Position Sizing
The process of determining how many contracts, lots, or shares to trade per position based on your account size, risk tolerance, and the distance to your stop-loss. Proper position sizing is the foundation of risk management.
How it works
Position sizing in prop trading is more constrained than personal trading because you must stay within daily loss limits and overall drawdown. The standard approach is to risk a fixed percentage per trade (typically 0.5-2% of account balance) and calculate lot size based on stop-loss distance.
The formula is: Position Size = (Account Balance * Risk Percentage) / (Stop Loss in Pips * Pip Value). For futures, it is: Number of Contracts = Risk Amount / (Stop Loss in Ticks * Tick Value). This ensures each trade risks the same dollar amount regardless of stop-loss width.
Prop firm traders must also consider the daily loss limit as a hard cap. If your daily loss limit is $2,000 and you risk $500 per trade, you can only take 4 consecutive losses before being terminated for the day. Aggressive position sizing (risking 2%+ per trade) leaves very little room for losing streaks.
Example with numbers
FTMO $100K account, 1% risk per trade ($1,000). Trading EUR/USD with 50 pip stop-loss. Pip value for 1 standard lot = $10. Position size = $1,000 / (50 * $10) = 2 standard lots. Daily loss limit is $5,000, so you can take 5 consecutive full losses before hitting the daily limit. With 2% risk ($2,000 per trade), you can only take 2.5 losses.
Lot Size
The standardized quantity of a financial instrument in a single trade. In forex, 1 standard lot = 100,000 units of the base currency. In futures, lot size varies by contract (1 ES = $50/point, 1 NQ = $20/point).
How it works
Lot size directly determines your dollar-per-pip or dollar-per-tick exposure. In forex, there are three standard sizes: standard lot (100,000 units, ~$10/pip for USD pairs), mini lot (10,000 units, ~$1/pip), and micro lot (1,000 units, ~$0.10/pip).
For prop firm traders, lot size selection must be calibrated to your drawdown limits. Trading too large relative to your account means a small adverse move can breach daily loss limits. Trading too small means hitting profit targets takes much longer.
The general recommendation for prop firm trading is to start with smaller lot sizes during evaluation and only increase once you have built a profit cushion. Many successful prop firm traders use 0.5-1% risk per trade, which translates to specific lot sizes based on stop-loss distance.
Example with numbers
FTMO $100K, trading EUR/USD with 30-pip stop-loss, risking 1% ($1,000). Pip value for 1 standard lot = $10. Lots = $1,000 / (30 pips * $10) = 3.33 lots. Round down to 3 lots. Actual risk: 3 * 30 * $10 = $900. If EUR/USD moves 50 pips in your favor: profit = 3 * 50 * $10 = $1,500. Daily loss limit allows 5.5 full losses at this size.
Pip Value
The monetary value of a one-pip movement in a forex pair for a given lot size. For USD-denominated pairs, 1 pip on a standard lot is approximately $10. Pip value varies for cross-currency pairs.
How it works
A pip (percentage in point) is the smallest standard price movement in forex, typically the fourth decimal place (0.0001) for most pairs. For JPY pairs, a pip is the second decimal place (0.01).
Pip value is essential for calculating position size, risk, and profit/loss. The formula is: Pip Value = (0.0001 / Exchange Rate) * Lot Size * Contract Size. For USD-quoted pairs (EUR/USD, GBP/USD), the calculation is simplified: 1 standard lot = $10 per pip.
In prop firm trading, understanding pip value is critical for staying within daily loss limits. If your daily loss limit is $2,000 and you trade 2 standard lots of EUR/USD (pip value = $20), you can only afford a 100-pip adverse move before hitting the limit. This informs your stop-loss placement and maximum position size.
Example with numbers
Trading GBP/USD at 1.2700 on FTMO $100K. Standard lot pip value: $10. Mini lot pip value: $1. You trade 5 standard lots with a 40-pip stop. Risk: 5 * 40 * $10 = $2,000 (2% of account). Daily loss limit: $5,000. You have room for 2.5 full stop-outs before hitting the daily limit. Target: 80 pips = 5 * 80 * $10 = $4,000 reward.
Tick Value
The monetary value of a one-tick movement in a futures contract. A tick is the minimum price increment for a futures instrument. ES (E-mini S&P 500) has a tick value of $12.50, NQ (E-mini Nasdaq) is $5.00.
