Island ECN

Island ECN was an early electronic communication network for trading U.S. equities, particularly Nasdaq securities. Established in 1996 by Jeff Citron and Joshua Levine, the company emerged from technology and trading work the founders had performed at Datek Securities. Its core innovation was to let market participants interact electronically and directly rather than relying on a human intermediary to match orders. Island therefore helped demonstrate how automated order matching, low trading fees, and widely distributed market data could challenge the operating model of traditional exchanges and older electronic networks. The company’s roots lay in the Watcher software developed by Citron and Levine at Datek. Watcher provided real-time Nasdaq quotations and electronic order capabilities through the Small Order Execution System, or SOES. In 1995, the system was expanded with a feature known as Jump Trades, which allowed users to bypass a Nasdaq intermediary and trade directly with one another. That experience informed Island’s design. Joshua Levine announced the new network on February 9, 1996, with a matching engine that was fully automated rather than dependent on human traders. Island’s market infrastructure included protocols and data services that later became influential in electronic trading. Its ITCH feed distributed information about trades executed on the system, while OUCH was used for order entry. Island made its data feed available without the restrictive access model associated with many established venues and charged substantially lower trading fees than Nasdaq. These choices appealed to active traders and technology-focused firms that needed fast, direct access to market liquidity. Growth was rapid. Automated Trading Desk, an early algorithmic trading firm based in South Carolina, was among Island’s early customers. By late 1996, Island reportedly accounted for nearly half of the trading conducted through Nasdaq’s SelectNet system and had processed approximately $22.1 billion in transactions during the July–September quarter cited by reference sources. By 1998, it had become the second-largest ECN after Instinet, with roughly one-fifth of the market. In the early 2000s, Island also became an important venue for high-frequency trading firms, including Getco and Tradebot. Island’s corporate structure changed as its relationship with Datek evolved. In October 1999, Jeff Citron was forced out at the request of Datek president Ed Nicoll, reportedly because Citron’s continuing association with Datek was considered a potential legal risk while Datek was under investigation by the U.S. Department of Justice. In December 2000, Island became a separate company from Datek and appointed Matt Andresen as chief executive officer. Instinet acquired Island Exchange in 2002. Following the acquisition, the trading platform was renamed Inet. The Island name consequently ceased to operate as an independent trading-network brand, although its technology, protocols, and market-structure innovations continued through the Inet platform and the broader electronic-trading infrastructure associated with Instinet. Island is significant less as a consumer-facing brand than as a formative institution in the development of automated U.S. equity markets and the later high-frequency-trading ecosystem.

Island ECN developed from the collaboration of trader Jeff Citron and software specialist Joshua Levine at Datek Securities. Before Island was formed, the pair worked on Watcher, a system that supplied real-time Nasdaq quotations and electronic order functionality through SOES. In 1995, they extended Watcher with Jump Trades, enabling users to transact directly with one another instead of routing through a Nasdaq intermediary. This work provided both the technical foundation and the market insight for a standalone electronic communication network. Levine announced Island on February 9, 1996. The system differed from older ECNs by using automated order matching rather than human market intermediaries. It also sought to make electronic trading more accessible through lower fees and broad availability of market information. Island distributed an electronic record of executions through the ITCH feed and used OUCH for order submission. The combination of direct matching, fast electronic communication, and accessible data made the platform attractive to active traders and emerging algorithmic firms. The network expanded rapidly after launch. Automated Trading Desk, an early algorithmic-trading company, was one of its first customers. By late 1996, Island reportedly handled nearly half of the activity on Nasdaq's SelectNet system. Reference material also attributes approximately $22.1 billion in transactions to the July–September 1996 period. By 1998, Island had become the second-largest ECN behind Instinet and represented approximately 20 percent of the market. During the early 2000s, its venue was used by high-frequency trading firms such as Getco and Tradebot, making Island an important early location for the development of systematic and latency-sensitive equity trading. Island's governance and corporate relationships changed near the end of the 1990s. In October 1999, Citron was removed at the direction of Datek president Ed Nicoll. The stated concern in the reference history was that Citron's relationship with Datek could create legal complications while Datek was being investigated by the U.S. Department of Justice. In December 2000, Island was separated from Datek as an independent company, with Matt Andresen becoming chief executive officer. Instinet acquired Island Exchange in 2002. After the transaction, the platform was renamed Inet. The acquisition folded Island's technology into Instinet and ended Island's life as a separately identified trading network. Its technical ideas—automated matching, direct electronic access, standardized order-entry and data protocols, and lower-cost execution—were nevertheless carried forward in the evolution of electronic equity markets. Island's historical importance lies in helping move U.S. stock trading away from intermediary-heavy processes toward software-driven market infrastructure.

