Calculator · Free
PDT Rule
Impact Calculator.
See exactly what the old Pattern Day Trader rule was costing you — and how the 2026 SEC change unlocks your account.
Background
Traders with margin accounts under $25,000 were limited to 3 day trades per 5-day rolling window. As of 2026, the restriction is gone.
Your trading profile.
Inputs · 5Not sure? 45–55% is typical for active day traders.
Your actual average, including fees.
Impact breakdown.
Old rule vs newUnder the old $25K rule
After SEC rule elimination
Fill in your trading profile to see the impact
Expected value / trade
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Profit factor
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Trades / month unlocked
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Estimates only · Assumes consistent performance · Not financial advice
Post your result.
Copy a ready-made post to share how the PDT rule change impacts your trading.
The SEC eliminated the PDT rule in 2026. See how it affects your trading with @MeliorEdge 👉 melioredge.com/tools/pdt-calculator
Three steps. No mystery.
This calculator compares your weekly trading volume against the old 3-trades-per-5-days cap and estimates the dollar value of the trades you couldn’t take.
- 01
Check restriction
If your account was under $25,000 and you wanted more than 3 trades per week, the old PDT rule capped your activity.
- 02
Expected value
Using your win rate, average win, and average loss, we calculate the expected dollar value of every trade you take.
- 03
Unlocked P&L
Multiply blocked trades by expected value — that’s the monthly P&L the old rule was costing you.