Prop Firm Multi-Asset Margin: How to Calculate Crypto and Indices Leverage

• Lower Leverage for Volatile Assets: Most prop firms restrict leverage on indices (NAS100, US30) and crypto to 1:5–1:20, compared to 1:100 on Forex pairs.
• Contract Size Variability: A 1.00 lot on NAS100 represents 20–100 units of the index, whereas 1.00 lot of BTC/USD typically represents 1 Bitcoin.
• Margin Drag Risk: Used margin reduces the available equity buffer for Max Daily Drawdown calculations, potentially causing a breach even if price doesn't hit your stop loss.
• Notional Value is King: Calculating the total dollar value of the position (Price × Contract Size × Lots) is the only way to ensure accurate Position Sizing.
• Firm-Specific Rules: Firms like Seacrest Markets and FXIFY have specific weekend margin requirements that differ from weekday settings.

The following table highlights the typical leverage and drawdown constraints for major assets across leading prop firms.

In a Funded Account, traders often confuse leverage with buying power. Leverage is a multiplier, but margin is the actual collateral "locked" by the broker to keep a position open. When trading indices like the NAS100 or US30, the notional value—the total dollar amount you are controlling—is significantly higher per lot than in Forex.

For example, on FTMO, the leverage for Indices is typically 1:20, while Forex is 1:100. This means for every $1,000 of NAS100 you want to control, you need $50 of margin. In contrast, $1,000 of EURUSD only requires $10 of margin. This discrepancy creates "Margin Drag," where your used margin eats into the equity needed to sustain price fluctuations. If your used margin exceeds your account equity minus the drawdown limit, the platform may trigger a margin call or a liquidated breach before your stop loss is even touched.

Index trading requires a shift from "pip math" to "point math." On most MetaTrader 5 (MT5) and cTrader platforms used by firms like Alpha Capital Group or The5ers, the contract size for the NAS100 is often 10, 20, or 100.

Step 1: Identify the Contract Size

Right-click the asset in the "Market Watch" window and select "Specification." Look for "Contract Size." For Funding Pips, if the contract size is 20, then 1 lot equals 20 units of the index.

Step 2: Calculate Notional Value

Multiply the current price of the index by the contract size and your lot size. Formula: Price × Contract Size × Lots = Notional Value. If NAS100 is at 18,000 and you buy 1 lot (Contract Size 20), your notional value is $360,000.

Step 3: Apply Firm Leverage

Divide the Notional Value by the leverage provided by the Prop Firm. Formula: Notional Value / Leverage = Required Margin. At 1:20 leverage, the required margin is $18,000.

Step 4: Compare Against Drawdown Limits

Check if your $18,000 required margin leaves enough room for your Max Daily Drawdown. If you are on a $100k account with a 5% ($5,000) daily limit, having $18,000 locked in margin significantly restricts your "Free Margin," which is the capital available to absorb losses.

Crypto assets are treated with extreme caution by prop firms due to 24/7 volatility and thin liquidity in "simulated" environments. While Blue Guardian offers competitive conditions, their crypto leverage is far lower than their 1:100 Forex offering.

When calculating margin for crypto prop firms, you must account for the fact that BTC/USD often has a contract size of 1. If BTC is at $60,000 and leverage is 1:2, you need $30,000 of margin to hold just one Bitcoin. This makes crypto one of the most "expensive" assets to trade in terms of buying power. Most Day Trading strategies on crypto fail in prop firms because the margin requirements are too high to allow for multiple positions.

Leverage is a double-edged sword that directly impacts your "recovery zone." In a Live Account simulation, the Max Total Drawdown is usually calculated based on Equity or Balance.

At 1:100 leverage, you can open a massive position using very little margin. This allows the price to move significantly against you before the broker closes the trade due to lack of margin. However, at 1:30 (common for indices in firms like Audacity Capital), the margin requirement is higher. If you over-leverage, your "Margin Level %" drops quickly. If it hits 100% or 50% (depending on the firm's broker), you will face a margin call.

For example, FTMO's daily drawdown is 5%. If you use 4% of your account as margin for a US30 trade, you only have 1% of "unencumbered" equity before you hit your daily limit. This is known as the "Margin Drag" effect.

