Helsinki Stock Exchange (HEX)¶

OVERVIEW¶

The Helsinki Exchange, officially known as Nasdaq Helsinki, is the primary securities exchange of Finland, facilitating the trading of equities, derivatives, and exchange-traded funds. Originally established in 1912 as the Helsinki Stock Exchange (Helsingin Arvopaperipörssi), the exchange merged with the Stockholm Stock Exchange in 2003 to form the OM HEX group, which was subsequently acquired by Nasdaq Inc. in 2008. Today, it operates as a fully integrated segment of Nasdaq Nordic. The exchange is heavily weighted by technology and industrial sectors, driven by Finland's dominant telecommunications and engineering ecosystems.

Tapeboard surfaces Helsinki-listed instruments across its scanner, charts, fundamentals, and macro modules — giving retail traders a single tab to research Finnish equities alongside global markets.

Note

Helsinki-listed stocks trade in euros (EUR). Tapeboard's forex module tracks the EUR/USD and other EUR crosses in real time, so currency exposure is visible alongside your equity position.

WHAT IS THE HELSINKI EXCHANGE¶

Attribute	Detail
Full name	Nasdaq Helsinki Ltd
Operator	Nasdaq Nordic
Country	Finland
Currency	EUR
Trading hours	09:00 – 17:30 EET (UTC+2) / 10:00 – 18:30 EEST (UTC+3 summer)
Primary index	OMX Helsinki 25 (OMXH25)
Regulation	Finnish Financial Supervisory Authority (FIN-FSA)
Market segments	Main Market, First North (growth companies)
Settlement	Two business days (T+2)

The exchange lists companies ranging from large-cap multinationals — Nokia, Kone, Nordea, Neste — to small and mid-cap Finnish growth companies on the First North alternative market.

Tip

Use Tapeboard's heatmap module filtered to Nordic sector ETFs to visualize capital flow into Finnish-weighted positions alongside the broader European market.

HOW IT IS CALCULATED AND STRUCTURED¶

Nasdaq Helsinki does not use a "formula" in the mathematical sense but operates on a centralized order book model matching buy and sell orders based on price-time priority. Its primary benchmark index is the OMXH25 (formerly known as the HEX25), which tracks the 25 most traded and liquid stocks on the exchange.

The OMXH25 is a capitalization-weighted index, meaning the weight of each constituent is determined by its free-float market capitalization relative to the total free-float market cap of all 25 companies. The index divisor is adjusted dynamically to account for corporate actions like share issuances, buybacks, and dividends, ensuring the index reflects pure price movement rather than capital redistribution. The base value of the index was set at 1,000 on December 31, 1999.

WORKED EXAMPLE¶

A trader wants exposure to the Finnish equities market without selecting individual stocks. They purchase an ETF tracking the OMXH25 index. The largest constituent of the OMXH25 is NOK (Nokia Corporation), representing a significant percentage of the total free-float market capitalization of the Finnish market.

If Nokia announces a blockbuster 5G infrastructure contract, its share price surges by 10%. Because Nokia holds a dominant weight in the OMXH25 index, this single stock movement exerts a disproportionate upward pull on the entire exchange benchmark. A trader holding the OMXH25 ETF will see their position appreciate in value, mirroring the aggregate performance of the top 25 Finnish equities without needing to manually rebalance a portfolio of individual Finnish ADRs.

WHEN TRADERS USE IT¶

Global traders and institutional investors use Nasdaq Helsinki to gain direct exposure to the Finnish economy and the broader Nordic macroeconomic environment. Retail traders utilize the exchange to invest in specific Finnish multinationals that dominate global telecommunications, forestry, and industrial machinery sectors. Algorithmic and quant traders access Nasdaq Helsinki via the Nasdaq Nordic INET trading platform, utilizing its colocation services to execute low-latency arbitrage strategies between Finnish equities and their corresponding ADRs (American Depositary Receipts) listed on the NYSE.

LIMITATIONS AND COMMON MISCONCEPTIONS¶

A common misconception is that the Helsinki Exchange offers broad European market exposure. In reality, Nasdaq Helsinki is highly concentrated and heavily reliant on a handful of mega-cap technology and industrial companies. A trader buying a broad Finnish index ETF is effectively making a concentrated bet on the Finnish telecommunications and industrial engineering sectors, rather than diversifying across the broader European economy. Furthermore, liquidity on Nasdaq Helsinki is significantly lower than on major US exchanges or the pan-European Euronext. Wider bid-ask spreads and lower daily volume can lead to increased slippage for retail traders executing large market orders.

