Rent-a-car specialists Hertz Global Holdings, Inc. (HTZ) was upgraded Thursday morning by analysts at Wachovia. Wachovia raised its rating on Hertz to “Outperform” from a previous rating of “Market Perform.” The analyst also raised its valuation range $9 to $10, from $7 to $8.50. Hertz shares rose 19 cents, or +2.8%, in afternoon trading Thursday. The Bottom [...]