Stagnant in the morning, but drop in the afternoon

Today ,Tokyo market opened slightly lower and formed a box range in the morning.In the afternoon, it broke that range to upward but soon started to drop and ended at very low level.

Stock Indices
Nikkei225Average O. 17807.23 H. 17861.47 L.. 17678.98 C. 17702.09 CHG. -156.33
TOPIX O. 1751.03 H. 1755.83 L.. 1735.92 C. 1737.18 CHG. -16.85 VOL. 201168
JASDAQ O. 78.63 H. 78.8 L.. 77.84 C. 77.86 CHG. -0.82 VOL. 37717

Stock Index Futures
Nikkei225Futures O. 17830 H. 17880 L.. 17670 C. 17700 CHG. -160 VOL. 109275
TOPIX Futures O. 1748 H. 1755.5 L.. 1729.5 C. 1732 CHG. -19 VOL. 45609