Ticker universe

David uses real exchange-style ticker symbols as identifiers so your existing ticker lists, watchlists, and tooling work without translation. The data behind each symbol is synthetic (see Synthetic data), but the symbol itself, AAPL, NVDA, SPY, is real.

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Symbol normalization

Yahoo-style symbol forms are normalized automatically. For example BRK.B is accepted and resolved to BRK-B. Tickers are matched case-insensitively and uppercased in responses.

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Operating companies vs. non-operating instruments

David models two distinct kinds of listed entity, and they expose different datasets. This is intentional: an ETF has no income statement, so David returns an empty list rather than fabricating one.

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What non-operating instruments suppress

For tickers such as SPY, QQQ, IWM, DIA, TLT, GLD, closed-end funds, ETNs, warrants, units, rights, and preferred/depositary shares, the following operating-company datasets return empty lists:

• Financial statements (/financials/*)
• Earnings and earnings calendar
• KPI guidance and operating analyst estimates
• Issuer SEC-style filings
• Corporate actions
• Insider trades

They still serve: prices, benchmark/fund-flow news, instrument repricing events, benchmark/underlying metadata, and holdings.

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Discovering tickers

Most datasets expose helper endpoints that list the tickers actually present in a scenario, so you don’t have to guess:

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Next steps