While any stock can see a spike in price, it takes a real winner to consistently outperform the market. Shares of Marsh & McLennan have increased 10.12% over the past quarter, and have gained 40.49% in the last year. In comparison, the S&P 500 has only moved 1.8% and 28.9%, respectively. Investors should also pay attention to MMC's average 20-day trading volume. Volume is a useful item in many ways, and the 20-day average establishes a good price-to-volume baseline; a rising stock with above average volume is generally a bullish sign, whereas a declining stock on above average volume is typically bearish. MMC is currently averaging 1,878,741 shares for the last 20 days. Earnings Outlook The Zacks Momentum Style Score also takes into account trends in estimate revisions, in addition to price changes. Please note that estimate revision trends remain at the core of Zacks Rank as well. A nice path here can help show promise, and we have recently been seeing that with MMC.