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Table 1 Order book characteristics<br />

BHP NAB NCP TLS WOW<br />

Mean S.D. Mean S.D. Mean S.D. Mean S.D. Mean S.D.<br />

sprd 1.075 0.311 2.175 1.516 1.277 0.599 1.006 0.079 1.485 0.922<br />

trvol 2,746.7 7,688.5 1,174.1 2,901.3 1,113.7 4,131.5 8,877.5 39,414.2 1,646.7 4,906.6<br />

buyvol 5,692.4 9,783.9 2,830.6 4,016.9 4,817.5 7,408.2 2,1233.8 57,399.5 3,707.5 7,184.2<br />

sellvol 8,336.2 12,190.6 2,902.7 3,902.7 5,358.7 7,789.6 21,816.1 60,877.4 4,410.3 6,785.4<br />

qvol 8,303.4 38,223.4 3,534.3 4,858.5 5,235.3 6,238.4 35,513.0 68,337.0 4,832.7 7,329.7<br />

qavol 9,704.9 12,842.4 3,621.1 5,169.3 5,209.8 6,058.5 35,077.7 68,038.8 5,123.8 7,046.5<br />

qbvol 7,212.8 49,667.3 3,453.4 4,549.0 5,264.2 6,436.2 35,927.5 68,618.7 4,585.3 7,553.3<br />

cvol 11,172.2 81,984.5 4,308.8 6,063.3 4,533.8 5,999.2 61,007.7 97,236.4 6,021.8 9,469.3<br />

cavol 11,595.3 17,307.7 4,348.3 6,392.8 4,315.7 5,438.5 64,477.8 100,813.0 5,793.7 8,761.2<br />

cbvol 10,778.7 112,671.2 4,271.5 5,736.1 4,774.1 6,553.5 58,166.4 94,120.8 6,211.8 10,018.1<br />

d_askp 5.842 86.084 6.407 24.454 7.247 52.743 3.198 11.616 4.818 16.021<br />

d_bidp 4.662 16.628 8.543 71.853 6.131 14.328 2.377 7.798 4.104 14.611<br />

amq 0.115 0.316 0.423 0.809 0.101 0.319 0.040 0.197 0.230 0.518<br />

avol 1,452.4 343.7 265.1 62.1 920.6 256.4 5,409.2 1,558.8 501.8 185.0<br />

bvol 1,376.9 665.7 222.9 78.7 720.3 216.3 6,237.1 1,647.8 344.5 230.7<br />

adiff_1 0.897 0.671 2.018 1.926 1.271 0.939 0.577 0.268 1.376 1.323<br />

adiff_2 1.308 1.007 2.880 2.752 1.884 1.319 0.643 0.357 2.001 1.931<br />

142<br />

A. D. Hall, N. Hautsch

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