Kioxia’s TSE listing uses 285A, not 6600.T. The 6600 appears in some pre-listing references but the live security code is 285A on the Tokyo Stock Exchange Prime Market.
Kioxia’s TSE listing uses 285A, not 6600.T. The “6600” appears in some pre-listing references but the live security code is 285A on the Tokyo Stock Exchange Prime Market.
| Item | Detail |
|---|---|
| IPO date (listing) | December 18, 2024 |
| IPO price | ¥1,455 per share (midpoint of ¥1,390–¥1,520 range) |
| First-day opening price | ¥1,601 (opened above IPO price) |
| First-day close | ~¥1,645 (closed ~13% above IPO price) |
| Exchange | Tokyo Stock Exchange Prime Market |
| Procedure | Japan’s first S-1 equivalent “pre-approval notification” listing procedure |
| New shares issued | 21,562,500 shares (primary — proceeds to company) |
| Secondary shares sold | ~50,380,100 shares (by Bain and Toshiba) |
| Overallotment option | 10,791,300 shares |
| Total offering size | ~71,942,600 shares (excl. greenshoe) / ~82,733,900 (incl. greenshoe) |
| Total proceeds (incl. overallotment) | ¥120.4 billion (~$800M) |
| Company’s portion (new shares) | ¥27.7–31.4 billion (~$190–210M) |
| Market cap at IPO price | ¥784 billion (~$5.2B at ¥150/$1) |
| First-day market cap | ~¥886.8 billion (~$5.8–5.9B) |
| Total shares outstanding post-IPO | ~546 million shares (per StockAnalysis, as of early 2026) |
| Legal counsel | Ropes & Gray (Bain), Davis Polk & Wardwell (company/underwriters) |
| Joint lead managers | Morgan Stanley, Nomura, Merrill Lynch, Goldman Sachs International |
Kioxia had attempted IPOs multiple times since 2020. The company was forced to delay due to: - NAND market downturn in 2022–2023 that pushed the company into losses - Disagreement between Bain and Toshiba on valuation (Bain reportedly sought >$10B; market cleared at ~$5B) - Ongoing WD merger discussions (see Section 3) - A ¥900B ($5.8B) syndicated loan requiring refinancing
The December 2024 IPO was ultimately executed at a significant discount to Bain’s entry valuation. The company used the S-1-style filing process to expedite the listing.
The company’s new shares (~¥27–31B) were targeted primarily at: - Debt reduction — repayment/refinancing of the ¥900B ($5.8B) syndicated loan (balance had been partially reduced by FY2025) - Capex — expansion of NAND production capacity at Yokkaichi (Mie) and Kitakami (Iwate) fabs, conversion to 8th/9th generation NAND process nodes - Balance sheet strengthening (net debt/equity fell from 277% at end-FY2023 to 126% at end-FY2024)
The secondary shares (~¥89B worth) went to Bain and Toshiba, not the company.
| Item | Detail |
|---|---|
| Deal name | Acquisition of Toshiba Memory Corporation (TMC) / Toshiba Memory Holdings |
| Announced | September 28, 2017 |
| Closed | June 1, 2018 |
| Total consideration | ¥2 trillion (~$18 billion) |
| Classification | Asia’s largest-ever LBO at the time |
| Acquirer | Bain Capital-led consortium |
| Seller | Toshiba Corporation (distressed, due to Westinghouse nuclear subsidiary losses) |
| Post-close structure | Toshiba retained 40.2% equity stake in the spun-out entity |
Toshiba faced existential financial pressure from massive write-downs at Westinghouse Electric (nuclear construction losses at Vogtle and V.C. Summer). The memory division sale was forced to recapitalize the parent company. Western Digital contested the sale as a breach of their joint venture agreement, causing months of litigation and delay.
