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Yahoo Finance is a media property that is part of the Yahoo network. It provides financial news, data and commentary including stock quotes , press releases , financial reports , and original content.
The securities listed on Nasdaq can be quoted and traded from any US exchange. Trades and quotes on these securities are distributed on two separate feeds, the UTP Quotation Data Feed (UQDF) and the UTP Trade Data Feed (UTDF). UQDF provides traders a direct view of an NBBO. These feeds are considered level 1 or the top-of-book.
A financial data vendor provides market data to financial firms, traders, and investors. The data distributed is collected from sources such as stock exchange feeds, brokers and dealer desks or regulatory filings (e.g. an SEC filing).
While price data generally originates from the exchanges, reference data generally originates from the issuer. Before investors and traders receive price or updated reference data, financial data vendors may reformat, organize, and attempt to correct obvious outliers due to data feed or other real-time collection based errors. [3]
StockTwits allows users to communicate to Ticker Streams in real time with the use of cashtags. Users are also able to communicate directly using the "@" symbol before a username, a feature seen on Twitter. Content featured on StockTwits can also be shared to the StockTwits extended network which includes sites such as Yahoo Finance and CNN Money.
Therefore, another system is needed. Real-time databases may be modified to improve accuracy and efficiency and to avoid conflict, by providing deadlines and wait periods to insure temporal consistency. Real-time database systems offer a way of monitoring a physical system and representing it in data streams to a database. A data stream, like ...
A securities information processor (SIP) is a part of the infrastructure of public market data providers in the United States that process, consolidate, and disseminate quotes and trade data from different US securities exchanges and market centers. [1]
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