Some Shade Falls Over Solar Shares (WFR, C, AMAT, AONE, FSLR)

Shares in MEMC Electronic Materials Inc. (NYSE:WFR) have been downgraded from ‘Buy’ to ‘Hold’ by Citigroup (NYSE:C). MEMC makes crystalline polysilicon wafers used in some photovoltaic solar cells, and the market appears to be oversupplied for both this year and next.

Prices for polysilicon could fall by as much as 50%, which would really squeeze MEMC’s revenues and margins.

Another wafer maker, Applied Materials Inc. (NASDAQ:AMAT), got an upgrade from Citigroup, from ‘Hold’ to ‘Buy’. Applied also makes crystalline polysilicon wafers, but its thin-film products could easily pick up the slack if the market for polysilicon takes the expected tumble.

And while alternative energy shares were hot last week, primarily due to the IPO of A123 Systems Inc. (NYSE:AONE), things have cooled a bit today. Even A123 is down nearly 3% in early trading today.

Nearly all the solar players are moving downward this morning. MEMC is off about 3.5% to around $16.69, and First Solar, Inc. (NASDAQ:FSLR) is off nearly 3.75% to $149.15. The big winner so far is Applied Materials, which is up more than 3.25% to $13.53.

Paul Ausick