Daniel Ivandjiiski

Ivandjiiski decided that he, and all other Zero Hedge contributors, would blog under the collective pseudonym "Tyler Durden" (a character from the book Fight Club). Zero Hedge was immediately popular, growing its traffic of monthly user sessions to over 1 million in its first year (by 2018 it would be over 40 million monthly user sessions, and ranked as the 507th largest website in the U.S.). In March 2011, Time Magazine ranked Zero Hedge as 9th in its 25 Best Financial Blogs.

On 29 April 2016, an ex-employee of Zero Hedge, Colin Lokey, who had joined a year earlier in 2015 from Seeking Alpha, gave an interview to Bloomberg, revealing Ivandjiiski, and San Francisco-based credit trader Tim Backshall, as the main force behind Zero Hedge. The article confirmed various details about Daniel Ivandjiiski, including that he lives in a mansion in Mahwah, New Jersey, Lokey saying: "These two guys, who live a lifestyle you only dream of, are pretending to speak for you." On 30 September 2016, Ivandjiiski responded to the Bloomberg exposé, in a Zero Hedge article.

In September 2007, before the FINRA ruling, Ivandjiiski moved to the Connecticut-based hedge fund Wexford Capital LLC, run by former Goldman Sachs traders. After the FINRA ruling, Ivandjiiski left Wexford Capital, and within a few weeks posted his first blog on the Zero Hedge site at 4pm on 9 January 2009.

In September 2009, some New York newspapers identified Daniel Ivandjiiski as the founder of Zero Hedge, and made various assertions regarding Ivandjiiski's background, particularly his Bulgarian citizenship, his FINRA charge and lifetime ban from securities trading, and his father, Krassimir Ivandjiiski's, own controversial news and political website, Strogo Sekretno (Bulgarian: Строго секретно ; English "Top Secret"), and Krassimir's position in the pre-1990 Bulgarian-Soviet administration".

While at Miller Buckfire, Ivandjiiski was charged by FINRA of gaining USD 780 from an insider trade on 14–15 March 2006. On 3 September 2008, FINRA reached their decision, published on 11 September 2008, that Daniel K. Ivandjiiski was to be barred from acting as a broker or otherwise associating with a broker-dealer firm, and from being a FINRA member. Ivandjiiski had not turned 30 at that time, and did not appeal the FINRA decision.

Daniel Ivandjiiski graduated from the American College of Sofia in 1997, and then moved to the United States where he studied molecular biology at the University of Pennsylvania, to pursue a career in medicine, until 2001. In July 2001, he joined New York investment bank, Jefferies & Co. He passed his securities exams in November 2001 (Series 7 and Series 63). In October 2004, he joined Los Angeles-based investment bank Imperial Capital LLC, before moving back to New York in May 2005 to join investment bank Miller Buckfire LLC.

Daniel Ivandjiiski (Bulgarian: Данаил Иванджийски , born 8 November 1978) is a Bulgarian-born, U.S.-based former investment banker and capital-markets trader, and currently financial blogger, who founded the website Zero Hedge in January 2009, and remains its main publisher and editor.

Daniel Ivandjiiski was born in Sofia, Bulgaria, on 11 August 1978. His father is the publicist and political news editor Krassimir Ivandjiiski. An 2020 article on Ivandjiski in The New Republic described him as a "wonderkind" who could speak several languages and was an virtuoso pianist. Apart from a brief period when Daniel worked for Los Angeles-based investment bank, Imperial Capital LLC, he has spent most of his time since entering the U.S. in 1997, living in the New York/New Jersey area. He was married to Blair A. Kress, and Bloomberg reported in 2016 that they lived in Mahwah, New Jersey; divorce was filed by Kress in 2018 citing "irreconcilable differences".