Every corporate action, for every position
Splits, spin-offs, mergers, delistings and name, ticker and ISIN changes for stocks, ETFs and funds. The Corporate Actions API keeps positions, prices and performance correct when securities change.
Corporate actions
Impact on a position
Stock split · 1 → 10Before
10 Nvidia shares
NVDA · US67066G1040
After
100 Nvidia shares
Price per share ÷ 10, value unchanged
- Type
- Forward split
- Ratio
- 10 for 1
- Effective date
- 10 Jun 2024
- ISIN
- Unchanged
Corporate actions, explained
What are corporate actions?
Corporate actions are events initiated by a company or fund that change its securities: the number of shares, the security itself, or what a holder receives. A stock split multiplies the shares, a spin-off hands out shares of a new company, a merger swaps a position for cash or other shares. In German they are called Kapitalmaßnahmen.
Missing a single corporate action breaks a portfolio: share counts no longer match, price charts show false crashes and performance figures are wrong. The Elbstream Corporate Actions API delivers every event in a structured form, so your systems fix these problems automatically before a customer ever sees them.
Without corporate action data, and how Elbstream fixes it
Wrong share counts
After a split or spin-off the depot no longer matches what the customer actually holds.
Positions stay correct
Ratios and new securities come with every event, so share counts are adjusted automatically.
False price drops
Unadjusted charts show a crash on the day of a split that never happened.
Clean price history
Split ratios and effective dates let you adjust historical prices and charts precisely.
Broken performance
Returns are wrong when spin-offs, cash payments or mergers are not booked.
Correct returns
Cash amounts and resulting securities of every deal are included, so performance stays right.
Orphaned positions
Delisted securities and changed ISINs leave positions without prices or data.
Every position mapped
Delistings and old-to-new ISIN and ticker links keep every position connected to its data.
Event types
Splits, spin-offs, mergers and more
A complete corporate actions database for stocks, ETFs and funds, with historical events and new ones as they are announced.
Stock splits
Forward splits with their exact ratio, so share counts and historical prices can be adjusted.
Reverse splits
Share consolidations that reduce the number of shares, including the ratio applied.
Spin-offs
New securities handed out to existing holders, with the ratio and the ISIN of the new company.
Mergers & acquisitions
Cash and share deals, with the consideration per share and the resulting securities.
Delistings
Securities that stop trading, so positions can be closed or flagged correctly.
Name & ticker changes
Renamed companies and new ticker symbols, with old and new values side by side.
ISIN changes
When a security gets a new ISIN, the link between old and new keeps the history intact.
Fund events
Mergers, splits and closures of ETFs and funds, which change positions just like stock events.
Structured data
Everything needed to adjust a position
Every event is structured so your systems can apply it automatically: which security, what happens, in which ratio, from when, and which securities or cash come out of it.
- Stocks, ETFs and funds in one database
- Complete event history plus new events as they are announced
- Old and new ISIN, ticker and name for every change
- Ratios and cash amounts ready to apply to positions
- Event type
- Split, reverse split, spin-off, merger, delisting, name, ticker or ISIN change.
- Security
- ISIN, WKN, ticker and name of the affected security.
- Key dates
- Announcement date, ex-date and effective date.
- Ratio
- Old to new shares, for splits, reverse splits and spin-offs.
- Cash amount
- Consideration per share and currency for cash deals.
- Resulting securities
- New ISINs and tickers created by the event.
- Before & after
- Previous and new name, ticker and ISIN.
Use cases
Built for banks, brokers and portfolio platforms
Depot & position keeping
Apply splits, spin-offs and mergers to customer positions automatically and keep share counts right.
Performance & returns
Calculate returns and total return correctly across corporate actions, for every portfolio.
Adjusted price history
Adjust historical prices and charts for splits, so long-term charts stay accurate.
Customer notifications
Tell customers what happens to their holdings when a corporate action is announced.
One provider
Corporate actions that match the rest of your data
Every Elbstream dataset is keyed by ISIN. Corporate actions line up with dividends, holdings, news and logos without mapping tables in between.
Made and hosted in Germany
Financial data you can put in front of a compliance team
Elbstream is a German company. Our APIs and data are hosted in Germany, DORA- and GDPR-compliant, so banks and brokers in Europe can sign off quickly.
Security & compliance- Hosted in Germany
- APIs and data run on servers in Germany.
- German company
- Elbstream Data GmbH, Hamburg.
- DORA & GDPR
- Compliant, with no personal data processed.
- Support in English & German
- Talk to the team that builds the data.
Keep every position right, automatically
Banks, brokers and portfolio platforms use the Corporate Actions API to process splits, spin-offs and mergers without manual work. Tell us about your setup.
Frequently asked questions
Corporate actions are events initiated by a company or fund that change its securities or what holders receive, for example stock splits, reverse splits, spin-offs, mergers and acquisitions, delistings, and name, ticker or ISIN changes. In German they are known as Kapitalmaßnahmen.