US Stocks Starting with O
As of October 23, 2026, 229 stocks starting with O are available to invest in on INDmoney.
Every US listed company whose name begins with O, sorted alphabetically. Open a stock to see its share price, chart and fundamentals.
Stocks starting with O
229
Last updated
October 23, 2026 at 11:43 pm IST
Top US Stocks Starting with O (Sorted by Market Cap)
Top 10 by market capitalisation
| # | Stock | Price ($) | 1D | 1Y | Volume | Market cap |
|---|---|---|---|---|---|---|
| 1 | 127.61 | +1.65% | -55.18% | 11.42M | $396.53B | |
| 2 | 45.27 | -0.19% | +74.98% | 88.48K | $102.16B | |
| 3 | 90.36 | -1.78% | -6.38% | 1.38M | $72.16B | |
| 4 | 64.15 | +2.64% | +45.76% | 8.12M | $62.68B | |
| 5 | 96.05 | +2.29% | +34.6% | 1.02M | $58.7B | |
| 6 | 15.92 | -1.85% | -1.04% | 699.09K | $42.11B | |
| 7 | 39.66 | +0.61% | +44.24% | 87.2K | $41.07B | |
| 8 | 183.59 | -3.32% | +39.77% | 860.34K | $39.05B | |
| 9 | 36.42 | -0.82% | +45.95% | 163.85K | $37.83B | |
| 10 | 212.32 | +5.46% | +127.36% | 1.58M | $36.47B |
All US Stocks Starting with O
Sorted A to Z by company name
- O'Reilly Auto
- O-I Glass
- Oak Valley Bancorp [Ca]
- Oaktree Acquisition Corp. III Life Sciences Class A
- Oaktree Acquisition Corp. III Life Sciences Unit
- Oaktree Acquisition Corp. III Life Sciences Warrants
- Oaktree Specialty Lending
- Oatly Group
- OBOOK Holdings, Inc. Class A
- Obra High Grade Structured Products ETF
- Obra Opportunistic Structured Products ETF
- ObsEva
- Obsidian Energy
- Obsidian Therapeutics
- OCADO GROUP PLC (ADR)
- Occidental Petroleum
- Occidental Petroleum Corporation Warrants
- Ocean Biomedical
- Ocean Capital Acquisition Corporation
- Ocean Capital Acquisition Corporation Rights
- Ocean Capital Acquisition Corporation Units Warrants
- Ocean Capital Acquisition Corporation Warrants
- Ocean Power Technologies
- OceanaGold
- Oceaneering International
- Oceanfirst Financial
- Oceanhawk Acquisition
- Oceanhawk Acquisition Corp. Rights
- Oceanhawk Acquisition Corp. Units
- OceanLight Acquisition Corp
- OCEANLIGHT ACQUISITION CORP RT EXP 070931
- OCEANLIGHT ACQUISITION CORP WT EXP 070931
- OceanLight Acquisition Corporation Units
- OceanPal Inc
- Oconee Federal Financial
- Octave Intelligence
- Octave Specialty Group
- Ocugen
- Ocular Therapeutix
- Oculis Holding
- Oculis Holding AG Warrants
- ODDITY Tech Ltd. Class A
- Odysightai
- Odyssey Marine Exploration
- Odyssey Therapeutics, Inc.
- OFA Group
- Offerpad Solutions
- Office Properties Income Trust
- OFG Bancorp
- OFS Capital
- OFS Capital Corporation 4.95% Notes due 2028
- OFS Capital Corporation 7.50% Notes due 2028
- OFS Credit Company
- OFS Credit Company Inc. 5.25% Series E Term Preferred
- OGE Energy
- Ohio Valley Banc
- Ohmyhome Limited
- Oil States International
- Oil-Dri Of America
- OIO Group
- OIO Group Warrants
- Okeanis Eco Tankers Corp.
- Oklo Inc
- Okta
- OKYO Pharma Limited Sponsored ADR
- OLB Group
- Old Dominion Freight
- Old Market Capital
- Old National Bancorp Capital
- Old National Bancorp Series A Preferred
- Old National Bancorp Series C Preferred
- Old Republic International
- Old Second Bancorp
- Olema Pharmaceuticals
- Olenox Industries
- Olin
- Ollie's Bargain Outlet Holding
- Omada Health, Inc.
- Omega Flex
- Omega Healthcare
- Omeros
- OmniAb
- OmniAb Inc. Warrants
- Omnicell
- Omnicom Group
- OMNIQ Corp
- Omron Corporation Sponsored (ADR)
- OMS Energy Technologies Inc.
- On Holding AG
- ON Semiconductor
- Once Upon a Farm, PBC
- Oncolytics Biotech
- Onconetix
- OncoSec Medical
- Ondas
- One and one Green Technologies Inc Class A
- ONE Gas
- One Liberty Properties
- One Stop Systems
- OneConstruction Group Limited
- OneIM Acquisition Corp. Class A
- OneIM Acquisition Corp. Units
- OneIM Acquisition Corp. Warrants
- OneMain Holdings
- OneMedNet
- OneMedNet Corp Warrants
- Oneok
- OneSpan
- OneSpaWorld Holdings
- OneWater Marine
- Onfolio Holdings Inc. Warrants
- Onfolio Holdings, Inc.
