Stockpickr Lists: Sirius, XM Rise on Whole Foods Ruling

Editor's Note: In this feature from Stockpickr, we highlight lists of stocks that have been upgraded by analysts, are experiencing activist situations or some other market moving events.

Rumors of the Day: Sirius Satellite Radio(SIRI Quote - Cramer on SIRI - Stock Picks) is up 4.4% and XM Satellite Radio(XMSR Quote - Cramer on XMSR - Stock Picks) is up 3.4% following news a federal judge rejected the Federal Trade Commission's move to block Whole Foods'(WFMI Quote - Cramer on WFMI - Stock Picks) takeover of Wild Oats(OATS Quote - Cramer on OATS - Stock Picks). The move gives investors hope the Sirius/XM deal could also pass muster.

Today's Hot List: Midwest Air(MEH Quote - Cramer on MEH - Stock Picks) signed a definitive merger agreement to be acquired by an affiliate of TPG Capital in a transaction valued at approximately $450 million. Under the terms of the agreement, each outstanding share of Midwest's common stock will be converted into the right to receive $17 per share in cash. The $17 offer tops a $16.50 offer from rival AirTran(AAI Quote - Cramer on AAI - Stock Picks). Midwest shares surged 86 cents at $15.56.

Analyst Downgrades: Goldman Sachs downgraded AutoNation(AN Quote - Cramer on AN - Stock Picks) to sell from neutral. The firm said it believes there is potential for additional earnings shortfalls stemming from pressure in the automotive retail space. It also lowered its price target for the stock to $21. Shares dipped 2 cents to $18.98.

Analyst Upgrades: Bear Stearns upgraded Autodesk(ADSK Quote - Cramer on ADSK - Stock Picks) from peer perform to outperform, and set a $52 target price. The firm said 3-D growth continues to improve, despite a disruption in the company's supply channel. The stock jumped $2.36 to $44.97.

Latest Activist Situations: In a regulatory filing on Acxiom(ACXM Quote - Cramer on ACXM - Stock Picks), large holder MMI Investments said it has determined not to solicit proxies in opposition of the proposed sale of the company to private equity firms Silver Lake and ValueAct Capital, for cash consideration of $27.10 per share. MMI said it opposed the deal based on poor conditions in the equity and debt markets. Shares gained 33 cents to $22.89.