Shares Plunged: What You Need to Know

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 e-commerce king (NAS: AMZN) are plunging today, down by as much as 12% after the company reported earnings last night that fell short of expectations.

So what: Top-line revenue growth remained robust, jumping 44% to $10.9 billion, while the bottom line suffered from increased costs as net income dropped a whopping 73% to $63 million, or $0.14 per share. Analysts were looking for a tad bit more in sales but $0.24 per share in profit.

Now what: Amazon has been focusing its efforts on investing for future growth, by building up its video-streaming library available to Amazon Prime members and likely taking an upfront loss on Kindle Fire sales. The growth story remains intact, yet investors are getting shocked into selling from the big miss on the bottom line. I'm a shareholder and I'm not fazed -- I'm actually excited about where Amazon is going.

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