KoAct 미국치매&뇌질환치료제액티브 (490330) holdings & weights
Per-holding contribution · concentration · sector skew — a deep read
Fund overview
This is a Korea-listed ETF from 삼성액티브자산(ETF). It tracks the Solactive 미국뇌질환치료제 PR 지수. Key facts — expense ratio 0.5%; net assets about KRW 4.27B; inception 2024-09-03. Its 1-year return is +15.82%.
Fund details
Fund overview
This is a Korea-listed ETF from 삼성액티브자산(ETF). It tracks the Solactive 미국뇌질환치료제 PR 지수. Key facts — expense ratio 0.5%; net assets about KRW 4.27B; inception 2024-09-03. Its 1-year return is +15.82%.
7 identified stocks · net exposure / NAV 30.36%. Display weights are normalized to 100%; calculations retain original exposures without an additional leverage multiplier. Cash and unallocated contracts are excluded from stock attribution.
Weight and calculation basis
7 identified stocks · net exposure / NAV 30.36%. Display weights are normalized to 100%; calculations retain original exposures without an additional leverage multiplier. Cash and unallocated contracts are excluded from stock attribution.
Investor net buying
Latest-session net buying by foreigners, institutions and retail (positive = net buy, negative = net sell).
| Date | Change | Foreign | Inst. | Retail |
|---|---|---|---|---|
| 10/20 | -0.04% | 0 sh | +315 sh | −315 sh |
| 10/19 | -1.09% | 0 sh | +71 sh | +218 sh |
| 10/16 | +0.98% | 0 sh | −360 sh | +531 sh |
| 10/15 | +1.11% | 0 sh | −4.0K sh | −484 sh |
| 10/14 | -3.03% | 0 sh | −88 sh | +88 sh |
Investor flows
Investor net buying
Latest-session net buying by foreigners, institutions and retail (positive = net buy, negative = net sell).
| Date | Change | Foreign | Inst. | Retail |
|---|---|---|---|---|
| 10/20 | -0.04% | 0 sh | +315 sh | −315 sh |
| 10/19 | -1.09% | 0 sh | +71 sh | +218 sh |
| 10/16 | +0.98% | 0 sh | −360 sh | +531 sh |
| 10/15 | +1.11% | 0 sh | −4.0K sh | −484 sh |
| 10/14 | -3.03% | 0 sh | −88 sh | +88 sh |
We have this ETF's holdings, but the prices for those particular listings are outside our quote coverage (currently Korea- and US-listed securities). So today's contribution and return are not computed — showing 0% would claim it did not move, which is a different statement. The holdings and weights below follow the calculation basis above.
Today's summary
Its top 10 holdings make up about 100.0% of the fund. The concentration index (HHI) is 2392 — Moderate, and the largest sector is Unclassified (100%). The higher the concentration, the more one stock or sector drives the whole ETF's return.
Structural health
A five-axis read on how this fund is built. It is not a return forecast or a recommendation, and a low score does not mean a bad fund — leveraged products score low by design. Each axis shows the figure behind it.
Concentration sits in the 1,500–2,500 band (2,392) — moderate.
Unclassified alone is 100%. This is effectively a bet on that one industry — if the sector falls, diversification will not help.
0.5% a year is typical. Held ten years, roughly 5.0% goes to fees.
Net assets of KRW 4.3B are small. Thin funds trade at wider spreads, and very small ones get closed or merged.
A plain 1x physical fund holding the shares themselves — no structural drift from how long you hold it.
Concentration and diversification
Structural health
A five-axis read on how this fund is built. It is not a return forecast or a recommendation, and a low score does not mean a bad fund — leveraged products score low by design. Each axis shows the figure behind it.
Concentration sits in the 1,500–2,500 band (2,392) — moderate.
Unclassified alone is 100%. This is effectively a bet on that one industry — if the sector falls, diversification will not help.
0.5% a year is typical. Held ten years, roughly 5.0% goes to fees.
Net assets of KRW 4.3B are small. Thin funds trade at wider spreads, and very small ones get closed or merged.
A plain 1x physical fund holding the shares themselves — no structural drift from how long you hold it.
Top 7 holdings
16 derivative positions are excluded. Stock contributions do not explain the entire ETF return.
Weights are normalized to 100% of absolute exposures across analysed positions, including positions outside this top list. Cash, collateral and unverified assets are excluded. Contributions retain original signed NAV exposures; leverage is not applied twice.
Normalized to 100% of analysed positions
Weights are normalized to 100% of absolute exposures across analysed positions, including positions outside this top list. Cash, collateral and unverified assets are excluded. Contributions retain original signed NAV exposures; leverage is not applied twice.
| # | Holding | Weight |
|---|---|---|
| 1 | 042251042251 | 38.57% |
| 2 | 010696010696 | 19.43% |
| 3 | 131971131971 | 16.80% |
| 4 | 183521183521 | 13.64% |
| 5 | 684591684591 | 6.95% |
| 6 | 528281528281 | 2.37% |
| 7 | 324571324571 | 2.24% |
Holdings below 0.5% or outside the top list are folded into “Others” and omitted above.
Where the weight sits — sector mix
Listed equity weights summed by sector and normalized to 100%. Each band is one sector's share.
HHI sums the squared weights. The more it leans on a few names, the higher it goes — and the more the whole ETF moves with them.
How concentrated is it
KoAct 미국치매&뇌질환치료제액티브 leans heavily on a handful of names. Its concentration index (HHI) is 2392, and the top 10 holdings make up 100.0% of equity weight — closer to owning a few stocks than a diversified basket.
If you bought it for diversification, note that when one or two of those names move sharply, most of the fund's day comes from them.
HHI squares each weight and sums them: 10,000 means one stock is everything, and the more evenly spread the holdings, the closer it falls to zero.
Where the sector weight sits
By sector, Unclassified alone is 100% — whatever the fund is called, this is a bet on that industry.
Bad news for the sector moves the whole fund. Worth checking against anything else you hold in the same space.
Weights above sum the individually listed equities and normalize that equity total to 100%.
How much it overlaps others
Even its closest peer, 485810, overlaps only 3% (3 shared names).
Funds filed under the same label can hold quite different companies, so pairing this one with another may genuinely spread risk.
What it is made of
The fund holds 23 positions in total; this page lists the largest 7 and folds the rest into "Others".
Equities are 30.4% of the fund, the rest swaps and cash — index exposure built synthetically rather than by owning the shares, which adds counterparty risk.
The expense ratio is 0.5% a year, which is not cheap. Fees come out of returns every year you hold, so it is worth checking whether the same index is available for less.
This page is not investment advice. Investment decisions and responsibility are your own.
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