The S&P opened Thursday above Wednesday's close and rose for the first couple of hours. It was flat for the remainder of the day until dropping within the last hour. The index ended the day with a loss of 0.05%, its third consecutive daily loss.

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The U.S. Treasury puts the closing yield on the 10-year note at 2.15%.

Here is a daily chart of the S&P 500. Today's selling puts the volume 5% above its 50-day moving average.

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A Perspective on Drawdowns

Here's a snapshot of record highs and selloffs since the 2009 trough.

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Here is a more conventional log-scale chart with drawdowns highlighted.

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Here is a linear scale version of the same chart with the 50- and 200-day moving averages.

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A Perspective on Volatility

For a sense of the correlation between the closing price and intraday volatility, the chart below overlays the S&P 500 since 2007 with the intraday price range. We've also included a 20-day moving average to help identify trends in volatility.

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