C. Stephen Tusa Jr.J.P. MorganAfter a year atop the roster, C. Stephen Tusa Jr. slips back to second place. Clients applaud the J.P. Morgan researcher’s valuation-driven upgrade of Wabco Holdings from neutral to overweight in December, at $41.31. Tusa argued that concerns over low demand, especially from Europe, were overblown and that order flow was on the rise. Shares of the Brussels-based commercial transmission and brake manufacturer jumped 42.1 percent, to $58.72, and led the sector by 29 percentage points, through August. “Steve is uniquely competent at connecting valuation with macro catalysts, which is a weak area for most other analysts,” attests one booster. Among the 22 companies he covers, Tusa’s current top pick is Fairfield, Connecticut’s General Electric Co., on its steady revenue stream and rising dividend yield.