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    MES position size

    How many lots or contracts of MES (Micro E-mini S&P 500) to trade for a given risk and stop.

    Micro E-mini S&P 500 (MES) moves in ticks of 0.25; one point is worth $5.00 per contract, so one tick is worth $1.25 per contract.

    With $100,000.00 and 1% at risk, a stop of 20 tick gives 40 contracts, which loses $1,000.00 at the stop.

    Calculator, prefilled

    Three letters, e.g. USD, EUR, MXN.
    In pips, points, ticks or cents depending on the instrument, or in price.
    More options
    Used to convert when your account currency is the base currency.
    Needed only when your account currency is neither currency of the instrument.

    Result

    Position size

    40 contracts

    Amount at risk
    $1,000.00
    Risk at this size
    $1,000.00
    Loss at the stop per lot
    $25.00
    Stop distance (tick)
    20
    Units
    200

    Computed values

    Value of one pip of MES by volume, in USD
    VolumeTick valueValue of a 1.0 move
    1 contracts$1.25$5.00
    5 contracts$6.25$25.00
    10 contracts$12.50$50.00

    Contract specification

    Contract size
    5
    Pip, point or tick
    0.25 (tick)
    Smallest price step
    0.25
    Quote currency
    USD
    Nature of the value
    Fixed by the exchange
    Source
    en.wikipedia.org
    Read at the source on
    4 Oct 2026
    Table version
    2026-10-04.1

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    Position size calculator

    A calculation, not a forecast. Not investment advice.