NASDAQ Inc. was hit by a system error Wednesday that impacted thousands of stock orders, leading some to be canceled, according to people with knowledge of the matter.
The exchange operator told market participants it’s investigating an order-entry issue that caused inaccuracies and delays, the people said, asking not to be identified discussing a private matter. Nasdaq’s electronic communication channel, which processes so-called financial information exchange or "FIX” messages, was affected, the people said.