• 2002

  Instinet acquires Island Exchange

  [1]Island ECNen.wikipedia.org

  Instinet purchases Island Exchange and renames the platform Inet.

• 2000

  Island becomes independent from Datek

  [1]Island ECNen.wikipedia.org

  Island separates from Datek and appoints Matt Andresen as chief executive officer.

• 1998

  Island becomes the second-largest ECN

  [1]Island ECNen.wikipedia.org

  Island reaches approximately 20 percent of the ECN market, ranking behind Instinet.

• 1997

  Island executes its first trades

  [1]Island ECNen.wikipedia.org

  The newly established network begins executing equity transactions.

• 1996

  Island is launched

  [1]Island ECNen.wikipedia.org

  Joshua Levine announces Island as an automated electronic communication network for U.S. equity trading.

• 1995

  Watcher is expanded with Jump Trades

  [1]Island ECNen.wikipedia.org

  The Datek-developed Watcher system gains functionality allowing users to trade directly with one another and bypass a Nasdaq intermediary.

A technology-led, low-cost alternative to traditional securities-execution intermediaries, emphasizing automated matching, direct participant interaction, open market-data distribution, and high-speed electronic access.

• Electronic trading platform · 1996

  Island automated order-matching system

  Island's core platform automatically matched buy and sell orders in U.S. equities. Its design removed the need for a human trader to perform the matching function and allowed participants to interact directly through electronic connectivity. The system was positioned as faster and less expensive than established execution arrangements and became particularly relevant to active Nasdaq traders and early algorithmic-trading firms.

• Market-data feed · 1996

  ITCH

  ITCH was Island's electronic feed for reporting trades executed on the network. The feed helped participants observe activity in the venue and reflected Island's preference for distributing market information electronically and with fewer access restrictions than traditional exchange environments.

• Order-entry protocol · 1996

  OUCH

  OUCH was Island's protocol for submitting orders to its automated matching system. It provided a machine-oriented interface suited to electronically connected traders and later became associated with the broader evolution of standardized, low-latency order-entry infrastructure.

• 1999

  Removal of Jeff Citron amid Datek legal concerns

  Jeff Citron was forced out at the request of Datek president Ed Nicoll. The cited history says the decision reflected concern that Citron's ties to Datek could create legal problems while Datek was under investigation by the U.S. Department of Justice.

  Source

Read more

• 2002

  Sell Island Exchange to InstinetM&A

  Background

  Island had become a significant electronic trading venue and was active in a market increasingly consolidated around major ECN operators.

  Action taken

  Instinet acquired Island Exchange and renamed the trading platform Inet.

  Aftermath

  Island ceased operating as an independent brand, while its platform and technology continued within Instinet's Inet business.

  Source

• 2000

  Separate Island from DatekStrategy

  Background

  Island's relationship with Datek changed after concerns surrounding Jeff Citron's association with Datek and the firm's legal situation.

  Action taken

  Island became a separate company from Datek and appointed Matt Andresen as chief executive.

  Aftermath

  The independent structure preceded Instinet's acquisition of Island Exchange in 2002.

  Source

• 1996

  Launch a fully automated ECNProduct launch

  Background

  Older electronic networks could still depend on human traders to match orders, while Nasdaq access involved intermediary systems and comparatively higher costs.

  Action taken

  Island introduced automated order matching, direct participant interaction, electronic trade reporting through ITCH, and order submission through OUCH.

  Aftermath

  The approach supported rapid growth and helped establish Island as one of the leading U.S. ECNs by the late 1990s.

  Source

1. 1Island ECNen.wikipedia.org