Here are five stocks added to the Zacks Rank #1 (Strong Buy) List today:Preferred Bank (PFBC) : This banking products and services company has seen the Zacks Consensus Estimate for its current year earnings increasing 5.6% over the last 60 days.Weatherford International plc (WFRD) : This energy services company has seen the Zacks Consensus Estimate for its current year earnings increasing 8.6% over the last 60 days.Insulet Corporation (PODD) : This insulin delivery systems company has seen the Zacks Consens ...