TSMC

Taiwanese retail investors have taken on significant margin debt to chase a stock market that doubled, with reported anecdotes of individuals going deep into personal loans to amplify exposure to what has been a TSMC-and-AI-driven surge. The 'FOMO really got me' framing in the primary reporting is not colour, it is a warning signal: when leverage is rationalised by past returns rather than fundamental thesis, the unwind tends to be disorderly. For UK investors with exposure to global semiconductor or AI infrastructure plays, the relevant risk is that a Taiwan retail correction triggers forced selling in the underlying stocks that have been driving the rally, including names held in mainstream global equity funds. The second-order effect is sentiment contagion into other AI-adjacent markets that have run hard on narrative rather than earnings.

C.C. Wei just pledged to raise employee profit-sharing by more than 30% after internal complaints about compensation failing to match record AI-driven earnings. TSMC's 2025 revenue hit $122.4 billion, up 36%, with AI chips now commanding 58% of sales versus 51% last year, according to earnings reports. The move signals how tight the semiconductor talent market has become as TSMC races to build six Arizona fabs while ramping 3nm production. When your margins are 67%, keeping engineers happy becomes a strategic imperative.

Samsung became Korea's first trillion-dollar company on February 26, briefly ranking 12th globally before shedding $110 billion in market value within days of the milestone. The surge to 218,000 KRW per share was driven by AI chip demand and analysts predicting 10x profit growth by 2028, but the rapid retreat exposes the volatility beneath AI infrastructure bets. Samsung's foundry secured Apple and Tesla deals for 2nm processes while leading high-bandwidth memory for AI servers, yet remains half TSMC's valuation despite similar positioning. The collapse highlights how quickly AI momentum can reverse when expectations meet reality.

Intel stock gained after Musk confirmed his planned Terafab facility will use Intel's most advanced manufacturing processes. The endorsement provides Intel with a marquee customer for its foundry ambitions, crucial as the company fights TSMC for AI chip production contracts. Musk's public backing could help Intel win other hyperscaler customers who have been skeptical of its foundry capabilities. The partnership also gives Tesla direct access to cutting-edge chip production, reducing dependence on NVIDIA's supply chain for AI hardware.

Taiwan's stock market hit $4 trillion in value this week, edging past the UK for the first time. TSMC alone now trades at £615 billion, making it worth more than Shell, BP, and Vodafone combined. The island nation's semiconductor monopoly has turned geopolitical risk into a premium, not a discount. Every ChatGPT query and Tesla autopilot decision runs through Taiwanese fabs, creating the strangest economic moat in modern history.