- Onion Global
- Onity Group
- OnKure Therapeutics
- Onterris
- Onto Innovation
- Ontrak
- ONTRAK INC CUM RED PFD SER A 9.50%
- Ooma
- OP Bancorp
- OPAL Fuels
- Open Text
- Opendoor Technologies
- Opendoor Technologies Inc Series A Warrants
- Opendoor Technologies Inc Series K Warrants
- Opendoor Technologies Inc Series Z Warrants
- OPENLANE
- OpenWorld Inc
- Opera
- Opko Health
- Oportun Financial
- Oppenheimer Holdings
- OppFi
- Optex Systems Holdings
- Optical Cable
- Optimi Health
- Optimize Strategy Index ETF
- OptimizeRx
- Optimum Communications Inc Class A
- Optimumbank Holdings
- Option Care Health
- Opus Genetics
- OR Royalties
- Oracle
- Oracle Corporation 6.50% Series D Preferred
- Oragenics
- Oramed Pharm
- Orange County Bancorp
- Orange SA
- Orangekloud Technology Inc. Class A
- Orasure Technologies
- Orchestra BioMed Holdings
- Orchid Island Capital
- Organigram Global
- Organogenesis Holdings
- Organon
- Orgenesis
- Oric Pharmaceuticals
- Oriental Culture Holding
- Oriental Rise Holdings Ltd
- Origin Agritech
- Origin Bancorp
- Origin Investment Corp I
- Origin Investment Corp I Units
- Orion Digital
- Orion Energy Systems
- Orion Group Holdings
- Orion Office REIT
- Orion SA
- Orion180 Insurance Group
- Orix
- ORKLA A S SPONSORED ADR
- Ormat Techno
- Orrstown Financial Services
- Orsted
- Orthofix Medical
- OrthoPediatrics
- Oruka Therapeutics
- OS Therapies Incorporated
- Oscar Health
- Oshkosh
- OSI Systems
- Osisko Gold Group Inc
- Osisko Gold Group Inc. Warrant expiring 5/27/2027 Warrants
- OSPREY ACQUISITION CORP-CL A
- Osprey Acquisition Corp. III
- Osprey Acquisition Corp. III Units
- OSR Health Inc. Warrants
- OSR Holdings
- Ostin Technology Group Co., Ltd.
- OTG Acquisition Corp. I Class A
- OTG Acquisition Corp. I Unit
- OTG Acquisition Corp. I Warrants
- Otis Worldwide
- Otsuka Holdings Co
- Otter Tail
- Our Bond Inc
- Oura Inc.
- Ouster
- Outcrop Gold Corp
- Outdoor Holding Company 8.75% Series A Preferred
- Outfront Media
- Outlook Therapeutics
- Outset Medical
- Oversea-Chinese Banking Corporation Ltd Unsponsored ADR (Singapore)
- Ovid Therapeutics
- Ovintiv
- Owens Corning
- Owlet
- Oxbridge Re Holdings
- Oxford Industries
- Oxford Lane Capital
- Oxford Lane Capital Corp. 5.00% Notes due 2027
- Oxford Lane Capital Corp. 6.00% Preferred
- Oxford Lane Capital Corp. 6.75% Notes due 2031
- Oxford Lane Capital Corp. 7.125% Series 2029 Term Preferred
- Oxford Lane Capital Corp. 7.95% Notes due 2032
- Oxford Lane Capital Corp. 8.25% Preferred
- Oxford Lane Capital Corp. 8.75% Notes due 2030
- Oxford Square Capital
- Oxford Square Capital Corp. 5.50% Notes due 2028
- Oxford Square Capital Corp. 7.75% Notes due 2030
- Oxley Bridge Acquisition Limited Class A
- Oxley Bridge Acquisition Limited Unit
- Oxley Bridge Acquisition Limited Warrants
- Oyster Enterprises II Acquisition Corp Class A
- Oyster Enterprises II Acquisition Corp Rights
- Oyster Enterprises II Acquisition Corp Units
About this list
This page covers US listed companies whose names start with O. It is part of the INDmoney US stock directory, which lists every US stock letter by letter, from A to Z.
Each company links to its own page with the latest share price, price chart and key fundamentals.
Frequently asked questions
How many US stocks start with O?
229 US listed stocks start with O, as of October 23, 2026.
Are all US stocks that start with O listed on this page?
Yes. This page lists every US listed stock available on INDmoney whose company name starts with O, sorted alphabetically. The list updates when a company is newly listed, renamed or delisted.
Which US stock that starts with O has the highest market cap?
Oracle has the highest market capitalisation among US stocks that start with O, at $396.53B, as of October 23, 2026.
How is this list ordered?
Stocks are sorted alphabetically by company name. The table near the top shows the 10 largest by market capitalisation.
How can I find US stocks that start with other letters?
Use the letter bar at the top of the page to move to any letter from A to Z, or open Others for names that start with a number. To browse every letter on one page, choose All.
How can I buy these US stocks on INDmoney?
Open any stock from this list to see its share price and details, then place an order from the stock page. You can invest in US stocks from India with an INDmoney US stocks account.