Proto Labs Inc (NY: PRLB )

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2012	36.42	37.10	36.07	37.10	65,562	+0.79(+2.18%)
Apr 27, 2012	35.06	36.57	34.82	36.31	41,773	+1.18(+3.36%)
Apr 26, 2012	33.85	35.89	33.59	35.13	96,592	+1.32(+3.90%)
Apr 25, 2012	33.55	33.92	33.09	33.81	28,541	+0.66(+1.99%)
Apr 24, 2012	32.98	33.15	32.69	33.15	23,690	+0.25(+0.76%)
Apr 23, 2012	32.84	33.00	32.28	32.90	18,813	-0.50(-1.50%)
Apr 20, 2012	32.20	34.07	31.53	33.40	59,612	+1.54(+4.83%)
Apr 19, 2012	30.59	33.27	30.59	31.86	142,618	+1.46(+4.80%)
Apr 18, 2012	30.29	30.60	29.73	30.40	35,632	-0.14(-0.46%)
Apr 17, 2012	30.41	30.80	30.02	30.54	105,642	+0.45(+1.50%)
Apr 16, 2012	31.02	31.02	28.61	30.09	118,331	-0.71(-2.31%)
Apr 13, 2012	31.84	32.08	30.78	30.80	92,650	-1.36(-4.23%)
Apr 12, 2012	32.91	32.91	31.00	32.16	96,906	-0.87(-2.63%)
Apr 11, 2012	34.09	34.09	32.33	33.03	51,867	-0.67(-1.99%)
Apr 10, 2012	33.97	34.88	33.48	33.70	83,403	-0.26(-0.77%)
Apr 09, 2012	32.97	34.72	32.74	33.96	62,429	+1.81(+5.63%)
Apr 05, 2012	31.64	32.44	31.42	32.15	25,749	+0.29(+0.91%)
Apr 04, 2012	34.99	34.99	31.60	31.86	213,870	-3.34(-9.49%)
Apr 03, 2012	35.11	35.45	34.50	35.20	44,863	+0.07(+0.20%)
Apr 02, 2012	33.73	35.61	32.90	35.13	76,257	+1.04(+3.05%)
Mar 30, 2012	34.04	34.80	33.35	34.09	392,275	+0.47(+1.40%)
Mar 29, 2012	32.68	34.12	32.29	33.62	71,434	+1.20(+3.70%)
Mar 28, 2012	32.45	33.05	31.00	32.42	66,722	+0.17(+0.53%)
Mar 27, 2012	33.45	34.00	32.01	32.25	38,505	-0.96(-2.89%)
Mar 26, 2012	32.74	33.84	32.71	33.21	27,562	+0.76(+2.34%)
Mar 23, 2012	32.29	32.91	32.00	32.45	11,489	+0.42(+1.31%)
Mar 22, 2012	31.77	32.74	31.77	32.03	18,145	+0.15(+0.47%)
Mar 21, 2012	32.73	34.00	31.69	31.88	51,675	-0.59(-1.82%)
Mar 20, 2012	33.50	33.50	32.01	32.47	35,580	-1.03(-3.07%)
Mar 19, 2012	34.22	35.71	32.95	33.50	46,719	-0.99(-2.87%)
Mar 16, 2012	34.45	35.93	34.45	34.49	131,342	+0.25(+0.73%)
Mar 15, 2012	33.20	35.33	33.20	34.24	186,011	+1.24(+3.76%)
Mar 14, 2012	32.06	33.46	31.43	33.00	75,110	+1.34(+4.23%)
Mar 13, 2012	31.95	32.49	30.96	31.66	25,964	-0.14(-0.44%)
Mar 12, 2012	31.41	31.80	31.33	31.80	27,083	+0.39(+1.24%)
Mar 09, 2012	30.77	31.92	30.17	31.41	48,466	+1.05(+3.46%)
Mar 08, 2012	28.53	30.57	28.50	30.36	59,430	+2.25(+8.00%)
Mar 07, 2012	28.50	29.75	28.00	28.11	34,548	+0.11(+0.39%)
Mar 06, 2012	27.50	28.79	27.00	28.00	95,941	+0.75(+2.75%)
Mar 05, 2012	28.50	28.50	27.16	27.25	29,660	-1.29(-4.52%)
Mar 02, 2012	30.23	30.94	28.36	28.54	63,506	-1.46(-4.87%)
Mar 01, 2012	31.19	31.19	29.40	30.00	84,375	-0.75(-2.44%)
Feb 29, 2012	29.00	31.70	29.00	30.75	116,669	+1.48(+5.06%)
Feb 28, 2012	28.48	29.28	27.90	29.27	100,181	+1.07(+3.79%)
Feb 27, 2012	29.00	30.25	27.11	28.20	368,873	-0.80(-2.76%)