This video article features Tesla, Zillow, Facebook, Yelp, and LinkedIn.

The New York Stock Exchange recently updated its stock market margin debt data, and it looks like main street and Wall Street are both continuing to dump millions in borrowed dollars into the stock market. History shows us this is typical market behavior when you have big-name companies like Tesla Motors (NASDAQ:TSLA), Zillow (NASDAQ:ZG), and Facebook (NASDAQ:FB) rising more than 100% in a year, and the S&P 500 hitting all-time highs. 

*Margin data from NYSE; S&P 500 data from Standard and Poor's.

In the video below Motley Fool analyst Blake Bos discusses the recent margin debt data and how investors in high-flying companies should evaluate their positions in such a debt-laden market.

Blake Bos has no position in any stocks mentioned. The Motley Fool recommends Facebook, LinkedIn, Tesla Motors, and Zillow. The Motley Fool owns shares of Facebook, LinkedIn, Tesla Motors, and Zillow. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.