VLSI KoreaDaily Silicon: Citi and KB Pile Into Memory Re-Rating, TSMC Adds $20B to Arizona
TL;DR — KB Securities head of research Kim Dong-won maintained Buy and raised SK hynix's target price from ₩2.0M to ₩2.8M (+40%) on May 13. He re-cut 2026/20...
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A practicing semiconductor engineer's daily read on global silicon news:
On May 12-13, equities, policy, and capex aligned in one direction — foreign and Korean IBs simultaneously re-rated memory while TSMC's board approved another $20B Arizona injection and SIA pushed Congress on AMIC.
Chase's Take — As a working backend engineer, what worries me most when consensus starts throwing around numbers like ₩270T and ₩418T OP is the self-rationalization that 'everything is already priced in.' Unpack KB's 2027 ₩418T OP for SK hynix and it implicitly assumes another step-up in HBM ASP on top of current LTAs, plus utilization north of 100% — OPC and etch tools running full tilt. The weakest link in that scenario is production yield: if HBM4 12-Hi can't lock in 11Gb/s pin speed stably, capex goes up but shipped bits won't track consensus. TSMC's extra $20B in Arizona sits on top of an AMIC-extension assumption, and the SIA letter exposes that fault line — if Congress doesn't move before the Dec 31 sunset, the US fab economics premise wobbles. Citi calling Samsung at ₩331T OP without specifying SF2 yield assumptions is the same kind of risk. Next watch-points: Nvidia's FY1Q27 print on May 20 and SIA April Global Billings in the first week of June — the first real test of whether consensus is catching up to the numbers or already overshooting.
1. KB Securities Lifts SK hynix PT ₩2.0M → ₩2.8M (+40%), Re-Bases 2027 OP at ₩418T
TL;DR — KB Securities head of research Kim Dong-won maintained Buy and raised SK hynix's target price from ₩2.0M to ₩2.8M (+40%) on May 13. He re-cut 2026/2027 OP estimates to ₩270T/₩418T and put 2Q26 OP at ₩67T (~7x YoY).
2. Citi Goes ₩460K on Samsung, ₩3.1M on SK hynix — Foreign IBs Join the Memory Supercycle
TL;DR — Citigroup raised Samsung from ₩300K → ₩460K (+53%) and SK hynix from ₩1.7M → ₩3.1M (+82%) on May 12, calling supplier pricing power 'unprecedented' and expecting memory prices to keep climbing through 2H. 2026/2027 OP marks: Samsung ₩331T/₩412T, SK hynix ₩251T/₩347T.
3. TSMC Board Approves Additional $20B Equity Injection Into Arizona, $31.28B Capex Tranche
TL;DR — TSMC's board on May 12 approved up to $20B of additional equity into TSMC Arizona, allocated ~$31.28B in capex for advanced capacity and fab construction, and declared a NT$7/share 1Q26 dividend. The Arizona round funds the US program through parent equity rather than debt.
4. SoftBank Pumps Another $457M Into Graphcore — Reviving Stargate's In-House Silicon
TL;DR — SoftBank disclosed a $457M new equity round into UK AI chip maker Graphcore on May 12 (shares issued April 10), described as 'only a portion' of capital coming this year. Reads as a Stargate-aligned move to rebuild a non-Nvidia silicon option for the $500B AI infra build-out.
Source: CNBC — SoftBank Pumps Another $457M Into Graphcore — Reviving Stargate's In-House Silicon
5. CNBC: Asia's $1T Chip Club Is Distorting KOSPI and TAIEX — Concentration Risk Flagged
TL;DR — In a May 12 analysis, CNBC noted TSMC accounts for >40% of TAIEX while Samsung + SK hynix make up a record 42.2% of KOSPI, turning both indices into a near-single bet on the AI capex cycle. TSMC market cap ~NT$58T ($1.85T), Samsung crossing $1T.
Source: CNBC — CNBC: Asia's $1T Chip Club Is Distorting KOSPI and TAIEX — Concentration Risk Flagged
6. SIA and 17 Industry Groups Formally Ask Congress to Extend and Expand AMIC
TL;DR — The Semiconductor Industry Association and 17 major trade groups sent a joint letter on May 12 asking Congress to extend the Advanced Manufacturing Investment Credit (AMIC) past its December sunset and broaden it to cover chip design and R&D. They cite $640B of investment catalyzed across 30 states and 140 projects to date.
7. DIGITIMES: Trusval Posts Record 1Q26 on TSMC 2nm + Arizona/Kumamoto Expansion
TL;DR — Taiwanese fab-facility engineering firm Trusval reported 1Q26 revenue NT$1.54B (+14% YoY), OP NT$216M (+26%), EPS NT$3.63 (+9%) — a record for the quarter. Drivers are TSMC's 2nm ramp and advanced packaging capacity adds.
Source: DIGITIMES — DIGITIMES: Trusval Posts Record 1Q26 on TSMC 2nm + Arizona/Kumamoto Expansion
8. LS Securities Raises SK hynix PT to ₩2.1M, Calls Out Bonus Inflation as a Cost Variable
TL;DR — LS Securities analyst Jung Woo-sung lifted SK hynix's target from ₩1.5M to ₩2.1M on May 11 on HBM moat, server DRAM ASPs running above expectations, AI memory demand concentration, and low exposure to commodity memory volatility. He explicitly flagged peer bonus payouts as a margin-pressuring variable.
Frequently Asked Questions
What target did KB Securities set for SK hynix?
KB Securities maintained Buy and raised SK hynix's target price from ₩2.0M to ₩2.8M, up 40%, on May 13. It put 2Q26 operating profit at ₩67T and re-cut 2026 and 2027 operating profit estimates to ₩270T and ₩418T.
What targets did Citi set for Samsung and SK hynix?
Citigroup raised Samsung Electronics from ₩300K to ₩460K and SK hynix from ₩1.7M to ₩3.1M on May 12. It cited supplier pricing power and expected memory prices to keep rising through the second half.
What did TSMC's board approve for Arizona?
TSMC's board on May 12 approved up to $20B of additional equity into TSMC Arizona and allocated about $31.28B in capex for advanced capacity and fab construction. It also declared a NT$7 per share 1Q26 dividend.
How much did SoftBank invest in Graphcore?
SoftBank disclosed a $457M new equity round into UK AI chip maker Graphcore on May 12, for shares issued April 10. The amount was described as only a portion of the capital coming this year.
How concentrated are the KOSPI and TAIEX in chip stocks?
TSMC accounts for more than 40% of the TAIEX, while Samsung and SK hynix together make up a record 42.2% of the KOSPI. Both indices are therefore heavily exposed to the AI capex cycle.
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