vs realized volatility

27.1%28.9%30.7%32.6%Aug 31Sep 03
IV30HV20

HV from our stored daily closes (annualized); IV30 interpolated from the chain. Method

Price, last 60 sessions

Track record

Full history →

Every trading day we record what the options market is pricing for each expiration — before the outcome is known. Once expirations start resolving, this section compares expected versus actual, and the record is never rewritten. Recording since Aug 31, 2026.

Past earnings reactions

Nov 24+6.1%Feb 25-3.0%May 25-10.2%Aug 25-18.9%Nov 25-0.9%Feb 26+6.6%May 26+0.1%Aug 26+0.3%
implied (when recorded)actual reaction

Avg |reaction| 3.7% · median 2.0% (20 reports) — two-session close-to-close window; definition

About Vertex Pharmaceuticals Incorporated

Vertex Pharmaceuticals Incorporated is a leading biotechnology firm primarily focused on the discovery, advancement, and marketing of innovative treatments, particularly for cystic fibrosis (CF). The company offers a range of approved medications for CF patients, including SYMDEKO/SYMKEVI, ORKAMBI, and KALYDECO, which target specific mutations within the cystic fibrosis transmembrane conductance regulator gene. Additionally, they provide TRIKAFTA for individuals with CF aged six years and older who possess at least one F508del mutation. Beyond its established CF therapies, Vertex maintains a robust and diverse clinical pipeline. This includes VX-864, currently in Phase 2 for alpha-1 antitrypsin (AAT) deficiency; VX-147, also in Phase 2, addressing APOL1-mediated focal segmental glomerulosclerosis (FSGS) and other serious kidney conditions; VX-880, a potential treatment for Type 1 Diabetes undergoing Phase 1/2 trials; VX-548, a NaV1.8 inhibitor in Phase 2 for various forms of acute, neuropathic, and musculoskeletal pain; and CTX001, which is in Phase 3 development for severe sickle cell disease (SCD) and transfusion-dependent beta-thalassemia (TDT). The company distributes its pharm

Healthcare · Biotechnology · NASDAQ · Profile: Financial Modeling Prep

Related securities — Healthcare

MRNA · IV 75.2%HIMS · IV 67.1%PFE · IV 19.9%UNH · IV 25.0%MDT · IV 25.6%LLY · IV 31.2%

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

Energy

BKR · Baker Hughes CompanyCCJ · Cameco CorporationCOP · ConocoPhillipsCVX · Chevron CorporationDVN · Devon Energy CorporationENPH · Enphase Energy, Inc.EOG · EOG Resources, Inc.ET · Energy Transfer LP