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Amundi S&P 400 US Mid Cap UCITS ETF AccIndex, costs, backtest, listings and taxation

ISIN: LU3104524593Ticker: MDUS (Xetra)Issuer: AmundiClass: UCITS ETF Acc
Issuer-declared data
Declared index
S&P 400 Net Total Return Index
TER
0.20%
Transaction costs
0.00% (issuer estimate, from the KID)
Management
Passive (index-tracking) (from the KID)
Replication
Income policy
SFDR
Article 6 — does not promote specific ESG characteristics what does it mean?
Fund assets
102.4 mln EUR
NAV
11.64 USD (1 September 2026)
Domicile
Luxembourg
Inception date
3 September 2025
Data as declared by Amundi in the issuer’s official files and endpoints · collected on 2 September 2026 (monthly refresh). Facts only, no recommendation.
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Description

Amundi S&P 400 US Mid Cap UCITS ETF Acc tracks the issuer-declared index: S&P 400 Net Total Return Index. The declared annual cost (TER) is 0.20%, plus 0.00% in transaction costs estimated by the issuer in the KID. Replication is synthetic replication (swap based); income is accumulated and reinvested in the fund. The fund has assets of about 102 million euro, was launched on 3 September 2025 and is domiciled in Luxembourg.

The fund’s objective — in the issuer’s words

This Sub-Fund is passively managed. The objective of this Sub-Fund is to track the performance of S&P MidCap 400 Index (the "Index"), and to minimize the tracking error between the net asset value of the Sub-Fund and the performance of the Index. The anticipated level of the tracking error, under normal market conditions, is indicated in the prospectus of the Sub-Fund. The Index is a Net Total Return Index, dividends net of tax paid by the index constituents are included in the Index return. The Index is an equity index which is distinct from the large-cap S&P 500 and that provides investors with a benchmark for mid-sized U.S. companies. The Index is composed of 400 constituent companies and is designed to measure the performance of mid-cap segment of the U.S market, reflecting the risk and return characteristics of this market segment. The Index is weighted by float-adjusted market capitalization. More information about the composition of the index and its operating rules are available in the prospectus and at: spdji.com. The Index value is available via Bloomberg (SP400NTR). The Sub-Fund will apply an Indirect Replication methodology to get exposition to the Index. The Sub-Fund will invest into a total return swap (financial derivative instrument) delivering the performance of the Index against the performance of the assets held. Derivatives are integral to the Sub-Fund's investment strategies.

Keep reading the KID section ▾

Intended Retail Investor:This product is intended for investors, with a basic knowledge of and no or limited experience of investing in funds seeking to increase the value of their investment over the recommended holding period with the ability to bear losses up to the amount invested.

Redemption and Dealing:The Sub-Fund's shares are listed and traded on one or more stock exchanges. In normal circumstances, you may deal in shares during the trading hours of the stock exchanges. Only authorised participants (e.g., selected financial institutions) may deal in shares directly with the SubFund on the primary market. Further details are provided in the MULTI UNITS LUXEMBOURG prospectus.

Distribution policy:As this is a non-distributing share class, investment income is reinvested. the accumulation share automatically retains, and re-invests, all attributable income within the Sub-Fund; thereby accumulating value in the price of the accumulation shares.

More Information:You may get further information about the Sub-Fund, including the prospectus, and financial reports which are available at and free of charge on request from: Amundi Luxembourg S.A. at 5, allée Scheffer 2520 Luxembourg, Luxembourg.

From the KID’s “Objectives” section · 8 August 2026 · original document ↓
Text generated from the data the issuer declares in official product lists. No recommendation.

Official documents

Key Information Document (KID)PDF in English, from the issuer’s site — always the latest filed versionProspectusPDF in English, from the issuer’s site — the fund’s full legal documentFactsheetPDF in English, from the issuer’s site — the fund’s monthly snapshot
The KID is the document the law requires you to read before investing: 3 pages covering risks, costs and scenarios. The link opens the issuer’s published PDF.

Fund performance

issuer-declared net asset value (NAV) · USD · from Sept 2025 to Sept 2026
Compare with another ETF
Only funds we hold a history for. Three at a time, at most.
Return
+16.4%
Annualised
+16.5%
Volatility (ann.)
15.3%
Max drawdown
-8.83%
-7%+1%+9%+17%+25%Sept 2025Dec 2025Mar 2026Jun 2026Sept 2026The break-even line: the value at the start of the period. Above it you are in gain, below in loss.break-even (0%)+16%Sept 2025Sept 2026
Note — currency risk: the fund is denominated (or hedged) in USD and the chart is in USD. For a euro investor, returns also depend on the EUR/USD exchange rate, up or down.
Tip: drag across the chart to zoom into a period.