Holding positions over the weekend is a major risk factor. Firms like FXIFY and Seacrest Markets allow weekend holding on certain account types, but the leverage often drops.

Traders should use a Profit Calculator to simulate weekend gap scenarios before deciding to hold indices or crypto over the break.

When you mix assets, you must calculate the aggregate margin. This is a common pitfall for traders using a Scaling Plan.

Scenario:

• Account: $100,000
• Trade 1: 5 Lots EURUSD (Forex)
• Trade 2: 1 Lot NAS100 (Index)

Math:

• EURUSD Margin: (500,000 Notional / 100 Leverage) = $5,000
• NAS100 Margin: (18,000 Price × 20 Contract Size / 20 Leverage) = $18,000
• Total Used Margin: $23,000

With $23,000 used, your "Free Margin" is $77,000. While this seems plenty, your Max Daily Drawdown is likely only $5,000. Because $23,000 of your capital is "working," any small fluctuation in the $518,000 of total notional value you control will move your equity closer to that $5,000 limit. This is why Risk Management is harder with indices; the volatility of the larger notional value eats the small drawdown buffer much faster than Forex.

Confusion often arises because "1 lot" does not mean the same thing across different brokers used by prop firms.

Before entering a trade, always calculate your Position Sizing based on the specific contract size of the firm's broker. Funding Pips and The5ers provide detailed instrument specifications on their websites to avoid "lot size shock."

Many firms change the rules once you pass the Paper Trading phase.

• Evaluation Phase: High leverage (1:100) is often granted to help traders hit profit targets quickly.
• Funded Phase: Some firms reduce leverage to 1:30 to mimic institutional risk standards.

For instance, Audacity Capital focuses on a more professional approach where leverage is kept lower to encourage longevity. Traders moving from a high-leverage evaluation to a lower-leverage Funded Account must adjust their lot sizes downward. Failure to do so results in "Margin Calls" on the funded stage, even if the same lot size worked during the evaluation.

Why is NAS100 margin higher than Forex margin

NAS100 margin is higher because prop firms provide lower leverage (typically 1:20) for indices compared to Forex (1:100). Additionally, the notional value of an index contract is often much larger than a standard currency lot, requiring more "locked" capital to maintain the position. This is a risk mitigation strategy used by firms to prevent massive losses during high-volatility index moves.

Can I hold crypto over the weekend on a funded account

Most prop firms, including FundedNext and Maven Trading, allow weekend crypto trading because the underlying market is open 24/7. However, you should check the specific Prohibited Strategies of your firm, as some may still restrict weekend holding to prevent "gap" risks on their simulated liquidity bridges.

How do I calculate the lot size for a $100k account on US30

To calculate US30 lot size, first determine your dollar risk (e.g., 1% or $1,000). Then, identify your stop loss in points. Use the formula: Risk Amount / (Stop Loss in Points × Point Value). If your stop is 50 points and the point value is $1 per lot, your lot size would be 20. Always verify the "Point Value" in your platform's instrument specifications before trading.

What happens if my used margin exceeds my drawdown limit

If your used margin exceeds the remaining space in your drawdown limit, you are at high risk of a breach. While the margin itself isn't a "loss," it restricts the equity available to absorb floating losses. If your equity (Balance + Floating P/L) hits the Max Daily Drawdown level, the firm will automatically close your positions and fail the account.

Why does my lot size differ between MT5 and cTrader

Lot sizes can differ because brokers on different platforms may use different "Contract Sizes" for the same asset. For example, 1 lot of NAS100 might be 10 units on an MT5 broker but 1 unit on a cTrader broker. Always check the "Symbol Specification" (MT5) or "Symbol Info" (cTrader) to see the exact number of units per lot.

Is leverage the same for all prop firms

No, leverage varies significantly between firms and account types. FXIFY offers up to 1:100, while The5ers might offer different scales depending on whether you are in a "High Stakes" or "Bootcamp" program. Always consult the firm’s FAQ or Trading Rules Comparison to find the specific leverage for your chosen asset.