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Getting list of all tickers ever in NYSE and NASDAQ

Is it possible to obtain a list of all of the stock tickers that have ever been used in both NYSE and NASDAQ? I have tried searching the web and might have a potential solution with Mathematica's <...
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2 votes
1 answer
145 views

US Equity Real-time Market Data Feed Pricing

I'm trying to compare the minimum cost of subscribing to primary sources of real-time market data on NYSE and NASDAQ for last sale and level 1 top-of-book quotes. Use cases are log to files, store ...
1 vote
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Missing sequence numbers in TAQ Quote data

I am looking at NYSE sample TAQ Quote data for Apple stock (link at the bottom of the post) and I have noticed large discontinuities in the data intervals. For example, these two are two succesive ...