The u.s. Treasury puts the closing yield on the 10-year note at 2.55%.

Here's a snapshot of the index going back to December 2008.

A Perspective on Drawdowns

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

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

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

A Perspective on Volatility