Educational definition reviewed . Firm-specific usage may differ.
Number of open contracts held in the market (liquidity metric).
Open interest is used here as a plain-language educational definition. Firms, platforms, and account programs may apply different conditions or calculations. Verify the current official terms before using this definition to make an account decision.
Agreement to buy/sell an asset at a future date/price on an exchange.
Smallest price increment a futures contract can move.
Dollar value of one tick move (varies by contract).
Dollar value of a full point move (common for index futures).
Smaller-sized futures contracts designed for lower margin/risk.
Standard “smaller than full-size” futures contract (e.g., E-mini indexes).
Review listed costs and rules, then confirm the applicable account terms with the firm.
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