The $18B deal was structured in two tranches:
Tranche 1 — ¥960B: Equity (ordinary + convertible shares) - Bain Capital (consortium lead) - SK Hynix (participated as LP in Bain-led fund) - Hoya Corporation - Development Bank of Japan (DBJ) - Innovation Network Corporation of Japan (INCJ, a government fund) - Mitsubishi UFJ Financial Group (banking relationship) - Toshiba itself (retained equity)
Tranche 2 — ¥440B: Preferred securities (convertible and non-convertible) - Apple - Dell - Kingston Technology - Seagate Technology
The technology companies (Apple, Dell, Kingston, Seagate) participated as preferred security holders — strategic customers buying in primarily for supply security, not control. They received convertible/non-convertible preferred instruments, not common equity.
SK Hynix invested a total of ¥395 billion (~$3B / 3.68 trillion KRW) in 2018, structured as:
| Component | Amount | Instrument |
|---|---|---|
| LP investment in Bain-led fund | ¥266B (~$2.48B / 2.48T KRW) | Fund units (equity exposure via Bain consortium) |
| Direct convertible bonds | ¥129B (~$1.2B / 1.2T KRW) | Converts to ~14.4% stake in Kioxia |
| Total SK Hynix commitment | ¥395B (~$3B) |
The convertible bonds gave SK Hynix an option to acquire a ~14–15% direct stake in Kioxia. Until 2028, SK Hynix’s voting rights through these bonds are capped at ~15% of Kioxia shares, to address antitrust concerns (SK Hynix is a direct NAND competitor). After 2028, restrictions ease and SK Hynix can deepen management involvement.
Post-IPO (after bond conversion), SK Hynix became Kioxia’s third-largest shareholder at ~14%.
Bain’s consortium paid ¥2 trillion for a company where Toshiba retained 40.2% equity. The Bain-led consortium therefore effectively paid ~¥2T for ~59.8% of the company (including SK Hynix, INCJ, DBJ, Hoya participation).
Implied total enterprise valuation at acquisition: ~¥2T / 0.598 = ~¥3.34T (~$28–30B on a total equity basis, but this overstates it — the ¥2T is the acquisition price for the controlling stake portion, and Toshiba’s retained equity was unpaid consideration). The commonly cited “valuation” at deal close is ~¥2T (the transaction price), not a full enterprise value.
Per-share equivalent at entry: Not directly derivable from public sources — Kioxia was private with no disclosed share count at acquisition. Proxy: At IPO, ~546M shares at ¥1,455 = ¥784B market cap. At Bain’s $18B acquisition price for the whole business, the per-share implied cost was ~¥3,300/share (¥2T / 600M pre-IPO equivalent shares, rough estimate). However, Bain’s actual equity invested was less than $18B given the use of debt and co-investors; Bain’s direct equity stake cost is not publicly disclosed.
| Date | Event |
|---|---|
| Early 2021 | Merger talks first reported between Kioxia and Western Digital |
| 2022 | Talks paused amid NAND market downturn and WD internal issues |
| July 2023 | Talks reportedly near completion — combined entity would have had ~34% NAND share, surpassing Samsung |
| October 2023 | Talks terminated — blamed on SK Hynix opposition |
| Early 2024 | Bain reportedly tried to revive merger discussions |
| October 2024 | Western Digital announces formal split of HDD and NAND/SSD businesses; NAND spun off as “SanDisk” |
SK Hynix blocked the merger. As an indirect shareholder in Kioxia (via the Bain consortium) and a direct NAND competitor, SK Hynix: 1. Felt the merger would dilute its influence over Kioxia 2. Was concerned the combined Kioxia/WD entity would create a NAND giant that competed more effectively with SK Hynix 3. Had a strong veto position through its convertible bond structure
The failed merger had two downstream consequences: - WD split into Seagate-style HDD pureplay + “SanDisk” NAND pureplay (now listed separately) - Kioxia proceeded to a standalone IPO in December 2024
| Shareholder | Stake |
|---|---|
| Bain Capital (via BCPE Pangea entities) | ~52% |
| Toshiba Corporation | ~32% |
| SK Hynix (convertible bonds, pre-conversion) | ~14% (post-conversion) |
| Hoya Corporation | ~3% |
| Free float / others | ~28% |
Note: The 28% float was below the Tokyo Stock Exchange Prime Market requirement of 35%. Kioxia acknowledged this and committed to increasing float, with Bain and Toshiba agreeing to sell down over time. Target is to reach 35% float by 2030.
