Stock Ticker

finance.securities.tickersince finetype v0.6.49

Stock ticker symbol — the short exchange identifier for a listed security (AAPL, MSFT, BRK-B). 1-7 uppercase letters, optionally with a class-share suffix (BRK-B, BF.B). No check digit, and the shape confirms every short uppercase token (a US state code, a currency, an arbitrary code all clear it), so the published listed-symbol set is the substance (Precision Principle). US-listed for now (SEC company_tickers.json); other venues compose additively behind this same type.

Casts to

VARCHAR

Membership list

us tickers

Shape

Pattern

^[A-Z]{1,7}([./-][A-Z]{1,4})?$

Value	Length	Shape
AAPL	4	matches
MSFT	4	matches
NVDA	4	matches
BRK-B	5	matches
TSLA	4	matches
aapl	4	rejected: lower-cased

Detection notes

New in v0.6.49. Mined from the company-reference external band (EDGAR `ticker` was over-emitted as geography.location.state_code). No checksum; list membership is the substance. The 244-dim model does not predict it — recovered at profile time by the header-gated `ticker_membership_recovery` Sharpen guard (ticker/symbol header + >=90% set membership + >=3 distinct). The 2-letter state/ticker collision (MA, TX, … are both) is why the guard gates on the header, not membership alone.

In Meridian's open data

edgartickerconfidence 0.9
edgar_gleiftickerconfidence 0.9

Use it

CLI · DuckDB

$ finetype infer -i "AAPL" --mode column
→ finance.securities.ticker

SELECT ft_infer('AAPL');
-- → 'finance.securities.ticker'

Cast expression

CAST({col} AS VARCHAR)

Schema

https://meridian.online/schemas/finance.securities.ticker · Frictionless type string

finetype taxonomy finance.securities.ticker -o json-schema

Aliases

tickerticker_symbolstock_symbolsymbol