IPOs

Ranked by percentage gain in share price from initial public stock offering to March 30, 2007.

	Company	IPO date	IPO price	Price on 3/30/07	Change since offering (percent)
1	Acme Packet	Oct. 12	$9.50	$14.78	55.6%
2	Double-Take Software	Dec. 15	$11.00	$13.51	22.8%
3	Metabolix	Nov. 9	$14.00	$16.63	18.8%
4	IPG Photonics Corp.	Dec. 12	$16.50	$19.20	16.4%
5	Altra Holdings	Dec. 14	$13.50	$13.71	1.6%
6	Altus Pharmaceuticals	Jan. 25	$15.00	$15.22	1.5%
7	OneBeacon Insurance Group Ltd.	Nov. 8	$25.00	$25.00	0.0%
8	NewStar Financial	Dec. 13	$17.00	$16.76	-1.4%
9	LeMaitre Vascular	Oct. 19	$7.00	$6.38	-8.9%