invisible trading

I noticed that the trades marked 'NXXT' show up on the volume but have no effect on the SP. I don't know why this is.



10:56:13 AM 0.006 500,000 3,000.000 NXXT
10:52:04 AM 0.006 1,000,000 6,000.000 NXXT
10:40:16 AM 0.005 106,407 532.035
10:40:16 AM 0.005 893,593 4,467.965
10:15:33 AM 0.006 183,318 1,099.908
10:04:22 AM 0.006 460,383 2,762.298
10:04:22 AM 0.006 539,617 3,237.702



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