datoid

The 10-year Treasury yield crashed to 2.20% on August 9, 2011—nearly 80 basis points below its 60-day mean of 2.99% and representing a 4.8 standard deviation event. This dramatic flight to safety occurred amid a sharp selloff that began July 29. The timing coincides with record-low unemployment at 4.30% and rising GDP, suggesting the yield collapse reflects market stress rather than economic fundamentals. The disconnect between strong employment data and Treasury panic points to external shock factors driving investor behavior.