Vladimir Tenev ( Bulgarian: Владимир Тенев; born 1986 or 1987) is a  Bulgarian-American billionaire entrepreneur who was the co-founder (with Baiju Bhatt) and CEO of Robinhood, a US-based financial services company.
Tenev was born in Bulgaria, and his parents migrated to the U.S. when he was five.
His parents both worked for the  World Bank. He attended  Thomas Jefferson High School for Science and Technology in  Fairfax County, Virginia.
He earned a degree in mathematics from
Stanford University, where he met Baiju Bhatt. He studied for a mathematics PhD at  UCLA, but dropped out to work with Bhatt. 
Tenev and Bhatt started a high-frequency trading company called Celeris. By January 2011 they abandoned it to create Chronos Research, which sold low-latency software to other trading firms and banks.
In 2013, Tenev and Bhatt co-founded the trading platform Robinhood.
Following a funding round in May 2018 which increased Robinhood's valuation to $6 billion, Tenev and Bhatt became billionaires.  
GameStop short squeeze
On January 28, 2021, Tenev defended Robinhood's decision to prevent users from buying stock or options in a variety of securities, notably
GameStop, during the GameStop short squeeze;    the decision had sparked widespread criticism from users of the app as well as politicians in both major American parties.  On February 18, 2021, Tenev testified before the  United States House Committee on Financial Services regarding Robinhood's role during the GameStop short squeeze.  Tenev came under heavy criticism from members of both parties and was criticized for struggling to provide answers to a number of questions.   
In the aftermath of the GameStop event, Tenev was interviewed by
Barstool Sports founder Dave Portnoy, who called Tenev "a rat and a liar."
Awards and recognition
Tenev was included in a Forbes' 30 Under 30 list in 2013.
He was invited to be the keynote speaker at UCLA's 2019 Math Commencement Ceremony. 
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