According to publicly available hedge fund and institutional investor holdings data compiled by Insider Monkey, GAMCO Investors, managed by Mario Gabelli, holds the number one position in Superior Industries International Inc. (NYSE:SUP). GAMCO Investors has a $35.7 million position in the stock, comprising 0.2% of its 13F portfolio. On GAMCO Investors's heels is Royce & Associates, managed by Chuck Royce, which holds a $13.2 million position; 0.1% of its 13F portfolio is allocated to the company. Some other members of the smart money that are bullish consist of Jim Simons's Renaissance Technologies, and Israel Englander's Millennium Management. As industrywide interest jumped, key money managers were leading the bulls' herd. Citadel Investment Group, managed by Ken Griffin, initiated the most outsized position in Superior Industries International Inc. (NYSE:SUP).