DANG [E-COMMERCE CHINA DANGDANG] SC 13G/A: (Original Filing)
[S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Citadel Advisors LLC 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) £ £ (b) 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5.]