From your table.. Nov 2018.  Actually ending stocks are Decreasing..

HRW Wheat:

Beginning Stocks  581 myn bushels

Production:   662 myn bu.
Implied Imports:       3 myn bu.

Added supplies:  665 myn bu.

Domestic Usage:  460 myn bu.
Exports:  360 myn bu.

Total Usage:  820 myn bu.

Ending Stocks:  426 myn bu.

Change in Stocks:    -155 myn bu.

155 / 581 = 26.68% decline.

How is this bearish?!?