Nasdaq Stockholm (OMX Stockholm)
Sweden's primary stock exchange and the largest of the Nasdaq Nordic markets; benchmark index is the OMXS30.
- MIC (ISO 10383)
- XSTO
- Country
- Sweden
- Type
- Stock exchange
- Trading currency
- SEK
- Timezone
- Europe/Stockholm
- Operator
- Nasdaq, Inc.
- Operator LEI
- 549300KBQIVNEJEZVL96 (GLEIF)
Trading session local time · Europe/Stockholm
Session hours and the settlement cycle are compiled by Finance Foundation from the venue’s own published trading calendar. These are exact and change-prone — an extended session or a moved auction dates a figure like this quickly — so each row below carries what two independently maintained open calendars say about the same venue. Verify against the exchange before relying on any of it operationally. Sources.
Two independently maintained open calendars return the same hours as we hold. Cross-check from exchange_calendars (Apache 2.0) and pandas_market_calendars (MIT); neither endorses this site.
- Regular session
- 09:00–17:30
- Lunch break
- none
- Settlement cycle
- T+2
Ownership
- Operating entity
- Nasdaq Stockholm Aktiebolag SE
549300KBQIVNEJEZVL96
Not the name this venue trades under. Nasdaq, Inc. is the group; the entity above is the one the ISO 10383 registry binds XSTO to, and the one that legally runs this market. - Ultimate owner
- NASDAQ, INC.
549300L8X1Q78ERXFD06 via GLEIF ultimate-parent relationship - Sibling venues
- Nasdaq Stock Market, Nasdaq Copenhagen, Nasdaq Helsinki — run by the same group
- Owner listed
- NDAQ on Nasdaq Stock Market
Self-listed — its own shares trade on a market it operates. - Who holds it
- Dispersed, but with three near-10% blocks that are unusual for a US exchange group — Vanguard 10.5%, Investor AB 10.3% and Borse Dubai Limited 10.3% — and Nasdaq's charter caps any shareholder's votes at 5% of total voting power regardless of holding.
Segment MICs 4 venues under XSTO
| MIC | Segment / venue |
|---|---|
| FNSE | Nasdaq First North Sweden |
| SSME | Nasdaq First North Sweden - SME Growth Market |
| DSTO | Nasdaq Stockholm - Nordic@Mid |
| MSTO | Nasdaq Stockholm - Auction on Demand |
Operating MIC vs segment MIC per ISO 10383: the operating code identifies the exchange, segment codes identify its individual order books, growth markets and derivatives venues. Every code was checked line by line against the official ISO 10383 registry file (SWIFT is the registration authority) — codes that were expired or belonged to a separate operating venue were rejected.
Benchmark indices
OMX Stockholm 30 (OMXS30) · OMX Stockholm All-Share (OMXSPI) · OMX Nordic 40
0 of these 3 are covered as assets here and link through; the rest are named because the venue publishes them, not because we track them. A linked index is a real relationship in the dataset, not a name that happened to match.
Top companies by market cap covered set · 1
| Company | Ticker | Sector | Mkt cap ≈ |
|---|---|---|---|
| Atlas CopcoIndustrial compressors and vacuum equipment | ATCO A | Industrials | $103bn |
Approximate reference values from public sources · seed-0.7 · marketcap-1 · 2026-08-30 · not real-time. See data & methodology.
JSONCSV No key, CORS enabled — paste any of these straight into a notebook.