Dual listing by itself is no guarantee for protection against anything, well except for arbitrage. It all depends on where you are dual listed. I have a stock that is listed on Nasdaq and TSX.V (Canada). While Nasdaq is well known for legal shorting and associated HTF manipulation, TSX even officially allows naked shorting as legal trading. So the stock is twice as much shorted and manipulated as it would be if only on Nasdaq.
Personally I'd like to see Siaf listed on Nasdaq OMX and OTC in the long term.
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