* Nikkei 225 Stock Average: -194.29 (-1.1%) to 17,963.64; First session in six below 18,000, three-week intra-day low below 17,900
* Nikkei 225 futures Osaka: -210 (-1.2%) to 17,970, Singapore (SGX) 17,965, Chicago (CME) 7/20 — 17,950
* TOPIX: -18.88 (-1.1%) to 1,757.29; Advancers 233 x decliners 1,430 (unchanged 67), New highs 30 x new lows 164; 28/33 sectors posted losses
* Jasdaq: -0.65 (-0.82%) to 78.42
* Yen strengthens 1.15% against US$ to 121 on subprime mortgage-related concerns, 1.5 month high for the yen
Broad selling and weakness, especially in smaller caps, real estate and non-bank financial stocks.

nikkei 225