A surprisingly strong Advance Estimate of Q3 GDP preceded what appeared to be a reversal of the downtrend over the previous four sessions in the S&P 500. At the opening bell index digested the economic news (which might strengthen the odds of a Fed rate hike) and then rallied to a modest 0.36% mid-day high. But at 1 PM the FBI announced it was reopening its Hillary email probe. The index promptly sold off to its -0.64% intraday low. Not surprisingly, that triggered a "buy-the-dip" strategy, and the 500 rose to the level of yesterday's close. But selling in the final 30 minutes dropped the index to its -0.31% Friday close.

The 10-year closed the week at 1.86%, up one BP from the previous close.

Here is a snapshot of past five sessions in the S&P 500.

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 Here's a weekly chart of the index, which is down 0.69% from last Friday, the third weekly decline over the past four weeks.

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A Perspective on Drawdowns

Here's a snapshot of 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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