Software & Stock Exchanges—Not Skynet Yet

A week after the Nasdaq’s 3-hour shutdown in August 2013 the exchange published Preliminary Findings on the outage.   I’ve extracted some sentences: On August 22, the Securities Information Processor (SIP) received more than 20 connect and disconnect sequences from NYSE Arca, each of which consumed significant resources. Available capacity was further eroded as the SIP received a stream of quotes for inaccurate symbols from NYSE …

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