Margin Loans Hit Record 33.8 Trillion Won as Brokerages Compete With Sub-4% Rates

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1. "Capturing Debt-Fueled Investors" With Lower Rates…Margin Loans Hit Record High

- Key Summary: As of the 16th, the outstanding balance of margin loans hit a record 33.87 trillion won. The KOSPI's reclaim of the 6,000 level and easing geopolitical risks from expectations of Iran negotiations quickly revived investor sentiment. Major brokerages resumed margin trading that had been suspended, while mid-sized and small brokerages such as Hanyang Securities (001750.KS) (3.65% annually) and Cape Investment & Securities (3.59% annually) competed for customers with rates lower than banks' mortgage rates (in the 4% range), further fueling the balance surge. With Samsung Electronics (3.44 trillion won) and SK hynix (2.23 trillion won) topping margin loan rankings, the securities industry notes a pronounced leverage concentration in large-cap semiconductor stocks.

2. Samsung's 300 Trillion Won Operating Profit Thanks to Semiconductor Super Cycle…Union Insists on 580 Million Won 'Lottery Bonuses'

- Key Summary: Samsung Electronics' National Samsung Electronics Union has announced a general strike on May 21, demanding 15% of operating profit be paid as performance bonuses. The financial investment industry projects Samsung Electronics' operating profit this year could reach approximately 300 trillion won, as the AI investment boom has driven general-purpose DRAM prices up 10-fold from last year. If the union's demands are met, per-capita bonuses for memory semiconductor employees would reach 580 million won, more than four times last year's shareholder dividends (11.1 trillion won). Industry officials say the hardline stance of mobilizing core process workers for the strike, even rejecting agreed-upon work, raises risks of production disruptions.

3. China's Semiconductor Boom Defies U.S. Containment; SMIC, Cambricon Soar

- Key Summary: Of 211 semiconductor companies listed on China's mainland, 129 saw revenue grow year-on-year, with AI chip fabless Cambricon's revenue surging 453% to post its first profit since listing. SMIC, China's top foundry, also grew annual revenue by 16.49% and net profit by 39%, solidifying its position as the world's third-largest foundry. In the physical AI sector, autonomous driving startup TuSimple Hang attracted a record 675.8 billion won investment, with funding concentrating across China's AI ecosystem. Observers say the acceleration of China's semiconductor self-sufficiency could affect Korean semiconductor firms' mid- to long-term market share competition.

4. "Overtaking Samsung Again"…SK-TSMC 'HBM4 Alliance' Strengthened

- Key Summary: SK hynix has finalized a technology strategy that applies TSMC's 3nm process to HBM4E base dies, doubling power efficiency compared to existing products. While Samsung Electronics took a preemptive lead with the world's first HBM4 mass production and shipment in February, SK hynix recently completed base die redesigns and is preparing HBM4 good-product shipments in the second half. With HBM4E mass production planned for next year, the industry interprets the 3nm and 1c process combination as a calculation to surpass Samsung in performance per watt. However, the expected continuation of TSMC's 3nm capacity shortage through next year is cited as a variable.