The market's leading stocks ended mixed Wednesday. Financial Engines (FNGN) was the best performer, rising 86 cents, or 3%, to a new high of 31.83. It ended just off its intraday high, a bullish sign. But volume was weak. The stock, which has the lightest average volume among Sector Leaders, is 29% above a 24.60 buy point from a cup-with-handle base, putting it well beyond the 5% limit that defines a buy area. The portfolio advisory and management