Does anyone have a minute to share their thoughts/theory on why...

Does anyone have a minute to share their thoughts/theory on why the trading of such small parcels?
Below is a grab from trading today

	Column 1	Column 2	Column 3	Column 4	Column 5
0	2:43:20 PM	0.410	64	26.240
1	2:36:35 PM	0.410	68	27.880
2	2:33:06 PM	0.410	421	172.610
3	2:33:06 PM	0.410	16,920	6,937.200
4	2:25:15 PM	0.410	3,057	1,253.370
5	2:24:49 PM	0.410	73	29.930
6	2:24:40 PM	0.410	5,000	2,050.000
7	2:22:34 PM	0.410	36	14.760
8	2:04:51 PM	0.410	591	242.310
9	2:04:49 PM	0.410	63	25.830
10	1:49:32 PM	0.410	3,180	1,303.800
11	1:47:19 PM	0.410	12,324	5,052.840
12	1:44:27 PM	0.410	11,676	4,787.160
13	1:41:35 PM	0.410	66	27.060
14	1:41:11 PM	0.410	377	154.570
15	1:19:34 PM	0.415	72	29.880
16	1:13:19 PM	0.415	53	21.995
17	12:53:13 PM	0.415	9,778	4,057.870