|Traded as||NASDAQ: OMKT|
|Founders||David B. Gifford and Shikhar Ghosh|
Open Market was an ecommerce software startup, founded in Cambridge, Massachusetts in early 1994. It went public in 1996 on the Nasdaq exchange under the symbol OMKT as one of the first ecommerce IPOs. The stock more than doubled on its first day of trading, ending with a $1.2 billion market capitalization. It relocated to Burlington, Massachusetts in early 1998.
Open Market was later acquired by Divine in 2001 for about $59 million. Divine later filed for bankruptcy in early 2003. In the same year, Soverain Software acquired Open Market's ecommerce assets, including the TRANSACT product. FatWire Software acquired Open Market's content management business from the Divine bankruptcy. FatWire has extended the Open Market software and currently services Open Market's original content management customer base. 
FatWire was acquired in 2011 by Oracle, and OpenMarket's content Management is now branded as Oracle WebCenter Sites.
Products and technology
Open Market developed a number of software products, including:
- Open Market Web Server: One of the first commercially available Web (HTTP) servers, and the first commercial product with a highly scalable threading architecture. The Secure Web Server variant added support for Secure HTTP (S-HTTP) and SSL.
- Transact: Open Market's eCommerce product. Notable for the use of cryptography to support digital offers and digital receipts with useful properties for eCommerce applications
- OM Express: An early offline web browser
- OM Axcess. a centralized access management tool for websites
- OM e-Business Suite: The WCM Software acquired from FutureTense and greatly extended
Open Market also invented FastCGI, a high-performance variant of the CGI interface. FastCGI was first implemented in Open Market's Web server products, but versions have since been developed for many other Web servers.
OpenMarket also owned the shopping cart patent that it had filled in 1994.
- Judge, Paul C. (May 31, 1998). "E Commerce: They've Got The Patents But So What?". Bloomberg. Retrieved June 29, 2016.
- C. Judge, Paul (November 1, 1999). "Where Is It Now? Open Market's Fall". Business Week. Retrieved 28 January 2013.
- Bussgang, Jeff (April 13, 2011). "What if it's 1996, not 1999?". VentureBeat. Retrieved June 29, 2016.
- Clark, Tim. "Open Market acquires Future Tense". CNET. Retrieved 28 January 2013.
- Cooper, Charles. "Perspective: Perspective: A Divine e-commerce "cashectomy"". CNET. Retrieved 28 January 2013.
- "Souverain – About Us". Souverain. Archived from the original on April 18, 2013. Retrieved 28 January 2013. Cite uses deprecated parameter
- "Ecommerce Outsourcing". Retrieved 15 September 2015.
- "FastCGI: A High-Performance Web Server Interface". Open Market, Inc. Retrieved 28 January 2013.
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