Preface

In August 2010, Cisco stock (ticker: CSCO) hovered just a few cents below $25. Several analysts identified the stock as a strong buy. They pointed to the rising demand for network infrastructure that, among other things, was being driven by explosive growth in online video gaming and Internet television. Cisco, they believed, would continue to dominate the consumer market while benefiting from a weak dollar and low manufacturing costs. They must have been wrong because the stock fell 15% when earnings were released on August 11. The price continued to decline until August 31, when it bottomed out at $19—24% below its previous high. About the time that everyone had given up and turned bearish, the stock began to rally. On November 10 the ...

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