Data Sources
Ticker support lookup, provider families, .SIM methodology, and drift interpretation.
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Use this page to answer:
- Is this ticker or workflow already supported?
- Should you use live data, a .SIM ticker, a generated input, a Research Ticker, or an uploaded series?
- If a .SIM ticker exists, how was it built and how closely does it track the live ETF?
SIM catalog
.SIM tickers use the naming convention TICKER.SIM. Examples include VLV.SIM, TLT.SIM, and UPRO.SIM. They extend or model histories for assets that did not exist as ETFs in earlier decades. Some reconstruct a fund's returns before its ETF began trading, then use actual ETF data after inception. Others model an index or asset class without a listed-fund handoff. The catalog shows each series' reference fund, source, and method.
Access depends on your plan. See Plans and limits.
Ticker lookup
Enable JavaScript to look up a ticker or inspect the live .SIM catalog. The source families and construction methods below are available without it.
Inspect a .SIM ticker
Select a .SIM ticker to view its methodology, data sources, and comparison with the ETF since inception. The chart shows cumulative return differences. Whether the fit meets your needs depends on your analysis.
Provider families
Source families and historical coverage vary by ticker and series. Use ticker lookup to inspect availability and timeline. For .SIM tickers, select a catalog row to review its source lineage and methodology.