A trade log is an objective, chronological record of all executed transactions within a trading account, detailing timestamps, symbols, order directions, fill prices, position sizes, commissions, and realized gains or losses. It answers what occurred mechanically, serving as the raw transactional ledger upon which deeper journal analysis is built.
How it works
Objective data capture: Logs record exact timestamps, entry and exit prices, quantities, and net financial results directly from brokerage transaction statements.
Quantitative foundation: Provides the essential numbers needed to compute win rates, profit factors, average winners versus losers, and total fee drag.
Distinction from journaling: While a trade log records execution facts, a trading journal adds the thesis, emotional context, and rule compliance.
Why it matters
Eliminates memory distortion by capturing immutable execution facts straight from broker fills.
Provides the baseline data required for performance accounting, tax compliance, and mathematical expectancy calculations.
Helps separate pure execution quality (slippage and commission friction) from tactical trading decisions.
A simple market example
An entry from a broker ledger: '2026-09-04 09:32:15 BUY 100 shares XYZ @ $45.20; 2026-09-04 11:15:02 SELL 100 shares XYZ @ $46.80; Commissions: $1.50; Net Realized P&L: +$158.50.'
Common mistakes
Confusing a trade log with a complete trading journal, leaving out the rationale, thesis invalidation, and behavioral context that explain why trades were taken.
Failing to track transaction fees and slippage, which can turn a nominally winning log into a net losing trading account.
Only reviewing the log after winning periods while ignoring transaction records during drawdown streaks.
Frequently asked questions
Is a trade log generated automatically by my broker?
Yes. Most modern brokerage platforms provide exportable transaction statements (CSV or Excel) that constitute a complete mechanical trade log.
Can I improve my trading using only a trade log?
Rarely. A trade log tells you how much money you made or lost, but gives zero insight into whether you followed your system or succumbed to emotional impulse.
How should a trade log connect to a trading journal?
Each journal entry should reference the unique timestamp or ticket ID of its corresponding trade log record, pairing the objective financial facts with the subjective decision context.
Educational content only. Definitions describe common market usage and may vary by jurisdiction, instrument, or institution.