The Nasdaq had yet another problem Wednesday with the main data feed that was at the center of its unprecedented outage nearly two weeks ago.
According to the exchange, a system called the "Securities Information Processor," or SIP, experienced an outage between 11:35 a.m. and 11:41 a.m.
The outage affected the exchange's ability to transmit quotes in stock symbols PC through SPZ.
But other market participants said the outage was worse than that. NYSE Arca said it stopped receiving inbound stock quotes on all Nasdaq symbols between 11:35 a.m. ET and 11:44 a.m. ET.