Limit order vs. Market order. Difference, slippage, when to use which?

    Direct answer

    A market order guarantees execution but not price, it fills at the best currently available price. A limit order guarantees the price (or better) but not execution, it only fills if the market reaches the limit. Market order = immediate at any price, limit order = at this price or not at all.

    Detailed comparison

    CriterionLimit orderMarket order
    Execution guaranteed?No, only if price is reachedYes (assuming liquidity)
    Price guaranteed?Yes, limit or betterNo, slippage possible
    Order-book roleMaker (adds liquidity)Taker (removes liquidity)
    Fees (typical)Lower (maker rebate possible)Higher (taker fee)
    Risk in thin marketsNon-executionMeaningful slippage
    Usage in news/volatilitySuited for planned entries at levelsSuited when immediate exit/entry is mandatory

    When Limit order?

    When entry/exit price matters more than immediate fill, e.g. building a position at support or scaling into a retracement.

    When Market order?

    When immediate execution is priority, e.g. closing a position that moves against plan, or in liquid instruments with tight spreads.

    Educational content, not investment or tax advice. Neutrally contrasted, not a recommendation of either approach. Trading leveraged products carries risk of total loss.