Lumber prices - collapsedTypically, strongly correlated to economic performance.
There is usually a strong relationship between lumber prices and housing, naturally. Of note, housing data, as well as employment data for that matter, are often lagging indicators.
Additionally:
``Lumber prices are the most correlated with ISM and GDP of all industrial commodities and that is a problem…``
1) ``Lumber prices have collapsed to 4 year lows.
The 33% Year-over-year plunge is the biggest since the financial crisis and is flashing a big red recession alarm…`` 
2) ``Lumber prices have historically led stocks and are pointing to significant downside from here…``
3) ``It appears lumber’s decline points to notable downside for manufacturing…``
