2330 closes the week at TWD 2,400, up 4.1% over five sessions, and the borrow story that dominated the last two notes has now reversed completely.
The defining feature of this week is a dramatic unwind in domestic borrow costs. After spending three sessions — June 5 through June 8 — running near 5.9%, the cost to borrow the TSEC-listed shares collapsed back to 0.70% by June 11 and has held there since, settling at 0.70% on June 16. That is an 88% drop week-on-week and returns costs to exactly where they were on June 3, before the episode began. Two prior notes flagged this as a directed-demand dislocation rather than a supply squeeze — lending pool availability never tightened, remaining at the ORTEX platform ceiling throughout. That interpretation now looks correct: when the trade closed, borrow costs snapped back instantly. There was no supply constraint to unwind, only a specific demand that disappeared.
Short interest on the domestic listing is negligible and not the story here. What is worth noting is the positional context: availability remains effectively unlimited, short interest as a percentage of the free float is minimal, and the ORTEX short score has drifted slightly lower to 25.5 — ranking in the 95th percentile for its sector on the short score rank factor, meaning shorts face unusually benign conditions to exit or enter. The borrow market is as relaxed as it has been all year.
The Street and broader positioning picture reinforces the untroubled read. TSMC's ORTEX stock score recently touched a six-month high near 88.7, with quality the dominant pillar — near-perfect Piotroski F-score, Altman Z-score above 6, 18% ROA. The trailing PE has drifted higher to around 21.9x, up roughly one turn over the past month, and EV/EBITDA is running at 14.3x. Analyst data on the TSEC listing is too stale to cite meaningfully. What is notable is that geopolitical risk — US export restrictions, Chinese customer uncertainty — remains a live overhang, even as the quality of the underlying business continues to score ahead of large-cap semiconductor peers including Nvidia on ORTEX metrics. Earnings are due July 16. The April print produced a 2.4% one-day decline, and the January print gained 1.8%; reaction magnitudes have been modest in both directions.
Among correlated peers, 6857 on the Tokyo exchange gained 15.2% on the week — a sharp outperformance relative to TSMC's 4.1%. TSEC peer 3711 was essentially flat at +4.0%, while 2449 fell 4.5%, the worst performer in the peer group. The divergence within the peer set likely reflects stock-specific factors rather than a sector-wide read.
Institutional holders are not sending a distress signal either. BlackRock added roughly 33 million shares in the latest reporting period. Capital Research added 9 million. The top five holders — including Taiwan's National Development Fund at 6.4% and Capital Research at 5.1% — show no material exits. Insider activity over the past 90 days is net positive by roughly 210,000 shares, though the largest single transaction was a VP sell of 200,000 shares in May worth about $14 million against much smaller buy tickets — so the net figure flatters the picture slightly.
The July 16 earnings date is now the focal point: with borrow costs normalised, availability uncapped, and the stock trading near the top of its recent range, the setup into the print will determine whether this week's calm holds or whether another directed borrow trade — on either the ADR or the domestic listing — re-emerges as the price approaches quarter close.
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