Fresh off its biggest Prime Day yet, the Whole Foods Market Inc. bid, and a slew of announcements including Amazon Wardrobe, Amazon.com Inc. was the subject of two investor calls Thursday that raised concerns that it is getting too big. In one case, hedge-fund manager Douglas Kass said government intervention could be imminent. “I am shorting Amazon today because I have learned that there are currently early discussions and due diligence being considered in the

legislative chambers in Washington DC with regard to possible antitrust opposition to Amazon’s business practices, pricing strategy and expansion announcements already made (as well as being aimed at expansion strategies being considered in the future,” wrote Kass, head of Seabreeze Partners Management. Kass said he is taking a short position on the stock, or a bet that it will fall. The investor said the stock could fall 10% overnight once the market gets wind of the talks. READ MORE