KOSDAQ Premium 70-Name League: 30 Core Candidates Passive Money Will Watch First

The official KOSDAQ premium 70-name list has not been released yet, but KRX Global criteria plus market cap, turnover, fundamentals and governance narrow the first 30 core candidates. The key is not simply market cap, but which KOSDAQ names passive money can actually own.

Connected context
This is a follow-up to The Complete KOSDAQ Guide, National Growth Fund and KOSDAQ Smart Money, Why Is KOSDAQ Falling If Foreigners Are Buying?, and Korea Foreign-Investor Playbook: KOSPI 168, KOSDAQ 355. Those posts covered KOSDAQ market reform, policy capital, foreign flow and institutional real money. This post narrows the next question: if the premium 70-name league becomes a passive-flow event, which KOSDAQ stocks should investors watch first?

TL;DR

The official 70-name list has not been published. This is not a confirmed inclusion list. The framework combines the reported direction of a tighter 70-company premium league, the existing KRX KOSDAQ Global Segment criteria, and Thesis OS data on market cap, trading value, foreign ownership and current KOSDAQ Global inclusion.

  • Thirty names look hard to exclude from a 70-name premium league. The core group includes Alteogen, EcoPro BM, EcoPro, Rainbow Robotics, major semiconductor equipment/materials/substrate names, biotech platforms, medical-aesthetic compounders and entertainment leaders.
  • The screen is not just market cap. The useful filter is market cap plus turnover plus KOSDAQ Global status plus likely fundamental and governance eligibility.
  • Event alpha may sit less in names already inside KOSDAQ Global and more in large, liquid and representative names that are not yet in KOSDAQ Global: Rainbow Robotics, EO Technics, Jeju Semiconductor, Hana Micron, Dongjin Semichem, ISC, Eugene Technology and Seojin System.

If the KOSDAQ premium 70-name league becomes an index and ETF event, the market is likely to price 70 institutionally ownable KOSDAQ leaders, not the whole KOSDAQ market.

1. Why 70 matters

Seoul Economic Daily reported that Korea’s planned KOSDAQ premium league is being discussed as a tighter group of 70 companies, down from earlier ranges such as 80 to 170 or fewer than 100. Seoul Economic Daily

Seventy names would represent roughly the top 4% of about 1,800 KOSDAQ listings. That compression creates two effects. First, the premium league becomes a possible benchmark universe for pensions, institutions and ETFs. Second, inclusion and exclusion start to matter. A 170-name list is a broad quality list. A 70-name list is a first division.

The constraint is clear: there is still no official list and no final methodology. The job now is to prepare a candidate map before the official list arrives.

2. Existing KRX Global criteria are the starting point

The closest existing framework is the KRX KOSDAQ Global Segment. KRX uses market evaluation, operating performance, research performance and governance transparency. The standard route includes KRW 500 billion market cap or top 7% status, plus operating profit of at least KRW 30 billion or revenue of at least KRW 300 billion. Research-driven biotech companies have separate criteria. KRX also requires governance grades of B or better from at least two evaluators. KRX KOSDAQ Global rules

FilterInvestor meaning
Market capRepresentative size for passive products
Trading valueEnough liquidity for rebalancing
Earnings or revenueThe league cannot be only a theme basket
Current KOSDAQ Global inclusionPrior institutional validation
GovernanceMinimum pension and institutional acceptability
Sector representationSemis, biotech, batteries, robotics and entertainment define KOSDAQ

