Glossary
Plain-language definitions of the trading-availability concepts that recur across buystock.net — written for investors deciding which broker to use, not for textbook study.
- 24-Hour Trading24-hour trading lets retail investors place orders on US equities outside the standard 9:30am-4:00pm ET session, typically Sunday evening through Friday evening.
- After-Hours TradingThe after-hours session is the window after the 4:00pm ET regular close when US stocks can still trade on lit exchanges — generally 4:00pm-8:00pm at retail brokers.
- American Depositary Receipt (ADR)An ADR is a US-traded security representing shares of a non-US company, issued by a US depositary bank that holds the underlying foreign shares.
- Contract for Difference (CFD)A CFD is a leveraged derivative contract between a trader and a broker that pays the difference in price between contract open and close — economically similar to an undelivered margined long or short.
- Equity Perpetual FutureAn equity perpetual future is a crypto-style perpetual contract whose price references a public equity, settled in stablecoins with funding payments instead of expiry.
- Extended-Hours TradingExtended-hours trading refers to the pre-market (4:00am-9:30am ET) and after-hours (4:00pm-8:00pm ET) sessions surrounding the regular US equity trading day.
- Fractional SharesFractional shares let investors buy less than one share of a stock or ETF, expressed either as a fractional quantity (0.25 shares) or a dollar amount ($50 of AAPL).
- Grey MarketGrey market securities are unlisted, unquoted equities that trade only by direct dealer negotiation — the lowest tier of US OTC stocks.
- OTC TiersOTC tiers are the quality bands OTC Markets Group assigns to over-the-counter securities — OTCQX (highest), OTCQB, Pink Current, Pink Limited and Grey — reflecting disclosure and listing standards.
- Penny StockThe SEC defines a penny stock as a security trading under $5 per share — but in practice the term refers to thinly-traded micro-cap stocks, often on the OTC market.
- Pink SheetsThe Pink market — historically called the 'pink sheets' — is the OTC tier for issuers that do not meet the disclosure or financial standards of OTCQX or OTCQB.
- Pre-Market TradingThe pre-market session is the window before the 9:30am ET regular open when US-listed stocks can trade on lit exchange order books — typically 4:00am-9:30am at retail brokers.
- Short LocateA short locate is the broker process of confirming shares are available to borrow before allowing a short sale, as required by SEC Regulation SHO.
- Tokenized StockA tokenized stock is a blockchain-issued token whose price tracks an underlying public equity, typically fully or partially backed by the actual share held in custody.