Share prices drop amid persistent volume pressure.

Views investment analysts as too pessimistic.

Gold Medal flour implicated in episode.

Cites focus on food security, health and well-being and sustainability.

Traces rapid progress since mid-2010s.

Hearthside corporate rating cut to Caa1.

Company cuts guidance after tough quarter.

Management remains optimistic, reaffirms guidance.

Transaction likely to be complete in fourth quarter.

Growth spans regions, category groups.