3. The 30 core candidates

RankCompanyCodeSegmentInclusion logic
1Alteogen196170Biotech platformTop KOSDAQ market cap, KOSDAQ Global, technology-transfer platform
2EcoPro BM247540Battery materialsKey battery-materials leader with dominant size and liquidity
3EcoPro086520Battery holding companyRepresentative battery holding/materials beta
4Rainbow Robotics277810RoboticsKorea robotics leader and symbolic premium-league candidate
5Jusung Engineering036930Semiconductor equipmentAI semiconductor equipment leader with strong liquidity
6Wonik IPS240810Semiconductor equipmentKOSDAQ Global, equipment representative, earnings recovery
7Leeno Industrial058470Test socketQuality compounder with high ROE and margins
8HPSP403870Semiconductor equipmentHigh-pressure hydrogen annealing leader
9EO Technics039030Semiconductor equipmentHBM and laser-equipment representative
10Simmtech222800PCB/SOCAMMKey SOCAMM and substrate theme name
11PSK319660Semiconductor equipmentRepresentative equipment-cycle earnings name
12Jeju Semiconductor080220LPDDR/memoryLPDDR theme leader with heavy turnover
13Hana Micron067310OSATBack-end memory beta and earnings recovery
14Dongjin Semichem005290MaterialsLarge materials name with institutional access
15TES095610EquipmentKOSDAQ Global and improving equipment-cycle name
16Eugene Technology084370EquipmentDRAM/HBM capex beneficiary
17ISC095340Test socketAI memory test infrastructure
18Soulbrain357780MaterialsKOSDAQ Global quality materials leader
19TCK064760ConsumablesKOSDAQ Global, SiC ring and fab recovery
20Park Systems140860MetrologyHigh-margin precision-equipment leader
21LigaChem Biosciences141080ADC/biotechKOSDAQ Global biotech platform
22ABL Bio298380Biotech platformKOSDAQ Global biotech growth name
23PharmaResearch214450Medical aestheticsKOSDAQ Global, strong growth and margins
24Hugel145020Medical aestheticsLarge healthcare earnings name
25Classys214150Medical devicesQuality aesthetic-device compounder
26ST Pharm237690CDMO/RNAKOSDAQ Global CDMO/RNA representative
27Sam Chun Dang Pharm000250Pharma/biotechLarge pipeline and biosimilar option
28Seojin System178320AI infrastructureESS, telecom and server infrastructure platform
29JYP Ent.035900EntertainmentKOSDAQ Global entertainment earnings name
30SM Entertainment041510EntertainmentLarge KOSDAQ entertainment name

4. Where event alpha may appear

If this becomes a passive product, the more interesting set is not-yet-KOSDAQ-Global names that could enter the new premium basket.

CandidateWhy it mattersWhat to check
Rainbow RoboticsSymbolic robotics leaderWhether growth representation offsets near-term earnings filters
EO TechnicsHBM/laser equipmentWhether the new rules differ from KOSDAQ Global
Jeju SemiconductorLPDDR leader with high turnoverEarnings durability and crowding
Hana MicronOSAT and memory back-end exposureEarnings recovery and foreign-flow continuity
Dongjin SemichemLarge semiconductor-materials nameStability and governance eligibility
ISCAI memory test-socket exposureValuation pressure after re-rating
Eugene TechnologyDRAM/HBM equipment cycleOrder and earnings visibility
Seojin SystemESS, telecom and server infrastructureWhether it is recognized as AI infrastructure

5. Borderline and excluded names

GroupView
HLB, Kolon TissueGene, Peptron, D&D PharmatechLarge market caps, but more dependent on clinical or event outcomes. They may enter the full 70 if growth is weighted heavily.
Pearl AbyssSize and brand recognition are enough, but trailing losses and single-IP event risk keep it out of the core 30.
FADURepresentative AI storage story, but data quality, valuation and flow volatility keep it in the event bucket.
Low-liquidity theme stocksThey can react early, but turnover and governance are bottlenecks for passive inclusion.

6. Strategy

StepWhat to checkInterpretation
1Official listConfirm actual inclusion
2Index methodologyMarket-cap weighting, equal weighting, cap rule, rebalance timing
3Linked ETFs/fundsActual passive-buying capacity
4Post-inclusion flowForeign, investment-trust, pension and program-buying persistence

Before the official list, this is a candidate map, not a confirmed trade. The true event is the list plus index methodology plus linked products.

Final view

The KOSDAQ premium 70-name league is not a “buy the whole KOSDAQ” story. It is a policy event that can compress attention into KOSDAQ names that institutions and passive products can actually own. The current core 30 centers on semis, biotech, batteries, robotics, AI infrastructure and entertainment. The first event-alpha watchlist is narrower: Rainbow Robotics, EO Technics, Jeju Semiconductor, Hana Micron, Dongjin Semichem, ISC, Eugene Technology and Seojin System.

Evidence Ledger

ItemEvidence
Reported 70-name premium leagueSeoul Economic Daily report, June 17, 2026. Official list not yet public
Existing KOSDAQ Global criteriaKRX KOSDAQ Global Segment rules
KOSDAQ Global current inclusionKRX KOSDAQ Global constituent API, checked June 17, 2026
Price and foreign-ownership baselineThesis OS local DB, June 17, 2026
Feature-store baselineThesis OS feature store, June 16, 2026
Key limitation[Blocked] Official 70-name list, final index methodology, cap rule and linked ETF AUM are not yet confirmed
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