| Shareholder | Stake |
|---|---|
| BCPE Pangea Cayman (Bain) combined | 44.33% (down from 51.64%) |
| Toshiba | ~27.25% (per IR page as of Sep 30, 2025) |
| SK Hynix | ~14% (post bond conversion, per IPO structure) |
Transaction: BCPE Pangea Cayman LP sold 36 million shares at ~¥9,000/share in a block trade on November 25, 2025. Goldman Sachs was bookrunner; shares sold to overseas institutional investors. Proceeds: ~¥355B ($2.3B). This was done ~6 months after lock-up expiry (see Section 5).
| Shareholder | Stake |
|---|---|
| Bain Capital (all BCPE entities combined) | ~29–30% (below 30% per Nikkei reporting) |
| Toshiba | ~27–30% (not yet sold materially) |
| SK Hynix | ~14% (estimate, pending formal conversion disclosure) |
Transaction: Bain sold an additional stake reducing from 36.86% to <30%. Total proceeds from this second transaction reported at ~$3.5B (per Nikkei). Bain remains the largest single declared shareholder.
| Holder | Type | Est. Stake | Notes |
|---|---|---|---|
| BCPE Pangea entities (Bain Capital) | PE sponsor | ~28–30% | Still largest shareholder; continuing to sell down |
| Toshiba Corporation | Strategic | ~27–30% | Subject to lock-up; minimal sales to date |
| SK Hynix | Strategic / financial | ~14% | Convertible bonds; voting restricted until 2028 |
| Hoya Corporation | Strategic | ~3% | Minor strategic holder |
| Free float / institutions | Public | ~28–35% | Rising as Bain sells; still below 35% TSE target |
Toshiba Corporation itself was taken private by Japan Industrial Partners (JIP) consortium in December 2023. So when you see “Toshiba” as a Kioxia shareholder, the beneficial owner is the JIP-controlled privatized Toshiba. JIP is a Japanese PE firm. Toshiba/JIP has been slower to sell than Bain, and there are no major secondary transactions on Toshiba’s side publicly reported through April 2026.
Standard TSE IPO lock-up for major shareholders: 180 days from listing date.
| Lock-up start | IPO listing date | December 18, 2024 |
|---|---|---|
| 180-day lock-up expiry | June 15–16, 2025 (approximately) |
This is consistent with search result reporting that “both Bain and Toshiba plan to sell after lock-up expires in June 2025.”
| Date | Event |
|---|---|
| Dec 18, 2024 | IPO listing |
| ~Jun 15–16, 2025 | 180-day lock-up expires for Bain and Toshiba |
| Nov 25, 2025 | Bain’s first post-lockup block sale: 36M shares at ¥9,000; $2.1–2.3B proceeds; stake 51.64% → 44.33% |
| Dec 3, 2025 | Regulatory filing confirms Bain stake at 44.33% |
| Late Feb/Mar 2026 | Bain second block sale: stake 36.86% → <30%; ~$3.5B proceeds |
| Through Apr 2026 | Toshiba has not conducted any material secondary sale (no public filings found) |
| 2028 | SK Hynix voting rights restriction expires; can deepen Kioxia involvement |
Yes — the IPO lock-up expired approximately June 15, 2025. Bain has executed two large secondary sales since then totaling approximately $5.6–5.8B in proceeds. Toshiba has not yet sold.