How it works
Tick value is the futures equivalent of pip value in forex. Each futures contract has a defined minimum price increment (tick) and a corresponding dollar value per tick. Common values: ES = $12.50/tick (4 ticks per point, $50/point), NQ = $5.00/tick (4 ticks per point, $20/point), MES = $1.25/tick.
For prop firm futures traders, tick value determines position sizing. If your daily loss limit is $1,000 and you trade ES with a 10-tick (2.5-point) stop, your risk per contract is 10 * $12.50 = $125. Maximum contracts: $1,000 / $125 = 8 ES contracts.
Micro contracts (MES, MNQ) have 1/10th the tick value of their full-size counterparts. They allow more precise position sizing and are popular with smaller prop firm accounts. Many prop firm traders use a mix of full and micro contracts to fine-tune their exposure.
Example with numbers
TopStep $50K, trading NQ with $5.00/tick. Your stop-loss is 40 ticks (10 points). Risk per contract: 40 * $5.00 = $200. Daily loss limit: $1,000. Max contracts at this stop: $1,000 / $200 = 5 NQ contracts. If NQ moves 60 ticks (15 points) in your favor with 3 contracts: profit = 3 * 60 * $5.00 = $900.
Leverage
The ratio of trading exposure to actual capital required. In forex, leverage can be 1:100 or higher, meaning $1,000 controls $100,000 of currency. In futures, leverage is built into the contract specification through margin requirements.
How it works
Leverage in prop firm trading is somewhat different from retail trading because you are already trading with the firm's capital. The firm sets leverage limits through position sizing rules, max lot restrictions, and margin requirements on their platforms.
For forex prop firms, typical leverage ranges from 1:30 to 1:100 depending on the firm and regulatory environment. FTMO offers up to 1:100 for forex pairs. Higher leverage allows larger position sizes but amplifies both profits and losses.
For futures prop firms, leverage is inherent in the contract design. An ES contract controls approximately $250,000 in notional value with only about $15,000 in margin. Prop firms manage this by limiting the number of contracts you can trade. The effective leverage on a $50K futures account trading 5 ES contracts is roughly 25:1.
Example with numbers
FTMO $100K forex account with 1:100 leverage: you can control up to $10,000,000 in positions (100 standard lots). But with a 5% daily loss limit ($5,000), trading 100 lots with a 5-pip stop = $5,000 risk -- hitting your daily limit on a single trade. Effective safe leverage is much lower: 5-10 lots (1:5 to 1:10 effective) with reasonable stop-losses.
Margin Call
A notification or automatic action triggered when your account equity falls below the required margin level. In prop firm trading, margin calls are effectively replaced by drawdown limits -- the firm terminates the account rather than requesting additional funds.
How it works
Traditional margin calls in retail trading require the trader to deposit more money or have positions liquidated. In prop firm trading, there is no mechanism to deposit additional funds. Instead, the drawdown floor acts as the ultimate margin call -- breach it and the account is terminated.
Some prop firms have an intermediate warning system. They may auto-close positions or lock the account for the day when the daily loss limit is approaching. Others simply terminate the account the moment any limit is breached.
Understanding the relationship between margin requirements and drawdown limits is important. Even if the platform allows you to open a large position (because margin requirements are met), the position might violate your daily loss limit if it moves against you. Always calculate risk based on drawdown limits, not platform margin.
Example with numbers
Apex $100K with $3,000 trailing drawdown. Platform margin for 1 ES contract: ~$15,840. You can technically hold 6 ES contracts (margin: $95,040). But 6 ES contracts with a 10-point adverse move = 6 * 10 * $50 = $3,000 -- your entire drawdown. The platform margin says you can trade 6 contracts. The drawdown math says you should trade 1-2.
Risk-Reward Ratio
The relationship between the potential loss (risk) and potential gain (reward) on a trade, expressed as a ratio like 1:2 or 1:3. A 1:2 ratio means you risk $1 to potentially make $2.
How it works
Risk-reward ratio is fundamental to profitable prop firm trading. With a 1:2 risk-reward ratio, you only need to win 34% of your trades to break even (ignoring commissions). With a 1:3 ratio, you only need 25% win rate.
Prop firm evaluations amplify the importance of risk-reward because the profit target is typically 2x the max drawdown. On FTMO $100K, you need $10,000 profit (10%) with only $10,000 max drawdown (10%). This 1:1 ratio between target and drawdown means you cannot afford a string of losses without good risk-reward on individual trades.
