[5] Greenlight generated greater than a twenty-five percent annualized net return for its investors until 2007, but lackluster results later brought this to under fifteen percent [3] It prospered in its early days by identifying weak financial firms for short selling, making significant gains from Conseco, CompuCredit, Sirrom Capital, and Resource America.

[3] In the third quarter of 2008, Greenlight lost 15% of its value,[6] primarily from long positions on industrial companies like Helix Energy Solutions,[6][7] when the SEC temporarily banned short selling of financial stocks.

[8] With the majority of Greenlight's money in bonds and long positions on stocks, this stopped hedge funds minimizing 'long' losses or offsetting them with short gains.

[17] As of 2019, the top equity holdings of the firm were in the shares of the following companies: Green Brick Partners, Brighthouse Financial, Ensco, General Motors, Exela Technologies, CONSOL Coal Resources, and Altus USA.

[19] In 2009, Greenlight Capital donated $7.2 million to three charities: Tomorrows Children's Fund, the Center for Public Integrity (CPI) and the Project on Government Oversight (POGO).

[22][23] Fishback said that in the two-and-a-half years he worked at Greenlight Capital, he was promoted twice; first from research analyst to trader and then to head of macro, having generated a total $100 million in profits for the New York fund during his tenure.

[25] On June 25, 2024 Greenlight Capital filed a suit in New York Court that the ongoing case with James Fishback over his job title is hurting its business.

[26] On August 22, 2024 the Foundation of Individual Rights and Education found that the University of Florida violated the First Amendment when Greenlight Capital demanded it to take action against a school club that had advertised James Fishback as the “Head of Macro”.