Drawdown — distance from previous peak

This isn’t the return: it shows how far the fund is below its previous peak. 0% = you’re at the peak; below zero = how much you’re down and haven’t recovered yet.
0%-2%-4%-6%-8%-10%20252026−8.83% · 30 Mar 2026
Max drawdown
-8.83%
peak → trough
Trough
30 Mar 2026
from the 20 Feb 2026 peak
Recovery time
18 days
recovery only: trough to break-even
Underwater
56 days
decline + recovery: peak to break-even · → recovered on 17 Apr 2026

The five worst falls in the period

From the peak ofTroughDepthBack to break-evenDays underwater
20 Feb 202630 Mar 2026-8.83%17 Apr 202656
11 Sept 202520 Nov 2025-6.08%04 Dec 202584
14 Aug 202601 Sept 2026-5.20%ongoing25
06 May 202619 May 2026-4.27%02 Jun 202627
30 Jun 202629 Jul 2026-3.04%04 Aug 202635

Calendar-year returns

2025
1.6%
2026
14.5%

Month-by-month returns

JanFebMarAprMayJunJulAugSeptOctNovDecYear
20264.04.1-5.47.82.43.6-2.40.1-0.014.5
2025-0.52.00.11.6
From month-end NAVs, over the fund’s full history, on the series shown in the chart (dividends reinvested where declared). Deeper colour = larger move.
Source: Amundi. Issuer-declared historical series; inflation: Eurostat and national statistical institutes, latest available July 2026 — for later days the index stays at the last published value (institutes publish with a few weeks’ lag). The «adjusted for inflation» view expresses value in today’s purchasing power for the selected country; volatility always stays nominal, as elsewhere on the site (deflating it would add artificial swings caused by the monthly cadence of the price index). Past performance is not indicative of future results: these are facts, not a recommendation.

Risk indicators· EUR

Last year
Volatility (ann.)15.51%
Max drawdown-7.34%
Sharpe0.99
Sortino1.51
Windows longer than the available price history cannot be computed and are not shown: they will appear on their own as time passes. Computed from the daily NAV series, always in nominal terms. Sharpe and Sortino use the ECB main refinancing rate averaged over the period (last year: 2.21%), weighted by days in force, as the risk-free rate. Same formulas as our public methodology: sample standard deviation annualised over 252 days; Sortino with downside deviation. Past performance is not indicative of future results. Figures in EUR — series converted day by day at ECB reference rates; the table follows the currency selected in the chart.

Portfolio holdings

Securities in portfolio
30
Top-10 weight
58.9%

Top 10 holdings

META PLATFORMS INC-CLASS A · META UW
8.99%
SMURFIT WESTROCK PLC USD · SW UN
8.44%
TJX COMPANIES INC · TJX UN
8.19%
ABBVIE INC · ABBV UN
6.30%
NVIDIA CORP · NVDA UW
4.80%
GILEAD SCIENCES INC · GILD UW
4.61%
AUTOZONE INC · AZO UN
4.49%
CUMMINS INC · CMI UN
4.39%
ECOLAB INC · ECL UN
4.35%
DUKE ENERGY · DUK UN
4.34%
Download the full portfolio — Excel, 31 rows
Full portfolio declared by Amundi, as of 1 September 2026: this is the summary. Percentages may not sum to 100 due to cash, derivatives and rounding. Synthetic replication: the list shows the substitute basket (securities held as swap collateral), which can differ substantially from the replicated index. The fund’s economic exposure is that of its declared index.
Fund historyFund-assets (AUM) chart year by year and monthly basket snapshots.Open the history →

Italian taxation

Effective rate on capital gains
26.00%
White-list share
0.00%
From the government-bond («white list») share certified by the issuer every semester: 12.5% on that portion, 26% on the rest.
Deep-dive into this fund’s taxation →

Stock exchange listings

ExchangeTickerTrading since
Börse Düsseldorf29 Sept 2025
Börse Frankfurt24 Sept 2025
Börse Hamburg2 Dec 2025
Börse Hannover13 Nov 2025
Börse München / gettex24 Sept 2025
Börse Stuttgart10 Oct 2025
Tradegate Exchange2 Oct 2025
Xetra (Deutsche Börse)MDUS24 Sept 2025
+ 11 more trading venues (MTFs and professional platforms).
Trading venues from the official ESMA register (FIRDS); per-exchange tickers from the issuer’s tax documents and official listings. A dash “—” = that venue does not publish the item (ticker, currency or start date) in the sources we read. The same fund may trade in different currencies depending on the exchange: check the trading currency with your broker. Non-EU listings (e.g. UK, Mexico) not included.

Frequently asked questions

Which index does Amundi S&P 400 US Mid Cap UCITS ETF Acc track?
The issuer Amundi declares the benchmark: S&P 400 Net Total Return Index.
How much does MDUC cost?
The issuer-declared TER is 0.20% per year; the transaction costs estimated in the KID are 0.00%.
How is MDUC taxed in Italy?
On sale, the capital gain is taxed at an effective 26.00% rate (white-list share 0.00%): 12.5% on the government-bond “white list” portion, 26% on the rest.
What is the fund size of MDUC?
The fund size declared by Amundi is about 102 million euro.
When was MDUC launched?
The fund was launched on 3 September 2025: it has 1 year of history.
How does MDUC replicate its index?
It is a passively managed ETF: it follows the declared index. Synthetic (swap) (issuer wording: “Indirect(Swap Based)”).
Does MDUC pay dividends?
No: it is an accumulating share class — income stays in the fund and is reinvested automatically (issuer wording: “Capitalisation”).
Where does MDUC trade?
Per the official ESMA register it trades on 8 main exchanges, including Xetra (Deutsche Börse) (MDUS).
What was MDUC's worst fall?
Over the available history (since 2025), the maximum drawdown was -8.83%, reached in March 2026. Past performance is not indicative of future results.
How many securities does MDUC hold?
The declared portfolio holds 30 securities; the top 10 positions weigh 58.9%.
Transparency note
The data in this sheet is declared by Amundi in the issuer’s official files and endpoints, collected by Rebalix with a monthly refresh; taxation derives from the issuer’s tax documents (Italian Law Decree 138/2011). This is factual information for informational purposes only: it is not financial or tax advice, nor an investment recommendation. Read the fund’s KID and prospectus before investing.