US STOCKS-Wall St rallies after Fed stands pat on rates
* Nasdaq closes at record high
* Fed signals it could still tighten by year end
* BOJ adopts target for long-term interest rates
* Indexes up: Dow 0.9 pct, S&P 1.09 pct, Nasdaq 1.03 pct (Updates with close of U.S. markets)
By Lewis Krauskopf
Sept 21 (Reuters) - Wall Street racked up gains on Wednesday after the U.S. Federal Reserve kept interest rates unchanged, for now leaving intact the low-rate environment that has helped underpin the bull market.
The Nasdaq closed at a record high.
The central bank strongly signaled it could still tighten monetary policy by the end of this year as the labor market improved further.
Earlier on Wednesday, global markets reacted to the Bank of Japan's abrupt shift to targeting interest rates on government bonds to achieve its elusive inflation target. Continuación...