Stock Market: Chinese Markets Lose 2.5 Trillion Yuan After U.S. Strikes in Iran

On Monday, July 13, 2026, a flash crash wiped out 2.5 trillion yuan in just 15 minutes on the Shanghai Stock Exchange, prompting Beijing to liquidate its U.S. Treasury bonds to save the yuan. Triggered by U.S. strikes in Iran, this stock market crisis exposes the systemic vulnerability of traditional markets to energy shocks.

In Brief

• A flash crash erases 2.5 trillion yuan in market capitalization in only 15 minutes.
• The Shanghai and Shenzhen stock exchanges close sharply lower, weighed down by the collapse of the energy sector.
• U.S. military strikes in Iran cause oil prices to surge and threaten China's energy security.
• To save its currency, China massively liquidates its U.S. Treasury bonds, spreading panic to Western markets.

The Collapse of Chinese Stock Markets

This significant stock market crash occurred on Monday morning, shocking investors worldwide. By the end of the trading session, official figures confirmed the extent of this spectacular drop through key indicators:

• Instant losses: over 2.5 trillion yuan in market capitalization completely evaporated from the markets of the Middle Kingdom in just fifteen minutes;
• The Shanghai Composite: the benchmark index fell by 2.06% to settle at 3,913.79 points by the end of the day;
• The Shenzhen Component: the situation was even more critical in Shenzhen, where the index recorded a massive drop of 3.48%, finishing the session at 14,522.9 points.

To understand the nature of this crash, it is essential to look at the sectoral origin of the losses on the stock exchange, which reveals a crisis deeply correlated with the vital infrastructures of the world's second-largest economy. Companies in the energy sector suffered staggering losses throughout the day. The case of Datang International Power Generation, one of the country's leading electricity producers, is particularly emblematic as its stock recorded one of the most severe declines in the market with a violent drop of 9.94%.

The brutal decline of this specific sector directly and immediately reflects investors' concerns regarding the country's future hydrocarbon supply. This sudden paralysis occurs in an already delicate domestic context, marked by a Chinese economy already weakened by years of slowed growth and significant difficulties in its real estate sector.

Beijing's Response

In response to the situation, the central government activated its contingency plan by ordering its major national refiners to maintain maximum fuel production to preserve its supply security. This strict directive entails heavy financial sacrifices for the industries, forced to operate at full capacity despite reduced margins, solely to build strategic reserves.

The origin of this sudden destabilization finds its roots thousands of kilometers away from Shanghai, specifically in the Middle East. U.S. military strikes against targets in Iran have indeed triggered a shockwave across global markets, raising the specter of a prolonged blockade of the Strait of Hormuz, a strategic maritime route through which about one-fifth of the world's oil passes. For China, which imports over 70% of its crude oil, this situation represented a direct threat to its energy security, causing an immediate rise in global prices.

Liquidation of Treasuries and International Contagion

To support the yuan amid the general panic among investors, Beijing immediately deployed its monetary resources by initiating a massive liquidation of its U.S. Treasury bonds. On-chain data indicates that Chinese authorities are actively mobilizing their dollar reserves to stabilize their financial markets in the face of capital flight.

The decision to sell U.S. sovereign debt adds an explosive geopolitical dimension to the crisis, as this action is likely to drive up interest rates in the United States and complicate the Federal Reserve's monetary policy. Additionally, Western stock markets opened in the red due to this contagion.

This major crisis invites a nuanced reflection on the prospects of global financial markets and alternative assets. On one hand, traditional investors are feeling the full brunt of state economies' critical dependence on energy flows from the Gulf, turning every geopolitical escalation into an immediate liquidity risk. On the other hand, this massive sale of U.S. Treasury bonds by Beijing could undermine confidence in traditional reserve currencies and government bonds.