SK Hynix’s bonds have a different governance restriction: voting rights capped at ~15% through 2028, not a standard IPO lock-up. SK Hynix has not sold any Kioxia shares through April 2026 per available reporting.
| Metric | Value |
|---|---|
| Share price (Apr 24, 2026) | ¥34,580 |
| All-time high | ¥36,870 (Apr 14, 2026) |
| Shares outstanding | ~546 million |
| Market cap | ~¥18.9 trillion (~$126B at ¥150/$1) |
| Enterprise value | ~¥19.9 trillion |
| P/E (trailing) | ~113x |
| P/E (forward) | ~7.8x (based on strong FY2025 guidance) |
The stock has surged approximately 23.8x from its IPO price of ¥1,455 to ~¥34,580. This reflects the AI-driven NAND demand boom and the company’s rapid return to profitability after the 2022–2023 downturn.
| Fiscal Year | Revenue | YoY | Net Income | Net Margin |
|---|---|---|---|---|
| FY2023 (ended Mar 2024) | ¥1,077B | — | Loss | Negative |
| FY2024 (ended Mar 2025) | ¥1,706B | +58.5% | ¥272B | ~16% |
| FY2025 (ended Mar 2026) | ¥2,180–2,270B guidance | +28–33% | ¥460–520B (guidance) | ~21–23% |
FY2024 highlights: - Data center/enterprise SSD revenue surged ~300% YoY - Net debt/equity improved from 277% (FY2023) to 126% (FY2024)
FY2025 Q3 (Oct–Dec 2025): - Revenue: ¥543.6B, +21.3% QoQ, +20.8% YoY - Non-GAAP operating profit: ¥144.7B (26.6% margin), +66% QoQ - FCF: ¥85.7B (positive for 8 consecutive quarters)
Q4 FY2025 guidance (Jan–Mar 2026): - Revenue: ¥845–935B (massive sequential jump — AI data center demand surge) - Operating profit: ¥440–530B - Net income: ¥310–370B
If Q4 guidance is met, FY2025 full-year net income lands at ~¥460–520B — roughly 10x the FY2024 figure. This explains why the stock has re-rated so dramatically.
| Rank | Company | NAND Revenue Share |
|---|---|---|
| 1 | Samsung | 32.3% |
| 2 | SK Hynix | 19.3% |
| 3 | Kioxia | 15.3% |
| 4 | SanDisk (WD spin-off) | 12.4% |
| 5 | Micron | ~11% |
Kioxia holds the #3 position globally in NAND flash by revenue, with ~15% share. AI-driven demand has been the key driver of share gains.
Bain led a ¥2T (~$18B) buyout in 2018. The consortium held ~56–59% of the company after Toshiba’s retained 40.2% stake. Within the consortium, Bain itself (excluding LP co-investors like SK Hynix, DBJ, INCJ) held the majority of the GP/control position.
IPO-implied valuation vs. entry price: - Entry: ¥2T total deal / whole company implied value - IPO price (Dec 2024): ¥1,455/share × ~524M pre-IPO shares = ~¥762B total equity value - Kioxia IPO’d at less than half the 2018 deal price
This was a difficult outcome for Bain — the deal was done at the top of a cycle, NAND markets collapsed in 2019 and again in 2022–2023, and the WD merger exit path failed.
| Event | Price | Multiple vs IPO |
|---|---|---|
| IPO price | ¥1,455 | 1.0x |
| First block sale (Nov 2025) | ¥9,000 | 6.2x |
| Second block sale (Feb–Mar 2026) | ~¥20,000–25,000 (estimated) | ~14–17x |
| Current (Apr 2026) | ¥34,580 | 23.8x |
Note: The 14x figure cited in Korean media (Seoul Economic Daily, Mar 2026) refers to the stock price multiple from IPO to ~¥20,795 at the time of that article, not Bain’s return from the 2018 entry.
