The Intercontinental Exchange, Inc. ICE, -0.75% said late Wednesday that the New York Stock Exchange will temporarily close floor trading and move to fully electronic trading on Monday after a trader and a NYSE employee tested positive for COVID-19. "Trading and regulatory oversight of all NYSE-listed securities will continue without interruption," the exchange operator said. The NYSE equities trading floor in New York, the NYSE options trading floor in New York, and the NYSE Arca Options trading floor in San Francisco are to close, the company said. The move is a "precautionary step to protect the health and well-being of employees and the floor community in response to COVID-19," it said. "NYSE's trading floors provide unique value to issuers and investors, but our markets are fully capable of operating in an all-electronic fashion to serve all participants, and we will proceed in that manner until we can re-open our trading floors to our members," NYSE President Stacey Cunningham said in a statement. Later on, the NYSE confirmed that a trader and an employee had tested positive for the virus. Both were screened at a security checkpoint and not permitted to enter the building this week. The NYSE employee was last in the exchange building at the heart of Wall Street on Friday, and did not access the trading floor, the company said. The trader also was last at the building on Friday, and sent home on Monday to await results without entering the building past the screening area, the company said.