KEY INDICES¶

Index	Description
OMXH25	25 most-traded stocks on Nasdaq Helsinki, cap-weighted
OMXHPI	All-share price index for Nasdaq Helsinki
OMXHCAP	All-share, capped to limit single-stock concentration
First North Finland	Growth-company segment benchmark

FEATURES¶

Tapeboard modules most relevant to researching Helsinki-listed equities:

Tapeboard Module	Relevance to HEX Research
Stock scanner	Screens gap-ups, unusual volume, and momentum across global listings including Nordic equities
Charts	Candlestick charts across timeframes with 44 indicators — RSI, MACD, Bollinger Bands, volume profile
Fundamentals	Financials, earnings estimates, insider transactions, and peer comparison for listed companies
Forex	EUR/USD, EUR/SEK, EUR/NOK, and G10 pairs at real-time rates — relevant for EUR-denominated positions
Economic data	800,000+ macro series including Finnish GDP, CPI, unemployment, and interest rate data
Bonds	Treasury and European yield curve data for rate-environment context
SEC filings	10-K, 10-Q, and 8-K search with AI summaries for dual-listed or ADR-accessible Finnish companies
Calendar	Earnings, dividend, and economic release dates
Insider trading	Form 4 and corporate buy/sell disclosures with MSPR analysis
Heatmap	S&P 500, Nasdaq 100, and sector ETF treemaps for cross-market context

MARKET STRUCTURE¶

Trading Segments¶

Main Market The primary listing venue for established Finnish companies meeting Nasdaq Helsinki's full regulatory and disclosure requirements. Companies listed here include Nokia (NOK), Neste, Kone, Fortum, and Nordea.

First North Finland A multilateral trading facility (MTF) for smaller and earlier-stage growth companies. Listing requirements are lighter than the Main Market. Companies on First North are assigned a Certified Adviser responsible for ongoing regulatory guidance.

Order Types and Session Structure¶

Session	Time (EET)	Description
Pre-open	09:00 – 09:00	Order entry, no matching
Continuous trading	09:00 – 17:25	Continuous order-book matching
Closing auction	17:25 – 17:30	Single-price closing auction
Post-trade	17:30 +	Reporting and settlement processing

MACRO CONTEXT FOR FINLAND¶

Tapeboard's economic data module carries 800,000+ macro series. Key Finnish and Eurozone indicators relevant to HEX-listed equities:

Indicator	Relevance
Finnish GDP growth	Domestic demand environment for consumer and industrial listings
Eurozone interest rates (ECB)	Discount rate for valuation; credit conditions for Finnish banks
EUR/USD rate	Currency translation risk for export-heavy companies (Nokia, Neste, Kone)
Finnish unemployment rate	Consumer discretionary sector signal
Eurozone CPI	Inflation pressure on operating margins
Nordic energy prices	Direct input for Neste, Fortum, and utility-sector positions

Tip

Open the Tapeboard economic data module, search Finland GDP or Eurozone CPI, and chart the series against your Helsinki-listed position to visualize macro correlation before entering a trade.

HOW TO USE¶

Research a Helsinki-Listed Stock on Tapeboard¶

Create a free account. Go to tapeboard.com and sign up — no credit card required. The full terminal loads in your browser with no install or setup.
Open the scanner. Use the real-time scanner with prebuilt presets or enter a ticker for a Helsinki-listed company. For dual-listed names such as Nokia, the US-listed ADR (NOK) is directly scannable.
Check fundamentals and filings. Open the fundamentals module for revenue, earnings estimates, insider transactions, and peer comparison. For companies with US ADR listings, search 10-K and 20-F filings with AI summaries in the SEC filings module.
Chart with 44 indicators. Load candlestick charts across daily, weekly, or intraday timeframes. Apply RSI, MACD, Bollinger Bands, or volume profile. Set alerts on any indicator condition — alerts fire even with the tab closed.
Check the macro backdrop. Pull Eurozone interest rate, Finnish GDP, or EUR/USD data from the economic data module. Chart macro series alongside price to assess rate sensitivity or currency drag.
Log your trade. The trade journal auto-logs entries and exits with P&L attribution, R-multiple, Tape Score, and screenshots. Free on all plans.

NOTABLE HELSINKI-LISTED COMPANIES¶

Company	Ticker (HEX)	US ADR	Sector
Nokia	NOKIA	NOK	Technology / Telecom equipment
Neste	NESTE	NTOIY	Energy / Renewable fuels
Kone	KNEBV	KNYJY	Industrials / Elevators
Nordea Bank	NDA-FI	—	Financials / Banking
Fortum	FORTUM	FOJCY	Utilities / Energy
Stora Enso	STERV	SEOAY	Materials / Paper and packaging
Metso	METSO	—	Industrials / Mining equipment