Many prop firm traders aim for 1:2 or better risk-reward ratios. This means stop-losses are tighter than take-profit levels. The trade-off is that higher risk-reward ratios typically have lower win rates. The key is finding the combination of win rate and risk-reward that generates enough profit to hit the target before drawdown is exhausted.
Example with numbers
FTMO $100K evaluation, $10,000 profit target. You trade with 1:2 risk-reward, risking $500 per trade (0.5%) to make $1,000. With a 50% win rate: expected profit per trade = (0.5 * $1,000) - (0.5 * $500) = $250. You need 40 trades to hit the $10,000 target. Max losing streak before $5,000 daily limit (with $500 risk): 10 consecutive losses.
Win Rate
The percentage of trades that result in a profit. A 60% win rate means 6 out of every 10 trades are winners. Win rate alone does not determine profitability -- it must be considered alongside risk-reward ratio.
How it works
Win rate is one half of the profitability equation. A trader with a 90% win rate but 1:10 risk-reward (risking $10 to make $1) will lose money. A trader with a 30% win rate and 1:5 risk-reward (risking $1 to make $5) will be profitable.
For prop firm evaluations, the required minimum win rate depends on your risk-reward ratio. At 1:1 risk-reward, you need above 50% win rate. At 1:2, you need above 33%. At 1:3, you need above 25%. Most successful prop firm traders operate in the 45-65% win rate range with 1:1.5 to 1:3 risk-reward.
Consistency rules add another dimension. Even with a high win rate, if most of your profits come from a few big winning days, you may violate the consistency rule. This means the distribution of wins matters as much as the overall win rate.
Example with numbers
Prop firm evaluation with $6,000 profit target. Strategy A: 65% win rate, 1:1 risk-reward, $300 risk per trade. Expected profit per trade: (0.65 * $300) - (0.35 * $300) = $90. Trades needed: 67. Strategy B: 40% win rate, 1:3 risk-reward, $300 risk per trade. Expected profit per trade: (0.40 * $900) - (0.60 * $300) = $180. Trades needed: 34. Strategy B reaches the target in half the trades despite lower win rate.
Break-Even Point
The account balance or number of trades at which cumulative profits equal cumulative losses plus costs (challenge fees, commissions). In prop trading, this is the minimum performance needed to recover your initial investment.
How it works
Break-even in prop firm trading has two meanings. First, the trade-level break-even: moving your stop-loss to your entry price after the trade moves in your favor, eliminating risk on that trade. Second, the account-level break-even: earning enough in payouts to cover challenge fees and other costs.
For account-level break-even, consider: you paid $540 for an FTMO challenge. Your profit split starts at 80%. To recover the $540 fee, you need $540/0.80 = $675 in trading profit on your funded account. However, FTMO refunds the fee with your first payout, so actual break-even is your first profitable payout.
Trade-level break-even is a risk management technique. After a trade moves in your favor by a certain amount (often 1R -- the distance from entry to stop), you move the stop to entry. This turns the trade into a "free trade" where you cannot lose. This is particularly valuable in prop trading where preserving drawdown room is critical.
Example with numbers
Total prop firm costs: FTMO $100K challenge at EUR 540 ($590). You pass after 2 months. First funded payout: $4,000 profit * 80% = $3,200 to you + $590 fee refund = $3,790 total. Break-even achieved on first payout. If you failed and retried once: total cost = $1,180. Now you need $1,180/0.80 = $1,475 in funded profit (before refund) to break even.
Risk Per Trade
The maximum dollar amount or percentage of account balance you are willing to lose on a single trade. Most prop firm traders risk 0.5-2% per trade to ensure they can withstand losing streaks without breaching drawdown limits.
How it works
Risk per trade is the single most important variable in prop firm survival. Too high and a losing streak terminates the account. Too low and you cannot hit the profit target in a reasonable time. The sweet spot for most traders is 0.5-1.5% of account balance.
The math dictates the boundaries. With a 5% daily loss limit and 1% risk per trade, you can take 5 consecutive losses before hitting the daily limit. With 2% risk, only 2.5 losses. Given that 3-5 consecutive losses are common even in profitable strategies, 2% risk leaves almost no margin for error.
Risk per trade should also account for the profit target timeline. On FTMO with no time limit, you can afford lower risk (0.5%) and take more trades. On firms requiring minimum trading days or having monthly subscription fees, there is pressure to trade with higher risk to pass faster -- but this increases blow-up probability.
