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peer-comparison-delta comparemlccpeer-swarmdeltaupstreamsemcosakainippon-chemical 2026-05-23

MLCC Peer Swarm — Delta vs 2026-05-20

Parent file: ~/claude/output/compare/mlcc-peer-swarm-2026-05-20.md (the original 7-ticker ranking and verdict) Universe extension: SEMCO 009150.KS + upstream pair Sakai 4078.T + Nippon Chemical 4092.T Date: 2026-05-23

This is a delta document. Read the May 20 file first for the original Murata-Yageo-Taiyo Yuden-TDK-Walsin-Holy Stone-PDC ranking; this one updates it.

1. Updated ranking 1-10 (current prices)

Rank Ticker Verdict Why
1 6981/6981 Murata 6981.T BUY scale-in
2 TDK 6762.T WATCH Highest governance quality; ROIC PSU hurdle with real payout-at-risk; TDK-NCI Advanced Materials JV (Apr 2026) is the equivalent margin-capture move; MLCC only ~10% of revenue
3 2327/2327 Yageo 2327.TW WATCH
4 2492/2492 Walsin 2492.TW WATCH (best pullback play)
5 6976/6976 Taiyo Yuden 6976.T WATCH
6 Nippon Chemical 4092.T WATCH leaning PASS MLCC powder 25.9% of sales (2x Sakai concentration); TDK JV anchor; BUT FY3/26 OP -27.7% missed plan; +22% rev growth was Q4 channel-fill noise
7 4078/4078 Sakai Chemical 4078.T WATCH
8 SEMCO 009150.KS PASS at current Real Tier-1 quality but 49.8x fwd P/E + chaebol discount + pricing follower (5-10% hike vs Murata's 15-35%); FCBGA optionality is the second leg; slots #5 at fair-value KRW 400-600K
9 PDC 6173.TWO PASS Parabolic; 53x trailing P/E on +12% net income growth; Jun 11 catalyst one-sided to downside
10 3026/3026 Holy Stone 3026.TW PASS (avoid)

2. What changed since May 20

The upstream alpha thesis is more nuanced than the original swarm suggested.

The May 20 synthesis flagged "Sakai Chemical (4078.T) is the missing seventh name" and "the highest-leverage next step." The Sakai profile invalidated half that framing:

  • Murata's MF Material JV with Ishihara Sangyo + Fuji Titanium (Sept 2023) is structurally diluting Murata's external powder buying — the merchant market is shrinking for the highest-volume buyer
  • Sakai mgmt names "one European competitor, one Japanese competitor, several Chinese competitors" — the "sole-supplier on sub-100nm" framing is mgmt's competitive set, not Sakai's monopoly
  • Sakai's claimed 40-50% share is share of merchant supply, not total market
  • FY3/26 Electronic Materials OP guided -4.2% YoY with explicit "prohibitively difficult" commentary

Nippon Chemical (4092.T) was supposed to be the cleaner candidate but isn't.

Sakai's profile flagged Nippon as the better starting-condition asymmetry (+22% YoY vs +1.9% guide, similar valuation). The Nippon profile broke that thesis:

  • The +22% in yfinance is Q4-only — full-year revenue was +3.4%
  • FY3/26 operating profit DECLINED -27.7%, missed the mid-term plan target by ¥0.9B
  • FY3/27 mgmt guide is only +4.6% (suggesting either deep sandbagging or that FY3/26 was channel-fill from Tokuyama ramp + post-trough customer restock)

TDK-NCI Advanced Materials JV (Apr 1, 2026) is the mirror of Murata's MF Material JV. TDK 51% / NCI 49%. TDK chose to integrate WITH Nippon Chemical rather than around it. This locks TDK as a named anchor MLCC powder customer for Nippon. Combined with Murata's MF Material, the structural picture for merchant powder makers is: Murata internalizing (negative for Sakai), TDK partnering (positive for Nippon), the Tier-2/3 names (SEMCO, Taiyo Yuden, Yageo, Walsin) still buying merchant (the residual market).

SEMCO is real Tier-1 but priced like one. ~22% global MLCC share confirmed; AI server MLCC volume leader. But 49.8x fwd P/E embeds peak execution; pricing follower not leader (5-10% hike vs Murata's 15-35%); chaebol governance discount that the swarm should apply. Ranks #5 at fair-value pricing (KRW 400-600K conviction zone, -55-70% pullback), #8 at current. The single best-known catalyst is Samsung Electronics' 23.7% stake getting mark-to-market for free if you own 005930.KS instead — flagged by the SEMCO sub-agent and worth a separate consideration.

