{
  "@context": "https://orbyd.app/schemas/dossier.v1.json",
  "ticker": "UMC",
  "name": "United Microelectronic Corp.",
  "url": "https://orbyd.app/dossiers/UMC/",
  "json_url": "https://orbyd.app/dossiers/UMC.json",
  "status": "HELD",
  "current_conviction": "LOW",
  "graded_conviction": "LOW",
  "archetype": {
    "code": "a4",
    "n": 4
  },
  "current_thesis": "Silicon-photonics pivot re-rated the ADR ~3x, but the July blowoff to $28.96 round-tripped -26% to $21.25 in days while sell-side finally upgraded (Macquarie Outperform 2026-07-14) — late-stage distribution behaviour. The 2026-07-29 Q2 print is now the binary that decides whether the leg resumes or the re-rate unwinds.",
  "invalidation_trigger": "A weekly close below $19.00 takes out the June breakout shelf and confirms the $28.96 July high as the cycle top; secondarily, a Q2 print on 2026-07-29 that meets revenue but compresses gross margin, showing the mature-node price war reasserting under an AI headline.",
  "catalyst_date": "2026-08-14",
  "outcome": "INVALIDATED",
  "outcome_date": "2026-07-28",
  "invalidation_fired": true,
  "themes": [
    "semi-foundry-equipment",
    "networking-optical",
    "ai-datacenter-infrastructure"
  ],
  "tags": [],
  "sources": [],
  "notes": [
    "Each UMC ADS represents five TWSE-listed common shares (2303.TW) and prices off Taiwan's prior close, so US-session gaps carry overnight information.",
    "2303 trades a ±10% daily price limit the ADR does not; the local can lock limit-up or limit-down while the ADR keeps trading, so the two diverge for a session.",
    "Taiwan issuers must disclose monthly net sales within the first ten days of the following month — a datapoint cadence no US-listed foundry publishes.",
    "The dividend is annual: US$0.412162 per ADS, ex-date 2026-07-08, paid 2026-08-06, 13.42% below 2025's US$0.476027. No further payout event before the 2027 cycle.",
    "Non-operating investment and dividend income can dominate reported net income — NT$30.236B of NT$42.26B in Q2 2026. Operating margin is the cleaner series.",
    "A zero-coupon convertible of roughly NT$16B (dual tranche) was approved 2026-06-03 for capacity expansion; dilution and arbitrage hedging supply sit behind the float."
  ],
  "body_markdown": "## Current Thesis\n\nThe structural line this coverage carried since 2026-08-04 gave way. The ADR closed the week on 2026-08-07 at $18.72, down 2.50% from a $19.20 prior close, under the $19.00 shelf that had marked the June breakout base. That came one day after UMC disclosed July net sales of NT$23,844M against NT$20,040M a year earlier, +18.98% YoY, with seven-month sales of NT$153,615M, +12.41% (Businesswire, 2026-08-06).\n\nOperations and tape are now pointing in opposite directions, and the tape is what changed. What remains on offer is no longer the silicon-photonics re-rate — that priced between spring and the 2026-06-25 high of $28.96, and roughly 35% of it has come back out — but an ordinary mature-node margin recovery: gross margin guided to the mid-30% range from 32.5%, utilization above 90% from 85%, wafer shipments up a high-single-digit percentage QoQ and USD ASPs guided firm (2026-07-29 call). The ADR carried a US$45.18B market cap and an 18.81x forward multiple on 2026-08-07.\n\n**Life-cycle: SATURATED.** The dating is in the reaction function. Five rating actions landed after the 2026-06-25 high and none before it — Macquarie reinstated Outperform 2026-07-14, Wall Street Zen Hold→Buy 2026-07-25, Zacks Hold→Strong Buy 2026-07-28, KGI Neutral→Outperform with an NT$132 target 2026-07-29, Weiss Hold (C) — alongside a twenty-year total-return retrospective on 2026-07-22. Since then: a Q2 beat (US$2.176B vs US$2.060B consensus; EPS $0.54 vs $0.15), a capex raise to US$2.0B from US$1.5B, an accelerating monthly sales series, and a lower high (2303 NT$126.00 on 2026-08-03) followed by a lower weekly close. Mainstream coverage arrived; the incremental bid did not.