Example with numbers
FTMO $100K with 10% max drawdown ($10,000) and 5% daily loss ($5,000). At 1% risk ($1,000/trade): max 5 consecutive losses before daily limit, max 10 before total drawdown breach. At 2% risk ($2,000/trade): max 2 before daily limit, max 5 before total breach. Statistics show a 50% win rate strategy has a 3.1% chance of 5 consecutive losses -- acceptable at 1% risk, dangerous at 2%.
Stop-Loss
A pre-set order to close a position at a specified price to limit losses. In prop trading, stop-losses are not optional -- trading without them means a single adverse move could breach drawdown limits and terminate the account.
How it works
Stop-losses in prop firm trading serve a dual purpose: protecting individual trade risk and protecting account-level drawdown. Without a stop-loss, a trade can run against you indefinitely, and in fast markets, the loss can exceed your daily or overall drawdown limit before you can react.
There are several stop-loss types: fixed (set number of pips/ticks from entry), ATR-based (set based on market volatility), structure-based (placed below/above key support/resistance levels), and trailing (follows price in your favor). Structure-based stops are most popular among prop firm traders because they align with logical market levels.
The width of your stop-loss directly determines your position size (through the risk-per-trade calculation). A wider stop requires smaller position size to maintain the same dollar risk. Prop firm traders often debate tight vs wide stops -- tight stops get stopped out more frequently but allow larger position sizes, while wide stops have higher win rates but smaller position sizes.
Example with numbers
FTMO $100K, risking 1% ($1,000). Trading EUR/USD: (A) 20-pip stop = 5 standard lots ($50/pip). (B) 50-pip stop = 2 standard lots ($20/pip). Both risk $1,000. Option A: more contracts, tighter stop, stopped out more often. Option B: fewer contracts, wider stop, survives more noise. With 1:2 R:R, Option A targets 40 pips ($2,000), Option B targets 100 pips ($2,000). Same reward, different trade characteristics.
Risk Management for Prop Firm Traders
The specialized discipline of managing trading risk within the fixed constraints imposed by prop firm rules -- daily loss limits, maximum drawdown, and trailing floors. Fundamentally different from personal account trading because violations terminate the account permanently.
How it works
Risk management for prop firm traders operates under harder constraints than personal account trading. When trading your own capital, a losing streak reduces your equity but you remain in the game. On a prop firm account, breaching the daily loss limit or drawdown floor ends the account immediately and permanently -- the only path back is paying a new evaluation fee.
The three-layer risk framework for prop firm traders: (1) Trade-level risk -- the maximum loss on any single trade, typically 0.5-1% of account balance. (2) Session-level risk -- the maximum total loss in one trading day, which must stay inside the firm's daily loss limit with margin left for unexpected slippage. (3) Account-level risk -- the overall maximum drawdown the firm allows, which sets the hard ceiling for cumulative losses.
A critical difference from personal account trading is that prop firm risk management must account for the asymmetry of trailing drawdown. With intraday trailing (Apex), every profitable trade also shrinks your floor, meaning a string of small wins followed by a medium loss can terminate the account despite being up on balance. Personal account traders who ignore this dynamic almost always fail their first few prop firm evaluations.
Example with numbers
Apex $100K, $3,000 trailing intraday drawdown, no daily loss limit. Floor starts at $97,000. Day 1: 3 winning trades totaling $1,200 realized, floor moves to $98,200. One losing trade: -$900. Balance: $100,300. Floor: $98,200. Remaining room: $2,100. A personal account trader might see +$300 net and think they are fine. The prop trader knows their room shrank from $3,000 to $2,100 -- a 30% reduction -- on a net-positive day.
Forex Risk Management
The practice of controlling risk on currency pair trades using pip-based stop-losses, lot sizing, and correlation management. On prop firm accounts, forex risk management must fit within daily loss limits expressed in dollars, converting pip risk to dollar risk before every trade.
How it works
Forex prop firm trading requires converting abstract pip risk into dollar risk before every position. The chain: intended stop-loss distance (pips) times pip value times lot size equals dollar risk per trade. That dollar risk must be below your per-trade budget and your remaining daily loss room -- calculated before, not after, the trade.
Currency pair correlation is a hidden risk multiplier. EUR/USD and GBP/USD are highly correlated (often 0.85+), meaning holding both simultaneously effectively doubles your exposure to USD weakness or strength. If your daily loss limit is $3,000 and you have EUR/USD and GBP/USD positions each risking $1,500, a broad USD rally can hit both stops simultaneously and wipe your daily limit on what appears to be two separate trades.
