Margin, Leverage & the True Cost of Trading
Margin is not the purchase price. Leverage cuts both ways. Costs quietly shape every result.
Margin is not the purchase price, and leverage cuts both ways. Understand notional exposure, initial and maintenance margin, and the full cost stack — commissions, fees, slippage — that quietly shapes every result.
- •Margin is the amount required to open a position — not the maximum you can lose.
- •Leverage amplifies both gains and losses; small targets are especially cost-sensitive.
- •Track the full cost stack: commissions, fees, and slippage, not just stop distance.
- •Use micro contracts (MNQ/MES) while learning to keep dollar exposure manageable.
- •Calculate dollar risk separately from margin before every trade.
Notional Exposure vs. Cash in the Account
A futures contract lets you control a large notional position with a comparatively small margin deposit. Understanding the difference between these three numbers is essential before trading.
Suppose an index is trading at a level where one Micro contract (MNQ) has a notional exposure of roughly $40,000. A broker might require a margin deposit of around $800 to hold that position intraday.
These three numbers are different. A $800 deposit controls $40,000 of exposure, and the amount you can lose depends on where you place your protective stop — see the risk formula on the Risk Management & Position Sizing page.
Initial and Maintenance Margin
Margin requirements exist to ensure there is enough capital in an account to cover potential losses. Two thresholds matter most.
Initial margin is what you need to enter. Maintenance margin is the floor you must stay above to keep the position open.
If equity drops below maintenance margin, the broker may issue a margin call — requiring more funds or liquidating the position, potentially at a loss and potentially beyond the margin deposited.
Intraday Broker Margin
Some brokers offer reduced intraday margin for positions that are closed before the session ends. This lower requirement means less capital is needed to open the same position — which also means higher leverage.
Reduced intraday margin increases leverage. The same price move produces the same dollar gain or loss regardless of the margin you deposited — but with less margin, that same loss represents a larger percentage of your committed capital. This page does not list or recommend specific brokers. Always confirm current requirements directly with your broker.
Leverage in Plain Language
Leverage means a small amount of cash controls a large amount of exposure. That cuts both ways — small price movements translate into meaningful dollar gains or losses. Tick and point values are explained on the NQ/MNQ vs. ES/MES page.
One MNQ contract has a point value of $2. If price moves 25 points in a favorable direction, the unrealized gain is:
On an illustrative $800 margin deposit, that $50 move equals roughly 6% of the committed deposit — from a 25-point index move that may be a fraction of a percent of the index level.
The same math applies in the opposite direction. If price moves 25 points against the position:
Leverage did not make the trade riskier per point — the dollar-per-point is fixed. It made the move relative to the deposit larger, because less cash was committed to control the same exposure.
Trading Costs
Beyond margin and leverage, every trade carries costs that reduce net results. Beginners often focus on commissions alone, but the full cost stack matters.
Commissions, exchange fees, clearing fees, platform fees, and market-data fees appear on your statement as line items you can see and compare.
The bid-ask spread and slippage are not listed line items. They quietly reduce your result every time you cross the spread or receive a worse-than-expected fill.
Round-Turn Cost & Why Small Targets Are Cost-Sensitive
Per-Side vs. Round-Turn Pricing
Broker commission and fee pricing is quoted two ways. Comparing them consistently prevents costly mistakes.
The fee charged for one leg — entry only or exit only. A round turn has two sides.
The total fee for a completed entry and exit combined. Already includes both sides.
Why Small Targets Are Cost-Sensitive
Costs and slippage are roughly fixed per round turn. When your gross target is small, those fixed costs consume a larger share of it — making break-even harder and edge thinner.
| Gross target | Gross $ | Est. costs* | Net $ | Cost as % of gross |
|---|---|---|---|---|
| 4 points | $8.00 | $5.00 | $3.00 | 62.5% |
| 10 points | $20.00 | $5.00 | $15.00 | 25.0% |
| 20 points | $40.00 | $5.00 | $35.00 | 12.5% |
*Illustrative combined round-turn cost (commissions + fees + slippage). The cost stays fixed while the target grows — so the same cost is a much larger fraction of a small target.
True Cost Estimator
Adjust the inputs to estimate how commissions, fees, slippage, and recurring costs affect your results. All values are estimates for educational purposes only — actual costs vary by broker, contract, and market conditions.
Cost as share of gross: 39.0%. This is an estimate based on your inputs and does not include taxes, interest, or losses from adverse price movement.
Estimates only. Margin, commission, fee, and slippage assumptions are user-editable and do not represent any specific broker. Confirm actual rates with your broker before trading.
Determines whether a position may be opened.
Margin is an access requirement. Having enough margin means the broker will allow the trade — it says nothing about whether the trade is a good idea or how much you stand to lose.
Determines whether a position should be opened.
A risk plan sets your stop distance, position size, daily loss boundary, and reason for the trade. It governs whether the setup is worth the dollar exposure. See Risk Management & Position Sizing for the full framework.
Margin determines whether a position may be opened; a risk plan determines whether it should be opened.
Questions to Ask Before Going Live
A practical broker-cost and margin checklist. Confirm each answer directly with your broker — requirements vary and change.
Knowledge Check
A margin deposit is the same as the amount you are risking on the trade.
What does notional exposure represent?
A broker reduces intraday margin. What is the effect?
A broker quotes "$3.00 per side." Another quotes "$5.00 round turn." Which is cheaper?
Why are small profit targets more cost-sensitive?
This material is provided for educational purposes only and does not constitute financial, investment, tax, or legal advice. Futures trading involves substantial risk and is not suitable for every trader. Trading tools, indicators, dashboards, calculators, and educational materials cannot predict future prices or guarantee profitable outcomes.
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