Prop Firm Daily Drawdown Explained: Balance, Equity, Reset Time and Examples

The short answer

A prop-firm daily drawdown rule sets the lowest permitted account value during the firm's defined trading day. The percentage alone is not enough: the firm may measure balance or live equity, include open profit and loss, commissions and swaps, and reset the calculation in a time zone different from yours. Write the exact rule as a formula before placing a trade.

Five values you must identify

• Reference amount: initial balance, start-of-day balance, prior close, or the higher of balance and equity
• Loss allowance: a fixed cash amount or percentage
• Monitored value: closed balance, live equity, or another defined measure
• Included costs: commissions, swaps and other charges
• Reset rule: exact time, time zone and daylight-saving treatment

If one field is unclear, a headline such as “5% daily loss” is not enough to manage the account safely.

Balance and equity are not interchangeable

Balance changes after trades close and charges post. Equity adds the current profit or loss of open positions. For example, a balance of $50,800 with −$2,100 open P/L and −$100 in charges gives equity of $48,600. If the permitted floor is $48,500, only $100 remains even though balance is above the original $50,000.

Worked example: a fixed intraday floor

Assume a hypothetical $50,000 account with a $1,500 daily loss allowance, where the floor is fixed from the balance recorded at reset: minimum permitted equity = reset balance − daily loss allowance. The floor is therefore $48,500.

The trader closes a $600 gain, so balance becomes $50,600, then holds −$2,050 of floating loss and pays $100 in charges. Equity is $48,450. The account has crossed the $48,500 floor even though the closed balance is profitable. This is an example of one rule structure, not a universal standard.

The reset-time trap

“Daily” normally means the firm's clock, not your local calendar. FTMO's published example recalculates Maximum Daily Loss at midnight CE(S)T and counts closed and open results plus commissions and swaps. Its March 2026 notice also shows why daylight-saving changes matter. A position that looked safe before reset can have a different buffer immediately afterward.

Static, balance-based and trailing limits

• Static floor: stays tied to a fixed reference such as initial balance
• Daily balance or equity floor: recalculates from a value captured at the firm's reset
• Trailing floor: rises after a new balance or equity high, sometimes only at end of day

Do not infer the formula from the label. Two programs can use the word “drawdown” while monitoring different values.

Set an internal stop above the breach level

A practical control is: internal equity stop = firm floor + execution buffer + open-order cost buffer. The buffer allows for spread expansion, slippage, commissions, swaps and copied-exit differences. It does not make the firm's limit larger; it makes you stop earlier.

Why copying across prop accounts is harder

Different firms may use different reset times, formulas, symbol contract sizes and execution prices. Equal lots do not create equal risk. Before copying, record each account's floor separately, size each follower from its own risk capacity, include open P/L and costs, block new orders near the internal stop, and test symbol mapping and lot rounding on demo accounts.

Pre-session checklist

1. Copy the current rule text and note the program name and review date
2. Write the formula and calculate today's cash floor
3. Convert the reset to your operating time zone
4. Set a personal stop above the breach floor
5. Check combined open risk, pending orders and trading costs
6. Recalculate after reset and after any rule or account change

Questions traders usually ask

Does floating profit increase the allowance?

Sometimes, but not universally. It depends on whether the firm uses balance, equity, a high-water mark or a fixed daily reference. Verify the current formula and examples for your exact program.

Is daily loss the same as maximum loss?

No. The daily rule applies to one defined trading day; the overall rule sets a separate account-wide floor. Both can be active at the same time.

Can slippage cause a breach?

Yes. When equity is close to the floor, a worse fill, spread expansion or delayed copied exit can move the account through the limit.

Sources and image credit

• FTMO, Trading and Drawdowns: https://ftmo.com/blog/drawdowns/
• FTMO, Trading Update 26 March 2026 (reset-time notice): https://ftmo.com/en/blog/trading-updates/trading-update-26-mar-2026/
• CFTC, Eight Things You Should Know Before Trading Forex: https://www.cftc.gov/LearnAndProtect/AdvisoriesAndArticles/CustomerAdvisory_MustKnowForex.html
• Photo: Jakub Zerdzicki via Pexels, Pexels License: https://www.pexels.com/photo/detailed-stock-market-analysis-workspace-36598869/