| Transaction | Shares Sold | Price | Gross Proceeds |
|---|---|---|---|
| IPO secondary (Dec 2024) | ~12.65M shares (estimate) | ¥1,455 | ~¥18.4B (~$123M) |
| Block sale 1 (Nov 2025) | 36M shares | ¥9,000–9,853 | ~¥325–355B (~$2.1–2.3B) |
| Block sale 2 (Feb–Mar 2026) | Estimated ~35–40M shares | ~¥20,000–25,000 (est.) | ~¥700–1,000B (~$3.5B) |
| Total realized to date | ~$5.7–5.9B |
Bain’s remaining ~28–30% stake (at ¥34,580/share, ~546M total shares) is worth approximately: - ~163M shares × ¥34,580 = ~¥5.6T (~$37B at ¥150/$1)
Total position value (realized + unrealized): roughly $43–44B
Against an original total deal cost of ~$18B (with leverage and co-investors), Bain’s pure equity IRR is exceptional given current prices — but the 6-year hold means the IRR compresses from what the multiples suggest on paper (the 2022–2023 downturn years were painful, and leverage servicing cost cash). The position is now a major PE success story, though it spent several years underwater relative to the 2018 enterprise value.
Bain is clearly in active exit mode — two large block sales already, and management specifically requested Bain sell more to hit the 35% float target. At current prices (~¥34,580), every 10% stake sold = ~¥950B (~$6.3B). Bain’s remaining ~28–30% is worth roughly ¥5.3–5.6T (~$35–37B) at current prices.
Given the 35% float requirement target, Toshiba (~27%) and Bain (~29%) together need to reduce their combined ~56% to ~65% float. This implies further significant sales from both. There is no reason for Bain to hold below current prices — the exit will be paced by market liquidity, not valuation thresholds.
Exact per-share entry cost (2018): Bain’s actual equity cheque and per-share equivalent are not publicly disclosed. The ¥2T deal included substantial debt financing and multiple co-investors; Bain’s direct equity capital is unknown.
Exact Bain IRR: Without the actual equity invested figure and the precise split between Bain-managed capital vs. co-investors (SK Hynix LP, DBJ, INCJ), a true IRR calculation is not possible from public sources.
Toshiba/JIP current precise stake: Post-Nov/Dec 2025 data from the IR page shows 27.25% as of Sep 30, 2025, but Toshiba has not sold material stakes through Q1 2026.
SK Hynix formal conversion: SK Hynix’s ~14% stake via convertible bonds may not yet be formally reflected as direct equity on the shareholder register. The 14% figure is widely cited but the conversion timing is not confirmed.
Q4 FY2025 actuals: Guidance points to a blowout quarter (¥845–935B revenue), but actual results have not been reported as of late April 2026.
The $112B US market cap figure in some search results appears inflated — likely using the OTC ADR price (KXIAY) and different share count methodology. The TSE-listed market cap at ¥34,580 × 546M shares = ~¥18.9T (~$126B at ¥150/$1). This still represents a dramatic re-rating.
| Kioxia (285A) | Micronics (6871) | |
|---|---|---|
| What you own | World’s #3 NAND maker, AI enterprise SSD ramp | Probe card consumable, HBM-leveraged |
| Layer of value chain | Fab (cyclical, capital-intensive) | Equipment/consumable (specialty, capital-light) |
| Market cap | $129B (mega-cap) | $3.5B (small-cap) |
| TTM rev growth | +21% | +26% |
| TTM op margin | 26% | 20% (24% on FY25) |
| TTM gross margin | 26% | 48% |
| Balance sheet | Net debt ¥1.0T | Net cash ¥12B |
| Beta | n/a (recent IPO) | 1.47 |
| Cyclicality | Severe (NAND -80%/+100% peak-trough EPS) | Moderate (-30%/+50%) |
| Quality verdict (3-test) | Vulnerable | Durable specialty |
| Governance | PE overhang (Bain ~28-30%, exiting) | Clean, no overhang |
| Distance from 52w high | -3.8% | -2.8% |
| Analyst PT premium | +5% (mean ¥37,214) | -26% (mean ¥9,900) — stock above mean |
| Coverage | Broad (15-22 analysts) | Thin (3-4 analysts) |
| Verdict at current price | PASS | WATCH |
| Better entry | <¥18,000 (-49%) | <¥10,500 (-21%) |
| Catalyst | 2026-05-15 earnings | 2026-05-13 earnings |
Both stocks are AI-memory-cycle plays. The bull case for both rests on the same three legs: 1. AI inference creates structurally higher NAND/HBM demand (KV cache + dataset loading) 2. Hyperscaler enterprise SSD + HBM3E/HBM4 ramps drive a 2-3 year up-cycle 3. Industry discipline (Samsung restraint, China contained) sustains margins
Kioxia is leveraged to NAND ASPs. When ASPs are up, Kioxia rips. When ASPs revert, Kioxia compresses fast (highest pure-play NAND beta of any listed peer).