Firms like FTMO and FundedNext support forex trading with leverage up to 1:100. But high leverage is a trap if it is used to justify oversized positions. The correct use of leverage on a prop firm account is to achieve proper pip-based position sizing at low dollar risk -- not to maximize position size. A 10-pip stop on EUR/USD with $500 risk requires 5 standard lots at 1:100 leverage, which is practical. Trying to trade 20 lots to make more money with the same stop is the behavior that terminates accounts.
Example with numbers
FTMO $100K, $5,000 daily loss limit. Trading EUR/USD and GBP/USD simultaneously. EUR/USD: 1.5 lots, 40-pip stop = 1.5 * 40 * $10 = $600 risk. GBP/USD: 1.5 lots, 40-pip stop = $600 risk. Both pairs drop 40 pips simultaneously (correlated USD rally during NFP). Total realized loss: $1,200 in minutes -- 24% of daily limit on what felt like two conservative trades. Adding a third correlated pair (AUD/USD) at the same size would have risked $1,800 total, triggering the daily limit with 3 stops hit.
Day Trading Risk Management
Risk control practices specific to intraday trading where all positions are opened and closed within the same session. For prop firm day traders, session-based risk management prevents the daily loss limit from being consumed on a single bad trade sequence.
How it works
Day trading on a prop firm account imposes a natural daily reset on risk. Each trading day, you start fresh with full daily loss limit capacity. The challenge is that intraday volatility can quickly consume that capacity -- especially during major economic releases or market open/close periods when spreads widen and slippage increases.
A structured session risk framework for prop firm day traders: define a maximum daily loss of 60-80% of the firm's stated daily limit, giving yourself a buffer for slippage and commissions. Divide that personal maximum by your planned number of trades to get a per-trade risk cap. For example, on a $5,000 daily loss limit account, cap personal daily loss at $3,500 and plan 4-5 trades, yielding $700-875 per-trade risk.
Session timing matters. The first 30 minutes after the US equity open (9:30-10:00 AM EST) and the last 30 minutes before close (3:30-4:00 PM EST) are the highest volatility periods with the most false signals. Many prop firm traders find their best results come from the 10:00-11:30 AM window when initial volatility settles and trend direction becomes clearer. Avoiding trading during high-news-event windows also preserves daily loss room.
Example with numbers
TopStep $100K futures, $2,000 daily loss limit. Personal daily max: $1,500 (75% buffer). Trading ES with 1 contract: stop-loss at 6 ticks (6 * $12.50 = $75/contract). Max trades before hitting personal limit: $1,500 / $75 = 20 losing trades. Realistic session: 6-8 trades, 3-4 losses ($225-$300 daily loss), leaving 75-85% of daily budget intact. After 3 losing days in a row ($900 cumulative), reduce trade size to 0.5 ES equivalent until a winning day resets confidence.
Options Risk Management
Risk control practices for trading options contracts on prop firm accounts. Options offer defined-risk structures that fit well within prop firm drawdown limits, but require understanding of premium decay, volatility exposure, and expiration risk.
How it works
Options on prop firm accounts are primarily available through equity-focused firms. The most significant risk management advantage of options is that long options have defined maximum loss -- you can only lose the premium paid. This makes position sizing straightforward: if you buy a call for $200, your maximum risk is $200 regardless of how far the underlying moves against you.
However, options introduce unique risks not present in forex or futures. Time decay (theta) erodes the value of long options every day, even if the underlying does not move. On prop firms with monthly evaluation subscriptions (TopStep), holding long options for days while theta works against you is a slow drawdown drain. Volatility expansion and contraction (vega risk) can cause options to gain or lose value independently of the underlying price direction.
For prop firm accounts with daily loss limits, short options strategies (selling premium) can violate limits dramatically. A short naked put can lose many multiples of the initial premium received if the stock gaps down overnight. Prop firms that allow options typically restrict selling uncovered options or set maximum notional exposure limits. Defined-risk spreads (vertical spreads, iron condors) are the recommended options structures for prop firm accounts because the maximum loss is fixed and known before entry.
Example with numbers
Equity prop firm account, $10,000 drawdown limit. Buying a SPY call debit spread: buy 5 contracts at $1.50, sell 5 contracts at $0.80. Net debit: $0.70 * 5 * 100 shares = $350 maximum risk. Alternative: sell 5 naked puts at $2.00 per contract. If SPY gaps down 5% overnight, the puts might be worth $8.00 each -- loss of $3,000 ($8.00 - $2.00 received * 5 * 100). The defined-risk spread caps loss at $350 vs $3,000+ on the naked put.
