Wells Fargo analyst Neil Kalton raised his price target for Ameren to $95 from $86 and maintained an Overweight rating after the Missouri Public Service Commission approved the stipulation authorizing Ameren Missouri to defer and amortize Callaway nuclear plant refueling outage costs over a roughly 18-month period vs. incurring all costs, from an accounting perspective, during the 1-2 month outage period. While the deferral mechanism has no impact on Ameren Missouri's long-term EPS power, the analyst says it will reduce the company's earnings volatility around Callaway's planned outages.