美國重要股市指數 集中區

SPX
http://www.cnyes.com/usastock/profile/SPX.html


TRIN
http://www.google.com/finance?q=NASDAQ%3ATRIN
http://www.cnyes.com/usastock/profile/TRIN.html
http://www.chineseworldnet.com/scripts/na/stock/research/stockinfo/info.asp?si=NASDAQ&ss=TRIN (中文)
http://stockcharts.com/school/doku.php?id=chart_school:technical_indicators:trin
http://www.daytradingit.com/trin.html

TICK