Two years ago analysts and company officials celebrated the stock's first rise over the $100 mark. Meanwhile, many bank stocks made a limited recovery Tuesday. The Standard & Poor's bank index rose 3.32%, to 565.62, and the Dow Jones industrial average 3.82%, to 7827.46. The Nasdaq Bank index climbed 1.96%, and the S&P 500 jumped 3.86%. Investors remained cautious in a market where bargain hunters were on the prowl for cheap stocks. Some of the biggest gainers included M&T Bank Corp., which rose $26, to $436; Fleet Financial Group $4.8125, to $69.875; and Northern Trust Corp. $5.375, to $61.125. Seeking to defend their stocks in the wake of Monday's rout, smaller banks and thrifts announced a flurry of share buyback plans on Tuesday. Among them: Coastal Bancorp, Houston; Citizens First Financial Corp., Bloomington, Ill.; Financial Federal Corp., New York; MAF Bancorp, Clarendon Hills, Ill.; and Reliance Bancorp, Garden City, N.Y.