3. The upstream picture rebuilt

Powder maker MLCC slice Murata exposure TDK exposure Merchant market position
Sakai 4078.T 11.9% sales / 24.5% OP Diluting (MF Material) Merchant Hydrothermal share leader on sub-µm
Nippon Chemical 4092.T 25.9% sales Diluting (MF Material) LOCKED IN (51/49 JV) Oxalate/alkoxide process; smaller merchant role
PDC 6173.TWO ~60% sales (hybrid w/ finished MLCC) Merchant Merchant PSA group captive to Walsin + external sales
MF Material (Murata captive) n/a (private JV) 100% n/a Internalizing Murata's high-end volume

The honest read: the merchant BaTiO3 powder market is structurally smaller than the swarm originally framed. Murata internalizing + TDK partnering with NCI leaves only Samsung E-M, Taiyo Yuden, Yageo, Walsin, and Chinese commodity makers as the addressable merchant base. Sakai and Nippon Chemical fight over that residual market with structurally similar economics. Best play if pursuing the upstream thesis is to own both as a pair — Sakai for near-term capital return (6.17% buyback + 4.6% yield) and Nippon for longer-dated Tokuyama operating leverage + TDK JV anchor. Either one alone is suboptimal.

4. Concrete actions

At current prices, do nothing on the 10 names. The only BUY scale-in is Murata; the only WATCH-with-real-pullback-ladder is Walsin (GTC ticket ready). Everything else is WATCH or PASS, with entries at meaningful pullbacks.

The single highest-priority action today: read the GTC ticket for Walsin at ~/claude/output/orders/walsin-2492-gtc-ladder-2026-05-23.md and decide whether to enter the TWD 225 starter as a GTC limit order in IBKR. The ticket has the IBKR-specific details (TWSE round-lots, T+2 settlement, trading hours).

Calendar-bound watches (already in Stock signals reminders list):

  • Jun 11: PDC Q1 2026
  • Jul 28: Yageo Q2 + monthly revenue
  • Aug 5: Taiyo Yuden Q1 FY3/27 + Nippon Chemical Q1 FY3/27 (the binary upstream-thesis test)
  • Oct 16: MLCC Q3 BB-ratio watch window opens

5. Surfaced but not researched (Pink to decide)

The SEMCO swarm surfaced two new candidates outside this exercise's scope:

  1. Kingboard 0148.HK — "crowding-aware upstream PCB/CCL play; only basket name with PT above spot" per the SEMCO sub-agent. Not researched. If true (PT above spot is rare in this sector right now), this is the only name in the entire MLCC + upstream universe trading below consensus fair value. Worth a /profile if Pink wants the unconsensus angle.

  2. Samsung Electronics 005930.KS — owns 23.7% of SEMCO. Buying 005930 gets you the SEMCO stake mark-to-market plus DRAM + foundry + smartphone + display. Wildly outside MLCC scope but mechanically a SEMCO proxy at a chaebol holding-company discount. Probably not worth a swarm — already extensively covered in mainstream research — but flagged as a cleaner SEMCO expression.

  3. Kyocera AVX — flagged as the 4th supplier in the high-CV AI MLCC oligopoly (Murata, TDK, SEMCO, Kyocera AVX per the Banyan Lane Murata thesis). Kyocera Corporation (6971.T) is the parent; AVX was acquired by Kyocera in 1990. AVX is not separately listed. Murata's primary direct competitor on the high-CV AI front per this source. Worth flagging that Kyocera Corp at the parent level should be on the MLCC competitive map even though it isn't a pure-play.

6. What's still gap

  • Mandarin MOPS diligence on Yageo/Walsin/Holy Stone/PDC remains best-effort partial; see ~/claude/output/mops-diligence-2026-05-23.md. The 10-20% governance discount remains the right adjustment.
  • The Q1 FY3/27 prints in August (Taiyo Yuden Aug 5, Nippon Chemical Aug 5-8 window) are the next dual-binary read — Taiyo Yuden on the cycle, Nippon Chemical on whether the Tokuyama operating leverage is real or channel-fill.
  • Murata's Apr-2026 FY3/27 guide (already past — checked at sub-agent time) — sub-agents flagged this but ticket data may be stale; verify with yfinance before any new Murata add.
  • The AI capex digestion 2027 risk is the single largest portfolio risk to this entire complex. A 15%+ capex guide-down from any of AMZN/MSFT/META/GOOG/ORCL cascades through all 10 names. Right portfolio response is 1-2 names at conviction sizing, not 10 names at trace sizing.

Sources (new this delta)

  • Sakai Chemical profile: ~/claude/output/profile/4078-t-profile.md
  • Nippon Chemical profile: ~/claude/output/profile/4092-t-profile.md
  • SEMCO swarm (4 files): ~/claude/output/{profile,deep-dive,mgmt-dd,checklist}/009150-ks-*.md
  • MLCC industry primer (with correction note): ~/claude/output/sectors/mlcc-primer.md
  • Walsin GTC ticket: ~/claude/output/orders/walsin-2492-gtc-ladder-2026-05-23.md
  • MOPS Mandarin diligence: ~/claude/output/mops-diligence-2026-05-23.md

Topics

  • green-finance
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