Investors usually see many Wall St. analysts issuing Buy ratings, but they often overlook or do not see when Wall St. analysts give lists of stocks to sell or when they have very cautious comments about companies. We review many fresh research calls to find great ideas from value stocks to growth stocks to dividend stocks. We are breaking out the negative analyst calls of stocks to sell as well cautious calls.

These are this Friday’s top analyst downgrades and cautious research notes from Wall St.

Applied Materials Inc. (NASDAQ: AMAT) was downgraded late on Thursday and the rating is still technically positive. S&P Capital IQ’s research team downgraded the largest semiconductor cap-ex player to Buy from the firm’s prior Strong Buy analyst rating.

Avalon Rare Metals Inc. (NYSEMKT: AVL) cut to Sector Perform from Sector Outperform by CIBC.

Coach Inc. (NYSE: COH) downgraded to Neutral from Outperform at R.W. Baird.

Texas Instruments Inc. (NASDAQ: TXN) was cut to Market Perform from Outperform by Raymond James.

Varian Medical Systems Inc. (NYSE: VAR) was downgraded to Sell from an already cautious Neutral rating at Citigroup.

We have shown the analyst calls of stocks to sell, and here are this morning’s top upgrades, downgrades and initiations from Wall St. analysts.