* Nikkei 225 Stock Average: +168.86 (+1.1%) to 15,901.34, intra-day high of 16,101.64
* Nikkei 225 futures Osaka: +140 (+0.9%) to 15,870, Singapore (SGX) 15,865, Chicago (CME) 8/20 — 15,805
* TOPIX: +26.31 (+1.7%) to 1,549.88; Advancers 1,369 x decliners 288 (unch. 66), New highs 2 x new lows 142; all 33 sectors posted gains
* Jasdaq: +0.16 (+0.2%) to 70.66
* Yen last trading near 114.4/$, up about 0.8%