Utilize the input text as a context reference, choose the right relationship between Moscow Exchange and Moscow from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Moscow Exchange Suspends Trading for Second Time This Month Moscow Exchange Suspends Trading for Second Time This Month Market participants reported difficulties withdrawing orders and inaccurate order book data for derivative instruments.

Answer: headquarters_location