\n\n## Bull Case\n\n- **Q3 2026 guide, 2026-07-29 call:** gross margin to the mid-30% range from 32.5%, utilization above 90% from 85%, shipments up high-single-digit% QoQ, USD ASP firm, 8-inch loading recovering toward the mid-80% range. Price and volume guided higher in the same quarter.\n- **July 2026 net sales NT$23,844M, +18.98% YoY (2026-08-06)** — sequentially above June's NT$23.12B and the first month inside the quarter the above-90% utilization guide applies to. Seven-month sales NT$153,615M, +12.41%.\n- **Q2 2026 delivered on both lines:** revenue NT$68.73B, +12.6% QoQ and +17% YoY; gross margin 32.5% from 29.2%; utilization 85% from 79% in Q1 and 76% a year earlier; EPS NT$3.39.\n- **Capex is being committed against that demand:** 2026 capex raised to US$2.0B from US$1.5B under a board-approved NT$148.68B budget, roughly 90% to 12-inch, funding a Singapore P4 cleanroom and a new fab shell at Tainan 12A (Form 6-K, 2026-07-29).\n- **Mix-shift optionality is dated, not hypothetical:** first mass-production delivery of 12-inch silicon photonics wafers disclosed 2026-07-29, following the SILITH milestone of 2026-07-14, with platform general availability targeted for 2027.\n- **Pricing language turned constructive** — Q2 blended ASP up a low-single-digit percentage QoQ, with management pointing to \"more meaningful pricing uplift in 2027\" (2026-07-29 call). TrendForce (2026-05-22) has SMIC and Hua Hong raising mature-node prices and top-ten 8-inch utilization moving from 75–80% in 2025 toward 85–90% in 2026.\n\n## Bear Case\n\n- **The $19.00 shelf broke on the 2026-08-07 weekly close of $18.72**, with the 50-day average at $22.31 on 2026-08-04 and falling. The ADR sits under a declining medium-term average after a beat-and-raise quarter.\n- **The CFO sold into the move.** A Form 4 records CFO & SVP Chitung Liu selling 1,900,000 common shares at NT$154.89 on 2026-07-13, leaving 3,322,917 shares held directly and 2,150,000 indirectly. The local traded NT$116.00 on 2026-08-07.\n- **Foreign institutions distributed into the rebound:** net selling of 146,308 lots of 2303 across three sessions into 2026-08-03, when turnover was the third heaviest on the exchange (Business Today, 2026-08-04).\n- **YoY sales growth decelerated** from June's +22.85% to July's +18.98%, in the first month of the quarter guided to above-90% utilization.\n- **Earnings quality is thin under the headline:** NT$30.236B of Q2's NT$42.26B net income was non-operating investment and dividend income. Screens and headline multiples are working off a number operating performance did not produce.\n- **The AI leg is small against the base:** roughly US$300M of AI-related revenue projected for 2026 versus US$2.176B of revenue in Q2 alone. Intel 12nm tape-outs are a 2027 event with meaningful production placed in 2028.\n\n## Setup & Price Structure\n\nADR: $18.72 on 2026-08-07, -2.50%, prior close $19.20; 52-week range $6.56–$28.96. The 2026-06-25 high of $28.96 is unretested, and the 2026-08-03 session gapped to $17.69 (7.0% under the prior close) and touched $17.49 before closing $18.69. The post-print reaction low near $16.96 on the ADR, corresponding to the NT$102.50 local low of 2026-07-29, is the next structural reference beneath the broken $19.00 shelf.\n\nLocal: 2303 closed NT$116.00 on 2026-08-07, -4.53%, on 168.88M shares; 52-week range NT$40.10–NT$185.50; market cap NT$1.46T. The sequence since the print is legible — NT$102.50 low on 2026-07-29, NT$110.00 close 2026-07-30, a +10% limit lock at NT$121.00 on 2026-07-31 with open, high and low identical on just 45.3M shares, then NT$126.00 to NT$118.00 (-2.48%) on 372.3M shares on 2026-08-03, NT$118.50 on 2026-08-04, NT$116.00 on 2026-08-07.