Sep17 江恩九宫格（Gann's square of 9）.

Disclaimer-
Of course--「市場玄學」係mystic, esoteric religion而唔係有效嘅trading methodology-
(竹本疋虫 Bro)

Gann square of Nine calculator
http://www.xmlworks.com/gann/javascript

Daily
(1) EWH (NYSE-HK i share)
May 25 low close 13.83
Sep 17 Friday Close 17.32
Gann Sq-level 9=17.34 (anti-clockwise 270deg)

(2)$HKDOW (DJ HK stock Index)
May 25 low close 363.02 (363)
Sep 17 close 447.67
Gann Sq -level 5=448 (anti-clock 180 deg)

(3) $HSI
May 25 18971.52
Sep 17 close 21970
Gann sq start 190
so level 3=220 (anti-clock 135deg)