Knowledge Base

Frequently Asked Questions

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Polygon.io serves both professional and non-professional users. The professional status is determined once you sign up on the website and complete a small list of questions.
Jan 25, 2023

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We do not remove companies that have been delisted from the exchanges. We store the market data exactly as it happened on that date in time.
Jan 18, 2023

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If no trades occurred during an aggregate period, then no aggregate bar will be generated. For tick data, if no trades occurred, then no tick data would be available.
Jan 18, 2023

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Our market data is point-in-time, meaning the data is returned exactly as it happened on that date in time. We do not change the data or concatenate ticker changes into single aggregate series.
Jan 18, 2023

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Any trade that occurs will be included, even if it’s canceled. Canceled trades will be indicated by the Trade Correction field ‘e’.
Jan 18, 2023

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All data provided on Polygon is provided for informational purposes only, and is not intended for trading or investing purposes. Polygon provides all information as is. You must not redistribute information displayed on or provided by Polygon. Stock prices displayed in the ticker are from a subset of exchanges, this price does not represent the real-time price from the SIP.

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