Same ticker, different company: how often European tickers collide with US ones
Data as of · Last updated · By StockDashes
StockDashes counted the share and ETF listings on 8 European exchanges: 21.4% — 762 of 3,559, about 1 in 5 — trade under a ticker that, in the US, belongs to a different company or fund. LVMH is MC on Euronext Paris; MC in the US is Moelis & Company. A ticker names a listing on one exchange; the ISIN and the home listing say which security it is.
By exchange
Euronext Milan has the highest share (40.8%); Euronext Paris has the most listings whose ticker is a different US security (276).
| Exchange | Listings | Ticker is a different US security | Share |
|---|---|---|---|
| Euronext Paris | 1,501 | 276 | 18.4% |
| Euronext Amsterdam | 740 | 115 | 15.5% |
| Euronext Milan | 441 | 180 | 40.8% |
| SIX Swiss Exchange | 387 | 81 | 20.9% |
| Oslo Børs | 294 | 69 | 23.5% |
| Euronext Brussels | 123 | 26 | 21.1% |
| Euronext Lisbon | 48 | 13 | 27.1% |
| Euronext Dublin | 25 | 2 | 8.0% |
| All exchanges | 3,559 | 762 | 21.4% |
Well-known examples
Each of these European listings trades under a ticker that, on a US exchange, is another company.
| Company | Ticker | In the US, that ticker is |
|---|---|---|
| LVMH Euronext Paris | MC | Moelis & Company |
| Sanofi Euronext Paris | SAN | Banco Santander (US depositary shares) |
| Air Liquide Euronext Paris | AI | C3.ai |
| L’Oréal Euronext Paris | OR | OR Royalties |
| Vinci Euronext Paris | DG | Dollar General |
| UCB Euronext Brussels | UCB | United Community Banks |
| Generali Euronext Milan | G | Genpact |
Why a ticker isn’t enough
A ticker is the short code an exchange gives a listing, and it is unique only on that exchange. The same letters can belong to another company on another exchange — and when no exchange is given, most websites and apps assume a US ticker.
The ISIN names the security
An ISIN is a 12-character code that names one security worldwide: two letters for the country where it was issued, nine characters for the security and a check digit. LVMH’s is FR0000121014, on every exchange where it trades.
The home listing names where it trades
The exchange plus its ticker — MC on Euronext Paris — names one line of that security, in that exchange’s currency.
A similar name isn’t proof
Two companies can share a name and a ticker and still be separate companies. The ISIN settles it.
What to check in your own portfolio
- Your broker’s statement lists each holding’s ISIN: that is the code to look a holding up by.
- When a website shows a ticker, check the exchange and the company name next to it before reading its figures.
- A US line of a European company — a depositary share — has its own ticker and often a ratio of shares per unit. It is the same company on a different line.
StockDashes identifies a European holding by its ISIN, never by its bare ticker. Where the same security has a US listing, that line is used; where it has none, the page shows no data rather than another company’s.
How these figures are counted
Every share and ETF listing on Euronext Paris, Euronext Amsterdam, Euronext Milan, the SIX Swiss Exchange, Oslo Børs, Euronext Brussels, Euronext Lisbon and Euronext Dublin, from the exchanges’ own public instrument lists, compared with the public lists of US-listed and over-the-counter symbols. A listing counts when its ticker is also a US symbol for a different company or fund. When that US symbol is the same company — a depositary share or a US line of the same shares — the listing is counted separately (42 listings), not as a collision. Listings of US securities (a US ISIN) aren’t counted. The figures are rebuilt every week; these are as of 26 Oct 2026.
Frequently asked questions
What is a ticker collision?
Two different securities that trade under the same ticker on different exchanges. LVMH is MC on Euronext Paris; MC in the US is Moelis & Company.
How often do European tickers collide with US ones?
21.4% of the listings counted here — 762 of 3,559 across 8 European exchanges — have a ticker that is a different US security (data as of 26 Oct 2026).
Which code identifies a security: the ticker or the ISIN?
The ISIN. It names one security worldwide, while a ticker names a listing on one exchange. The ISIN together with the exchange and ticker of the home listing pins down exactly what you hold.
Does the same company name mean the same company?
Not always. Two companies can share a name and a ticker and still be separate companies. Only the ISIN settles it.
Figures from public exchange listings, as of 26 Oct 2026. Company names and tickers are shown as examples of how tickers overlap. Nothing on this page is investment advice.