Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.
What: Shares of telecom and diversified-media company Cablevision Systems
So what: Stocks often take a hit following the resignation of a CEO or CFO -- could Cablevision's COO really be that important? The short answer is "yes." Wall Street analyst Craig Moffett called Rutledge "the hands-down best executive in the cable business," while The Financial Times said he's "widely considered to be the company's most important executive." The resignation led to stock downgrades from Bank of America, Miller Tabak, and ISI Group.
Now what: It seems tough to put a good spin on this. Rutledge has been credited with navigating Cablevision through a tough competitive environment and helping the company spin off AMC Networks
In light of Rutledge's resignation, there was some speculation that the Dolan family may try to take the company private. For public-market shareholders, that could be a glimmer of good news, since the Dolans would most likely have to pay a premium to make that happen.
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Fool contributor Matt Koppenheffer owns shares of Bank of America but has no financial interest in any of the other companies mentioned. You can check out what Matt is keeping an eye on by visiting his CAPS portfolio, or you can follow Matt on Twitter, @KoppTheFool, or on Facebook. The Fool's disclosure policy prefers dividends over a sharp stick in the eye.