What Is a Trading Journal?
A systematic record of every trade including entry and exit details, the reasoning behind the trade, which rules were followed or violated, and outcome metrics. For prop firm traders, a trading journal is the primary tool for identifying behavioral patterns that cause rule violations and account failures.
How it works
A trading journal does more than log trades -- it creates a feedback loop between decision and outcome. Without a journal, traders remember their wins vividly and minimize losses in hindsight (memory bias). With a journal, the data shows the unfiltered truth: which setups actually produce edge, how many rule violations correlate with losing days, and whether the emotional state at entry predicts outcome.
For prop firm traders specifically, journaling serves a critical compliance function. Each evaluation attempt ends in either a pass or a violation. Without a journal, failed attempts produce vague lessons ("I was trading too aggressively"). With a journal, the data shows exactly which rule was violated, on which trade type, and under what market conditions. This transforms random account failures into structured learning that reduces the next evaluation fee cost.
Effective prop firm journals capture: trade setup category (the specific pattern or signal), market conditions at entry (trending/ranging/news event), rule compliance check (was this trade inside my daily loss budget?), emotional state at entry (clear/anxious/revenge mode), and post-trade review notes. Apps like Edgewonk, TraderSync, and TradesViz provide structured digital journals. Physical journals work equally well if maintained consistently.
Example with numbers
A trader fails 4 consecutive FTMO $100K evaluations (total cost: EUR 2,160 = ~$2,350). After the 4th failure, they start a trading journal. After 60 days of journaling, the data reveals: 78% of violations occurred on trades taken after 2:00 PM EST (when they were "bored" and forcing setups). Win rate on pre-noon trades: 62%. Win rate on post-2PM trades: 31%. Rule: no new entries after 1:30 PM. 5th evaluation: pass in 18 trading days. The journal identified the behavioral issue that 4 failures could not. Total cost to discover this rule: $2,350 in fees. Annual savings from not taking post-2PM trades: roughly $400 in expected evaluation fees averted.
Key Trading Metrics for Prop Firms
Quantitative measurements of trading strategy performance used to evaluate whether a strategy is suitable for prop firm evaluations. Core metrics include profit factor, Sharpe ratio, SQN (System Quality Number), and win rate -- each reveals a different aspect of strategy health.
How it works
Profit factor is the ratio of gross profits to gross losses. A profit factor above 1.5 indicates a robustly profitable strategy; above 2.0 is strong; below 1.2 means the strategy barely covers losses and is vulnerable to cost changes. Calculation: sum of all winning trade profits divided by sum of all losing trade losses (absolute values). For prop firm evaluations, a minimum profit factor of 1.5 is a reasonable threshold before attempting a challenge.
Sharpe ratio measures return relative to volatility. A Sharpe ratio above 1.0 means the strategy generates more return per unit of risk than a risk-free investment. For prop firm trading specifically, a modified Sharpe ratio using daily returns versus daily standard deviation helps identify strategies whose equity curves are smooth enough to avoid triggering daily loss limits during normal volatility. Strategies with Sharpe ratios below 0.5 produce equity curves too erratic for prop firm rules.
SQN (System Quality Number) was developed by Van Tharp and combines win rate, average reward-to-risk, and the square root of sample size. SQN = (Average R-multiple / Standard Deviation of R-multiples) * sqrt(number of trades). A score above 2.0 is good, above 3.0 is excellent. For prop firm evaluators, SQN above 1.5 across 100+ backtested trades is a reliable indicator that the strategy has genuine statistical edge rather than luck-derived results.
Example with numbers
Strategy audit before FTMO $100K evaluation. Backtest: 150 trades over 18 months. Wins: 87 (58%), Losses: 63 (42%). Average win: $420. Average loss: $230. Profit factor: (87 * $420) / (63 * $230) = $36,540 / $14,490 = 2.52 (strong). Maximum consecutive losses: 5 (5 * $230 = $1,150 -- well inside $10,000 drawdown). Sharpe ratio: 1.74 (smooth equity curve). SQN: (1.28 avg R / 0.85 std dev) * sqrt(150) = 1.506 * 12.25 = 18.4 -- excellent. All metrics green. This strategy should be attempted on FTMO before putting real capital at risk.