Which 1998 Russian financial crisis event caused global markets to plunge after a government debt default?

The Russian government default in August 1998 caused global markets to plunge during the 1998 Russian financial crisis. Russia announced a restructuring and partial default on domestic ruble-denominated debt while also widening the ruble’s trading band and imposing a temporary moratorium on some foreign debt payments.

The crisis followed years of fiscal weakness, low tax collection, political instability, and dependence on short-term government securities. Falling oil and commodity prices reduced government revenues, while investors became increasingly unwilling to refinance Russian debt. The country’s earlier defense of the ruble also consumed foreign-exchange reserves.

The shock spread well beyond Russia. International investors reduced exposure to emerging markets, and the highly leveraged hedge fund Long-Term Capital Management suffered heavy losses. The Federal Reserve helped organize a private-sector rescue of LTCM in September 1998 because officials feared disorderly liquidation could destabilize financial markets.

The event is sometimes described simply as a ruble crisis, but the government-debt default was a central and highly specific part of the episode.