Here are three stocks with buy ranks and strong growth characteristics for investors to consider today, September 30:Powell Industries, Inc. (POWL) : This custom equipment manufacturer carries a Zacks Rank #1, and has witnessed the Zacks Consensus Estimate for its current year earnings increasing 32.9% over the last 60 days.Powell Industries has a PEG ratio of 1.30 compared with 1.56 for the industry. The company possesses a Growth Score of B.The Progressive Corporation (PGR) : This insurance holding compan ...