ES tick value: $12.50 per tick, $50 per point, and MES at $1.25

What is the ES tick value?

The ES tick value is $12.50: E-mini S&P 500 futures (ES) move in 0.25-point steps, and each step changes one contract's value by $12.50, so one full index point is $50. The micro contract MES uses the same 0.25 tick but is worth $1.25 per tick and $5 per point. Four ticks make a point.

A tick is the smallest price change the exchange allows for a contract. Tick value is the dollar amount one tick adds to or removes from one contract. For ES the exchange sets the contract at $50 times the index, and 0.25 of a point times $50 gives the $12.50 tick. Exchanges can change tick size and multiplier, so confirm both on the exchange's contract page before you trade or backtest; the free futures contract calculator shows the tick size, tick value and point value for a contract and works out the profit or loss of a trade. If you want the general method for any contract, how to calculate futures profit from tick value and point value walks through it step by step.

How many ticks are in an ES point, and how do you turn ticks into dollars?

Four ticks make one ES point, so the dollar result of a trade is the number of ticks times $12.50, or the number of points times $50, per contract. Count the move in ticks when the move is small and in points when it is large; both give the same answer. The result is before commission and slippage, which the last section covers.

Profit or loss per contract = ticks moved × $12.50, where ticks moved is the exit price minus the entry price, divided by 0.25.

What is the MES tick value compared with ES?

MES is one-tenth of ES: the tick size is the same 0.25 point, but a tick is worth $1.25 and a point is worth $5 per contract. The Micro E-mini S&P 500 (MES) tracks the same index with a $5 multiplier instead of $50, so ten MES contracts move in dollars like one ES contract. A trader can take the same signal with a tenth of the dollar swing, or scale a position in ten steps where ES allows only one. The same one-tenth pattern applies to other micro contracts, for example the MGC tick value of $1 on Micro Gold futures.

One cost difference matters for small accounts: commission is charged per contract, so ten MES usually cost more in commission than one ES. Check your broker's rate per side before choosing the micro for size reasons alone.

How many ES contracts fit my account?

The contract count comes from the dollar risk you accept per trade divided by the stop distance in dollars, not from how many contracts the margin allows. Margin is the deposit the exchange requires to hold one contract; it tells you the most you could hold, which is the wrong question. Position sizing is the step that turns a risk budget and a stop distance into a contract count. The free position size calculator does this arithmetic for a chosen account risk and stop distance.

1. Decide the dollar risk per trade. Many systematic traders use a fixed fraction of the account, often 1 percent or less.
2. Write the stop distance in ticks and multiply by the tick value to get the risk per contract.
3. Divide risk per trade by risk per contract and round down to a whole number.
4. Check that this count fits the margin. If it does not, trade fewer contracts or switch to MES.

The stop distance depends on the strategy type: a breakout rule and a mean-reversion rule on the same chart need very different stops, which is why the five types of futures algo trading strategies are sized differently even on one contract.

How do you use tick value in a backtest cost model?

Write commission and slippage per side in ticks, convert them to dollars with the tick value, add them into one round-trip cost, and compare that cost with the average trade after costs. Slippage is the difference between the price your rule used and the price you would actually get. Pardo (2008) treats realistic cost assumptions as part of evaluating a strategy, not an adjustment made afterwards.

1. Slippage: one tick per side is a common starting point for ES. Two sides × $12.50 = $25 per round trip.
2. Commission: take your broker's round-trip rate per contract, for example $20 including exchange fees.
3. Round trip: $25 + $20 = $45 per contract per trade.
4. Compare the $45 with the average trade after costs. A strategy whose average trade is only a few times the round trip depends on cheap fills.

The run behind this article used exactly these settings. It tested ES daily bars from 2019-01-02 to 2025-06-30, long and short with one contract, charging $20 commission and $25 slippage per trade. The rule is a stand-in built from a standard Volume indicator, not a tick-value rule itself; tick value only sets what the costs and the results are worth in dollars. The result shown is the one candidate the search kept out of about a thousand it tried, chosen for its return against its drawdown, and picking the kept one after the fact flatters it, as Bailey et al. (2014) show for any best-of-many selection. Read it as an illustration of how costs appear in a report, not as money the rule earned or a result to expect. The average trade line of $995.6 in the summary is already net of the $45 round trip, which is what the comparison in step 4 needs; in AlphaPrime (Valynox) that net figure and the trade count sit on the first page of the Performance Report, so the cost check needs no spreadsheet.

Costs are one of several contract settings a backtest must get right; the multiplier, the rollover method and the session also change the dollar result, and contract specs and rollover in futures backtests covers them in order. Next step: open your own ES backtest, rerun it with slippage doubled to two ticks per side, and see whether the average trade stays well above the new round trip.