\n\nPositioning observables, without a verdict attached: five sell-side actions all after the high; a CFO Form 4 sale at NT$154.89 dated 2026-07-13; three sessions of foreign net selling totalling 146,308 lots into 2026-08-03; short interest of 20.51M ADS at the 2026-07-15 settlement; a zero-coupon convertible of roughly NT$16B approved 2026-06-03 whose arbitrage hedging sits behind the float; price below a falling 50-day. There is no earnings print inside the next 30 days — the next hard company datapoint is a monthly sales line.\n\n## Catalyst Calendar (next 30 days)\n\n- **~2026-08-12 (est.)** — semi-monthly short-interest dissemination covering the 2026-07-31 settlement date. Measures whether short exposure grew through the post-print give-back from the 20.51M ADS recorded at the 2026-07-15 settlement.\n- **2026-08-14** — Q2 2026 13F deadline. First hard look at US institutional positioning across the quarter containing the 2026-06-25 high of $28.96.\n- **~2026-09-04 (est.)** — August 2026 net sales. Statutory deadline 2026-09-10. The number that either extends July's NT$23,844M sequentially or contradicts the above-90% utilization guide in its second month.\n- **2026-09-10** — statutory deadline for Taiwan foundry peers' August sales, giving a same-week read on whether mature-node loading is industry-wide or company-specific.\n\n## What Would Change Our Mind\n\nThe $19.00 June shelf is already gone — 2026-08-07 settled that, and the constructive case now rests entirely on the NT$102.50 / ~$16.96 print-day floor holding while the monthly series keeps compounding. A weekly close below $16.96 removes that floor and dates the entire 2026 re-rate as unwinding rather than consolidating; at that point the June high of $28.96 stands as the cycle top and the operating recovery becomes a story about a cheaper stock rather than a rising one.\n\nOn the other side, the read turns constructive again on evidence, not on price alone: August net sales (~2026-09-04, est.) printing sequentially above NT$23,844M with YoY growth back above +18.98%, and the ADR reclaiming and holding $19.00 on a weekly basis, would put volume behind the mid-30% gross-margin guide before the 2026-10-28 Q3 print rather than after it. An August number below July's level, or a further leg of foreign net selling in 2303, keeps the current characterisation intact.\n\n## Correlation Notes\n\n- **Taiwan-complex beta dominated the July drawdown.** The TAIEX fell 2,953.71 points (-6.47%) to 42,671.27 on 2026-07-17, its largest point decline on record, with TSMC -7.29% to NT$2,290 and record foreign net selling of NT$189.04B (Taipei Times, 2026-07-18). UMC's give-back ran with the complex.\n- **Dispersion appears on the mature-node story.** On 2026-08-04, 2303 closed +0.42% at NT$118.50 while TSMC fell 2.11% to NT$2,320.00 — the two do not always trade as one instrument.\n- The local carries a ±10% daily limit the ADR does not, which produced the 2026-07-31 limit-lock and the 2026-08-03 catch-up gap.\n- **Mature-node pricing comps to watch alongside it:** SMIC, Hua Hong and GlobalFoundries. TrendForce (2026-05-22) frames the 8-inch utilization recovery as sector-wide, so an ASP reversal at a peer reads across.\n- **Revenue is USD-denominated against a largely TWD cost base**, so the USD/TWD cross moves reported gross margin independently of loading.\n- **Convertible supply:** the ~NT$16B dual-tranche zero-coupon issue approved 2026-06-03 introduces hedging flow that is mechanically correlated to drawdowns rather than to fundamentals.",
  "first_seen": "2026-05-01",
  "last_analyzed": "2026-08-09T10:12:21+00:00",
  "last_synthesized": "2026-08-09",
  "last_update_source": "watchlist_research",
  "license": "Content © orbyd. Cite the canonical URL."
}