could have gone from being penniless to being a millionaire in a short span of time. There was a run on the Securities Exchange Company, as some investors decided to pull out. Ponzi paid them and the run stopped. On July 24, 1920, The Boston Post printed a favorable article on Ponzi and his scheme that brought in investors faster than ever. At that time, Ponzi was making $250,000 a day. Ponzi's good fortune was increased by the fact that just below this favorable article, which seemed to imply that Ponzi was indeed returning 50% return on an investment after only 45 days, was a bank advertisement that stated that the bank was paying 5% returns annually. The next business day after this article was published, Ponzi arrived at his office to find thousands of Bostonians waiting to give him their money. Despite this reprieve, Post acting publisher Richard Grozier (who was running the paper in the absence of his father Edwin, its owner and publisher) and city editor Eddie Dunn were suspicious and assigned investigative reporters to look into Ponzi. He was also under investigation by Massachusetts authorities, and, on the day the Post printed its article, Ponzi met with state officials. He managed to divert the officials from checking his books by offering to stop taking money during the investigation, a fortunate choice, as proper records were not being kept. Ponzi's offer temporarily calmed the suspicions of the state officials. Collapse of the scheme On July 26, the Post started a series of articles that asked hard questions about the operation of Ponzi's money machine. The paper contacted Clarence Barron, the financial journalist who headed Dow Jones & Company, to examine Ponzi's scheme. Barron observed that though Ponzi was offering fantastic returns on investments, Ponzi himself was not investing with his own company. Barron then noted that to cover the investments made with the Securities Exchange Company, 160 million postal reply coupons would have to be in circulation. However, only about 27,000 actually were in circulation. The United States Post Office stated that postal reply coupons were not being bought in quantity at home or abroad. The gross profit margin in percent on buying and selling each IRC was colossal, but the overhead required to handle the purchase and redemption of these items, which were of extremely low cost and were sold individually, would have exceeded the gross