exchange ▁particip ant ", ▁later ▁named ▁as ▁NY SE ▁Ar ca ▁was ▁not ▁specified ▁in ▁the ▁initial ▁statement . ▁It ▁was ▁stated ▁that ▁the ▁initial ▁error ▁was ▁identified ▁and ▁resolved ▁within ▁ 3 0 ▁minutes ▁and ▁that ▁the ▁subsequent ▁out age ▁time ▁was ▁spent ▁coordin ating ▁with ▁regul ators ▁and ▁st ake hold ers . ▁ ▁On ▁August ▁ 2 9 , ▁ 2 0 1 3 , ▁NAS DA Q ▁O M X ▁issued ▁a ▁statement ▁detail ing ▁the ▁causes ▁of ▁the ▁trad ing ▁halt , ▁as ▁well ▁as ▁adm itting ▁a ▁degree ▁of ▁responsibility ▁for ▁the ▁out age . ▁The ▁statement ▁acc red ited ▁a ▁number ▁of ▁conver gent ▁issues ▁as ▁the ▁cause ▁of ▁the ▁out age , ▁some ▁of ▁which ▁NAS DA Q ▁O M X ▁took ▁responsibility ▁for . ▁Of ▁these ▁issues ▁they ▁stated ▁that ▁“ we ▁are ▁responsible ▁for ▁them , ▁regret ▁them , ▁and ▁intend ▁to ▁take ▁all ▁steps ▁necessary ▁to ▁address ▁them ▁to ▁enh ance ▁stability ▁and ▁functionality ▁of ▁the ▁mark ets .” ▁However , ▁the ▁statement ▁also ▁placed ▁significant ▁bl ame ▁on ▁the ▁NY SE ▁Ar ca ▁system ▁as ▁the ▁primary ▁cause ▁for ▁the ▁out age . ▁The ▁statement ▁referred ▁to ▁system ic ▁techn ological ▁issues ▁and ▁called ▁for ▁collaboration ▁among ▁market ▁leaders ▁to ▁progress ▁the ▁systems . ▁The ▁statement ▁included ▁references ▁to ▁policy ▁changes ▁and ▁design ▁improvements ▁intended ▁to ▁mit ig ate ▁the ▁potential ▁for ▁further ▁out ages , ▁specifically ▁cit ing ▁dis aster ▁recovery , ▁as ▁well ▁as ▁to ▁improve ▁communication ▁with ▁market