Zacks Equity Research has designated Fortinet, Inc. (NASDAQ: FTNT) as its Bull of the Day and Ecopetrol S.A. (NYSE: EC) as its Bear of the Day, reflecting sharply diverging outlooks for the two companies. Fortinet has earned a Zacks Rank of #1, or Strong Buy, driven by a wave of upward earnings revisions from Wall Street analysts in recent weeks. The Zacks Consensus Estimate for Fortinet’s current-year earnings climbed from $3.01 to $3.40, while the next-year estimate moved up from $3.30 to $3.80, reflecting growing conviction in the company’s growth story. The Zacks Consensus Estimate for Ecopetrol’s current-year earnings has fallen from $2.31 to $1.85, while the next-year estimate dropped from $2.09 to $1.78, pointing to accelerating pressure on profitability. While current-year earnings growth is still forecast to rise 46%, that figure is projected to contract by 7% next year, raising questions about the sustainability of any near-term recovery.