Mary Jo White took over the Securities and Exchange Commission with a back-to-basics plan to toughen enforcement and clear a backlog of regulations aimed at the last financial crisis.
Now White and the SEC may be confronting the next crisis: claims that the stock market is rigged. Ending her first year as SEC chairman, White faces a surge of pressure to rein in high-frequency traders portrayed as the stock market’s scalpers in Michael Lewis’s new book, “Flash Boys.”