MicroPort Scientific's stock plummeted 5.11% intraday, triggered by a large-scale sell-off from its major shareholder Capital Group.

Capital Group, which holds approximately 8% of the company, conducted a near-complete liquidation of its stake, which the market interprets as a loss of patience with MicroPort's prolonged "cash-burning" business model. The company has recorded substantial losses for multiple consecutive years despite growing revenue, leading to skepticism about its profitability.

Market concerns also extend to MicroPort's reliance on spinning off subsidiaries for separate listings as a capital operation strategy. Although the company recently provided optimistic guidance projecting revenue of approximately RMB 1.1 billion and targeting breakeven with positive free cash flow for the current fiscal year, the shareholder exodus has overshadowed this outlook, highlighting deep-seated worries about the company's ability to demonstrate core business profitability.