What are Phidias PropFirm lot size and position limits?
Source review:
Source: Official Phidias PropFirm rules (verified )Phidias PropFirm does not enforce strict lot size limits beyond what your drawdown and daily loss rules allow. Your maximum safe position size is determined by your risk per trade relative to your daily loss limit and stop loss distance.
Practical position limits by account size:
- -$10,000: $300 daily loss limit = $3 safe risk per trade (1% of limit)
- -$25,000: $750 daily loss limit = $8 safe risk per trade (1% of limit)
- -$50,000: $1,500 daily loss limit = $15 safe risk per trade (1% of limit)
- -$100,000: $3,000 daily loss limit = $30 safe risk per trade (1% of limit)
With a 20-pip stop on EUR/USD ($10/pip per standard lot), the safe lot sizes are:
- -$10,000: 0.01 lots per trade
- -$25,000: 0.04 lots per trade
- -$50,000: 0.07 lots per trade
- -$100,000: 0.15 lots per trade
With static drawdown, profitable periods give you more room, but maintain discipline on position sizing regardless.
Use the Vigil position size calculator to find the exact safe lot size for any instrument, stop distance, and account size on Phidias PropFirm.
Rule Evidence
- -Evaluation type: 1-step
- -Platforms: MT5, cTrader
- -Markets: forex, indices, commodities
- -Last reviewed on Vigil: 2026-03-21
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