His more personal work, "Four Friends," offers insight into the lives of four high school companions and was published by Flatiron Press in July 2019.
His latest endeavour, "Power Failure: The Rise and Fall of an American Icon," released in November 2022, chronicles the remarkable ascent and sudden decline of the General Electric Company, once revered as the world's most valuable and esteemed corporation.
[4] Formerly serving as a special correspondent at Vanity Fair, Cohan co-founded Puck, a daily digital news and opinion platform, where his focus remains on Wall Street and broader business matters.
[7][8][9] Cohan's second article caused congressional representatives Ted Lieu and Kathleen Rice to call for a federal investigation, but several experts interviewed by Bloomberg News questioned the evidence, while Cohan stood by the article but distanced himself from the implied conclusion ("I don’t make any allegations, I don’t know what really happened").
[10] Writing in Slate, Felix Salmon called Cohan's articles "bullshit", arguing that he had no evidence that the trades in question were unusual, or that they had yielded the alleged profits, or that insider knowledge had been involved at all.
[9] Further, Terry Duffy, the CEO of CME Group, the company that operates the exchange where the futures are traded, questioned Cohan's understanding of the data: “[Cohan] mistakenly summed up all volume for those derivatives during spans of time and implausibly attributed that buying and selling, spread across thousands of transactions, to a single bad actor or group of cheaters.