Underwriter (Number of Offerings As Lead Underwriter)

After-Market Performance (Average)

Salomon Smith Barney (3)

+157%

Credit Suisse First Boston (4)

+157%

Prudential Vector Healthcare Group (2)

+113%

Bear, Stearns & Co. Inc. (2)

+89%

CIBC World Markets (4)

+87%

Lehman Brothers Inc. (7)

+74%

UBS Warburg/Warburg Dillon Read LLC (10)

+63%

Thomas Weisel Partners LLC (1)

+60%

Goldman, Sachs & Co. (5)

+59%

Deutsche Banc Alex. Brown (5)

+58%

ING Barings LLC (3)

+54%

J.P. Morgan & Co. (8)

+52%

Robertson Stephens Inc. (8)

+50%

First Security Van Kasper (1)

+50%

Merrill Lynch & Co. (4)

+49%

Roth Capital Partners Inc. (1)

+39%

Morgan Stanley Dean Witter Inc. (6)

+37%

Donaldson, Lufkin & Jenrette (2)

+34%

Chase H&Q (6)

+31%

Paulson Investment Co. (1)

+27%

Neidiger Tucker Bruner Inc. (1)

+19%

PaineWebber Inc. (2)

+10%

S.G. Cowen Securities Corp. (2)

-5%

U.S. Bancorp Piper Jaffray (1)

-6%

Bank of America Securities (2)

-27%

Bank Vontobel (1)

N/A