Micronics is leveraged to NAND/HBM volume × test complexity. Probe cards are a per-die consumable; rising chip complexity (more pins, more KGD touchdowns) means probe-card revenue can grow even if NAND ASPs flatten. More volume-sensitive, less ASP-sensitive.
This is the key distinction. If you believe in AI memory volume continuing through 2027 but worry about Samsung breaking pricing discipline, Micronics is the cleaner expression. If you believe in continued NAND ASP elevation through 2027, Kioxia gets you maximum operating leverage.
| Metric | Kioxia 285A.T | Micronics 6871.T | Notes |
|---|---|---|---|
| Price | ¥35,470 | ¥13,360 | Both near 52w high |
| 52w range | ¥1,805 – ¥36,870 | ¥2,922 – ¥13,750 | Kioxia 19.6× off lows; MJC 4.7× off lows |
| Market cap | ¥19.3T (~$129B) | ¥518B (~$3.5B) | 37× size difference |
| EV | ¥19.8T | ¥474B | MJC has net cash |
| TTM Revenue | ¥1.7T | ¥70B | 24× size difference |
| TTM Rev growth | +21% | +26% | MJC growing faster |
| Gross margin | 26% | 48% | MJC structurally higher |
| Op margin (TTM) | 26% | 20% (24% FY25) | Kioxia higher on cycle peak; MJC structural |
| Net income margin | 9.9% | 17.2% | MJC nearly 2× Kioxia |
| FCF (TTM) | n/a (¥108B per yfinance) | -¥13.5B (WC build) | Kioxia FCF positive; MJC negative on ramp |
| Net debt / cash | ¥1.0T net debt | ¥12B net cash | MJC structurally cleaner |
| P/E trailing | 124× | 43× | |
| P/E forward | 7.8× (on ¥490B guide) / 39× (peak EPS) | 61× | |
| P/Sales | 11.5× | 7.4× | |
| P/Book | 19.7× | 7.8× | Kioxia book v. extreme |
| Cycle position | Peak | Peak | Both at risk |
| Insider ownership | 17.8% | 18.5% | Similar |
| Analyst PT mean | ¥37,214 | ¥9,900 | Kioxia +5%, MJC -26% |
| Analyst PT high | ¥62,500 (+76%) | ¥14,000 (+5%) | |
| Analyst PT low | ¥17,000 (-52%) | ¥5,800 (-57%) | Both have meaningful downside in low PT |
| Coverage | 15-22 analysts | 3-4 analysts | Kioxia broad; MJC thin |
| Earnings date | 2026-05-15 | 2026-05-13 | Both within 18 days |
| Distance from 50dMA | n/a | +17% | MJC extended |
| Distance from 200dMA | +194% | +72% | Kioxia massively extended |
| Dimension | Kioxia | Micronics |
|---|---|---|
| Margin durability through cycle | FY23 GM -12%, op -23% | FY23 GM 45%, op 14% (still profitable!) |
| Capital intensity | Heavy (fab) | Light (specialty assembly) |
| Customer concentration | Top-5 ~50-60% | Top-2 ~30-40% |
| Switching costs | Low (NAND is interchangeable across qual) | High (2-4mo qual cycle per chip) |
| Pricing power | Price-taker | Modest (technical complexity) |
| Disruption threat | YMTC (China) | Korean domestic + Chinese probe makers |
| Balance sheet flexibility | Net debt, refinanceable | Net cash, fortress |
| 3-test quality verdict | Vulnerable | Durable specialty |
Read: Micronics is the higher-quality business. Cycle-through margin profile, balance sheet, and customer stickiness all favor MJC. Kioxia is the more leveraged play.
