MEMC's Interest Coverage ratio of 1.98 and Quick Ratio of 1.07 indicates that its debt repayment capabilities are sound. The percentage of outstanding MEMC Electronic Materials, Inc. (NYSE:WFR) stocks that are owned by institutional investors is a solid 79%, with 222 financial institution holding the MEMC stock. Competition MEMC is highly focused on the fast-growing North American market and it is already the market share leader in North America in the areas of solar installation, utility services and distributed generation. Its biggest competitors in the solar space include SunPower Corporation (NASDAQ:SPWR), First Solar, Inc. (NASDAQ:FSLR), LDK Solar Co., Ltd (ADR) (NYSE:LDK). SunPower Corporation (NASDAQ:SPWR) designs and manufactures solar electric systems for residential, commercial, and utility-scale power plant customers worldwide.