Short Interest in Solar Drops, Alt Energy Stocks Mixed

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Short interest moves among solar and alternative energy stocks were mixed during the two-week reporting period that ended on November 30. Of the companies we watch, short interest fell all three solar stocks and on two of four alternative energy stocks.

First Solar Inc. (NASDAQ: FSLR) saw short interest fall by 2.5% to 6.1 million shares, which represents about 7.9% of the company’s float. Days to cover rose from three to four. In the two-week short interest period, the stock’s share price rose by about 1%. The stock’s 52-week trading range is $25.56 to $71.80, and it closed at $70.05 on Monday, roughly flat. The 52-week high was also posted Monday.

SunPower Corp. (NASDAQ: SPWR) short interest decreased by 5.7% to 12.29 million shares, or 20.6% of the company’s float. In the two weeks to November 30, the share price dipped by about 1.3%. The stock’s 52-week range is $5.84 to $11.70, and it closed at $9.23 on Monday, down about 0.2% for the day. Days to cover rose from three to five.

Canadian Solar Inc. (NASDAQ: CSIQ) saw a decrease of 2.5% in short interest during the period. Some 7% of the total float, or 3.1 million shares, were short, and days to cover rose from two to four. The company’s share price rose by about 2.3% over the two weeks, and shares closed Monday at $17.79, up more than 3% for the day, in a 52-week range of $10.86 to $19.09.

FuelCell Energy Inc. (NASDAQ: FCEL) posted an increase of 5.7% in short interest during the period. Some 8.65 million shares were short as of November 30. The stock closed at $1.95 on Monday, down nearly 3.5% for the day, in a 52-week range of $0.80 to $2.49. Shares traded up about 0.6% in the short interest period, and days to cover rose from four to six.

Plug Power Inc. (NASDAQ: PLUG) saw short interest rise by 4% to 36.59 million shares. Days to cover rose from five to 11, and about 16.2% of the company’s shares were short. In the two weeks, the share price rose by about 4.4%. The stock’s 52-week range is $0.83 to $3.21, and shares closed Monday at $2.43, up about 0.8% for the day.

Clean Energy Fuels Corp. (NASDAQ: CLNE) saw a small decline of about 38% in short interest to 994,000 shares. About 0.7% of the company’s float was short, and days to cover rose from four to five. The share price jumped by about 10.4% in the final two weeks of November. The stock closed at $2.09 on Monday, up about 1.5% for the day, in a 52-week range of $1.96 to $3.50.

Pacific Ethanol Inc. (NASDAQ: PEIX) saw short interest fall by 14.8% in the two-week period to 910,000 shares, about 2.1% of the company’s float. Days to cover fell from three to two. The stock price added about 5.8% in the two weeks to November 30. Shares closed at $4.25 on Monday, down about 1.2% on the day, in a 52-week range of $4.10 to $10.25.