Compare · GLW vs IDT
GLW vs IDT
Side-by-side comparison of Corning Incorporated (GLW) and IDT Corporation (IDT): market cap, price performance, sector, and recent activity on the wire.
Summary
- GLW operates in Industrials, while IDT operates in Telecommunications - the two are in different parts of the market.
- GLW is the larger of the two at $161.49B, about 104.1x IDT ($1.55B).
- Over the past year, GLW is up 226.1% and IDT is up 7.8% - GLW leads by 218.3 points.
- GLW has been more active in the news (6 items in the past 4 weeks vs 5 for IDT).
- GLW has more recent analyst coverage (25 ratings vs 0 for IDT).
- Company
- Corning Incorporated
- IDT Corporation
- Price
- $170.91-8.94%
- $63.31+1.62%
- Market cap
- $161.49B
- $1.55B
- 1M return
- -4.53%
- +16.36%
- 1Y return
- +226.05%
- +7.79%
- Industry
- Telecommunications Equipment
- Telecommunications Equipment
- Exchange
- NYSE
- NYSE
- IPO
- News (4w)
- 6
- 5
- Recent ratings
- 25
- 0
Corning Incorporated
Corning Incorporated engages in display technologies, optical communications, environmental technologies, specialty materials, and life sciences businesses worldwide. The company's Display Technologies segment offers glass substrates for liquid crystal displays and organic light-emitting diodes used in televisions, notebook computers, desktop monitors, tablets, and handheld devices. Its Optical Communications segment provides optical fibers and cables; and hardware and equipment products, including cable assemblies, fiber optic hardware and connectors, optical components and couplers, closures, network interface devices, and other accessories for various carrier network applications. This segment also offers operator-grade distributed antenna systems; optical network evolution wireless platform; subscriber demarcation, connection and protection devices, various digital subscriber line passive solutions, and outside plant enclosures; and coaxial RF interconnects for the cable television industry and microwave applications. The company's Environmental Technologies segment offers ceramic substrates and filter products for emissions control in mobile, gasoline, and diesel applications. Its Specialty Materials segment manufactures products that provide material formulations for glass, glass ceramics, and fluoride crystals. The company's Life Sciences segment offers laboratory products comprising consumables, such as plastic vessels, specialty surfaces, cell culture media, and serum, as well as general labware and equipment under the Corning, Falcon, Pyrex, and Axygen brands. The company was formerly known as Corning Glass Works and changed its name to Corning Incorporated in April 1989. Corning Incorporated was founded in 1851 and is headquartered in Corning, New York.
IDT Corporation
IDT Corporation operates in the communications and payment industries in the United States and internationally. The company operates through two segments, Telecom & Payment Services, and net2phone. The Telecom & Payment Services Services segment offers national retail solutions, such as point of sale network; mobile top-up; and carrier services, as well as an international money remittance service and international long-distance calling service under the BOSS Revolution brand name. The net2phone segment provides Unified Communications as a Service, a cloud communications service for businesses; and cable telephony services under the net2phone brand name. IDT Corporation was founded in 1990 and is headquartered in Newark, New Jersey.
Latest GLW
- SEC Form 4 filed by Director Martin Kevin J
- SEC Form 4 filed by Director Ferguson Roger W. Jr.
- SEC Form 4 filed by Director Cummings Robert F Jr
- SEC Form 4 filed by Director Burns Stephanie
- Corning Announces Quarterly Dividend
- Senior Vice President & CHRO Gullo Michelle L covered exercise/tax liability with 18,378 shares, decreasing direct ownership by 49% to 19,258 units (SEC Form 4) (tax withholding)
- SEC Form 11-K filed by Corning Incorporated
- SEC Form 11-K filed by Corning Incorporated
- Chairman, CEO and President Weeks Wendell P exercised 100,000 shares at a strike of $27.03 and sold $18,646,070 worth of shares (100,000 units at $186.46) (SEC Form 4)
- SEC Form SD filed by Corning Incorporated
Latest IDT
- BOSS Money App Crowned #1 Digital Money Transfer Service for Second Consecutive Year
- NRSInsights’ June 2026 Retail Same-Store Sales Report
- Director Cosentino Eric F. sold $28,890 worth of Class B Common Stock (500 units at $57.78), decreasing direct ownership by 48% to 539 units (SEC Form 4)
- Chief Financial Officer Fischer Marcelo sold $1,329,024 worth of Class B Common Stock (23,323 units at $56.98), decreasing direct ownership by 42% to 32,824 units (SEC Form 4)
- Chairman Jonas Howard S gifted 2,217 units of Class B Common Stock, decreasing direct ownership by 5% to 46,553 units (SEC Form 4)
- Former Director Katsof Irwin sold $132,505 worth of Class B Common Stock (2,408 units at $55.03), closing all direct ownership in the company (SEC Form 4)
- IDT Corporation filed SEC Form 8-K: Leadership Update, Financial Statements and Exhibits
- Director Conkling William was granted 673 units of Class B Common Stock (SEC Form 4)
- New insider Conkling William claimed no ownership of stock in the company (SEC Form 3)
- IDT Corporation to Present at East Coast IDEAS Investor Conference