Korean won all over the shop on surprise BoK decision then coronavirus acceleration

Won lost ground as Trump's presser kicked off, then strengthened on the surprise no policy move from the Bank of Korea:

• Korea's central bank leaves its benchmark rate unchanged (a cut was widely expected)

Then gave it all back on the bad news on the virus:

• 3. Coronavirus - US urges reconsidering travel to South Korea
• 2. South Korea confirms 334 more coronavirus cases, total 1595
• 1. South Korea, U.S. decide to indefinitely postpone upcoming combined exercises over coronavirus concerns