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Open Market

Logo: Open Market, Public domain, via Wikimedia Commons4

Massachusetts e-commerce company

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.3 It ceased to exist in 2003.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1994Founded1

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  • TickerOMKT on NASDAQ1
  • Industrye-commerce1
  • HeadquartersBurlington1
  • Incorporated inDE5
  • Business addressOne Wayside Road, Burlington, Ma 018035

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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 1998.3

Products and brands

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

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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 patents for the shopping cart filed in 1994, session identifiers filed in 1998, and credit card payments over the internet filed in 1998.

From Wikipedia’s article on Open Market, shared under CC BY-SA 4.0.6

Timeline

  1. 2003Dissolved Dissolved1
  2. 1994Founded Founded1

SEC filer profile

How Open Market is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGAROPEN MARKET INC2
  • CIK0000926019
  • Employer ID (EIN)04-32145362
  • Incorporated inDelaware2
  • Fiscal year endsDecember 312
  • Industry code (SIC)7372 Services-Prepackaged Software2
  • Business addressOne Wayside Road, Burlington, MA 018032
  • Phone78135930002
  • On EDGAR sinceMay 15, 19962
  • Filings103 in all: 8-K (21), 10-Q (16), 425 (6), S-3 (6), S-8 (6), SC 13G (6), 10-K (5), DEF 14A (5)2
    All 25 form types

    SC 13G/A (4), 10-Q/A (3), 424B1 (3), 424B3 (3), S-3/A (3), 10-K/A (2), POS AM (2), S-4/A (2), SC 13D (2), 15-12G (1), 424B4 (1), 8-A12G (1), 8-A12G/A (1), 8-K/A (1), PRE 14A (1), S-1/A (1), S-4 (1)

  • Latest filingsAnnual report (10-K) Apr 2, 2001
    Quarterly report (10-Q) Aug 14, 2001
    Proxy statement (DEF 14A) Apr 30, 2001
    Latest 8-K (8-K) Sep 17, 2001

Sources

The numbers on this page point here. Each one links to the record it came from.

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