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Corporate Events returns registry-level corporate actions for one company: stock splits, mergers and ticker changes. Each observation is one action with its effective date. These are the structural events that change what a company’s identifiers and price series mean.
Plan: Free and above · Credits: 1 per call

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What You Can Use Corporate Events For

Adjust a price or share-count series correctly across a split. Explain a discontinuity in a ticker-keyed dataset. Trace a company through a merger or a re-listing. Decide whether an apparent 50% price drop was a market move or a two-for-one split.

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Why Corporate Events Matter for Price Series

A stock split changes the price and the share count without changing the company’s value. A series that is not split-adjusted therefore shows a large apparent move on the split date, which reads exactly like a market event. Market capitalisation is unaffected by a split, which is why it is the reliable check: if the price halved but the market cap did not, the cause was a split, not a sell-off.

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Corporate Events Date Convention

Each action carries the date it took effect. A ticker change takes effect on the date the new symbol began trading, which is also the boundary between two rows in Company Listings.

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Corporate Events Sources

Corporate actions come from exchange and regulator notices. They are structural registry facts, not extracted from news. This layer is sparsely populated today (history_status: "partial" in the coverage block). An empty data array means no action is recorded for the company — it is not evidence that none ever happened. For ETF share splits, which are fully adjudicated, see ETF Splits.

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Query Corporate Events

Use the company events endpoint with a canonical company_id.
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string
required
Canonical company id, for example cmp_008395.
This endpoint is not the live news event feed. For what is happening to a company right now — filings, wires and IR disclosures aggregated into labelled events — see Company News Events.
See also Company Listings for the symbol history a ticker change produces, Daily Prices and Market Cap for the series a split affects, and 8-K Events for structured events extracted from SEC filings.