| Dimension | Kioxia | Micronics |
|---|---|---|
| Ownership clean? | No — Bain ~28-30% selling, Toshiba/JIP ~27%, SK Hynix ~14% | Yes — diffuse |
| Insider transactions | None reported (limited disclosure) | None reported |
| PE overhang | Yes — multi-year sell-down | No |
| Strategic competitor on cap table | Yes — SK Hynix with veto rights to 2028 | No |
| TSE float compliance | Below 35% target until ~2027 | Above 35% |
| Board independence | Bain + Toshiba/JIP appointees + minority independents | Standard TSE Prime |
| Mgmt DD verdict | Yellow | Neutral (insufficient depth, no flags) |
Read: Micronics has materially cleaner governance. Kioxia’s PE-backed-IPO governance is a real overhang that compresses any rally. The market’s “premium” on Kioxia is despite this, not because of it.
Both stocks are at peak-cycle valuations. The question is what does the next 18 months look like.
| Kioxia | Micronics | |
|---|---|---|
| Bull upside | +27 to +41% | +27 to +50% |
| Bear downside | -50 to -65% | -32 to -51% |
| Risk/reward | Poor (1:1.5 to 1:2 unfavorable) | Better but still mixed (1:1 to 1:1.2) |
Both are unfavorable at current price. Micronics is less unfavorable.
Pink already holds JEM (6855.T) — Japan Electronic Materials, #5 global probe card, $2.5B mcap, similar HBM exposure to Micronics. Adding Micronics to a portfolio that holds JEM is substantial duplication of the probe-card thesis.
| Comparison | JEM (6855.T, held) | Micronics (6871.T, candidate) |
|---|---|---|
| Probe-card focus | Memory + logic | Memory + logic |
| HBM exposure | Direct | Direct |
| Geographic mix | Japan-centric, Korean memory dominant | Same |
| Position in screen | #8 ranked, structurally weakest held (P<MA50, -35% off high, but +33% annual EPS) | #3 ranked unheld, near 52w high |
| Market cap | $2.5B | $3.5B |
| Valuation | Cheaper | More expensive |
Honest read for Pink: if you want MORE probe-card exposure, the right answer is probably to add to JEM on the structural weakness rather than buy Micronics at peak. The two are not differentiated enough to justify a 2-stock portfolio in the same niche.
Counter-argument for buying both: if you believe HBM volumes structurally double through 2026-27, owning the two largest Japanese probe makers as a basket diversifies single-name execution risk (one loses a Samsung qualification → other potentially gains). But this is a smaller hedge than just sizing JEM correctly.
Both report within 2 days of each other (MJC May 13, Kioxia May 15). The print sequence creates an information arbitrage opportunity:
Trading playbook for someone wanting exposure: wait for both prints, then size into the weakest reactor (which is most likely to be MJC given thin coverage = surprise risk).
| If your thesis is… | Best expression |
|---|---|
| AI-NAND ASP elevation through 2027 | SanDisk (SNDK) — same JV exposure as Kioxia, no PE overhang, US-listed |
| AI-memory volume + test complexity | Add to JEM (6855.T) — already held, cheaper, similar HBM beta |
| Highest beta / maximum cycle leverage | Kioxia (but only on a major pullback to <¥18,000) |
| Specialty quality with HBM optionality | Micronics (but only on pullback to <¥10,500) |
For Pink specifically: the cleanest action is none of the above today. Both stocks are at peak; Pink already holds the cheaper probe-card analog (JEM); the AI-NAND thesis has a cleaner expression (SNDK). The screen flagged both as “deserve a deep-dive” and the deep-dives reveal: the deep-dives confirm the thesis but disqualify the entry.
wiki/285A/285A.mdwiki/6871/6871.mdNeither is a buy today. The screen correctly flagged the quality of both, but the entry has been ruined by the 12-month rip. Watch both, prep size, deploy on the next cycle pause or post-print pullback.
If forced to pick one to enter: Micronics — better quality, better balance sheet, cleaner governance, less downside. But still better to wait for ¥10,500.