Stocks were indicated to be marginally lower on Monday, but not so much that the direction of the day looked certain. What we saw in October, even during the sell-off and recovery to new highs, was that investors kept demonstrating an eagerness to buy value stocks and overlooked stocks when they find the opportunity. Each morning of the week, 24/7 Wall St. reviews dozens of analyst research reports on the hunt for new investment and trading ideas. Some analyst calls cover stocks to buy, and others cover stocks to sell or to avoid.

These are this Monday’s top analyst upgrades and downgrades featured by 24/7 Wall St.

Dendreon Corp. (NASDAQ: DNDN) was started as Neutral at Credit Suisse, although the firm have a target price of $1.50 (versus a $0.98 close), implying 50% upside, with no changes to the firm’s EPS estimates at this time.

Facebook Inc. (NASDAQ: FB) was started as Overweight with a $90 price target (versus a $74.99 close) at Morgan Stanley.

Google Inc. (NASDAQ: GOOGL) was started as Equal Weight with a $600 price target (versus $559.08 close) at Morgan Stanley.

Home Depot Inc. (NYSE: HD) was downgraded to Market Perform from Outperform at Raymond James.

Twitter Inc. (NYSE: TWTR) was started as Equal Weight with a $42 price target (versus a $41.47 close) at Morgan Stanley.

WisdomTree Investments Inc. (NASDAQ: WETF) was raised to Buy from Neutral at Citigroup. Friday we showed how this firm may be the top beneficiary of Japanese quantitative easing.