Rule B5 & B4 Safeguards: Saving a check freezes pre-trade friction and your assessed probability only ($0.00 live exposure). Saving a check does never place a trade or commit live capital on Kalshi or Polymarket.
Personal Decision & Outcome Journal
Decision Accountability Loop
Record your pre-trade cost checks, freeze your assessed probabilities, and track your realized outcomes against fee-adjusted breakeven hurdles.
📅 Weekly Decision & Outcome Recap
TRAILING 7 DAYS
Strictly user-supplied data · $0 live risk
📊
No checks recorded in the trailing 7 days.
Run a pre-trade True-Cost check to generate your weekly friction and decision recap.
⚡ FIRST-USE EXAMPLE PREVIEW
KXBTC15M Example Check
Excluded from customer metrics
This example illustrates how pre-trade true costs and post-check discipline are journaled. You can choose whether you would have Skipped, Paper traded, or Actual traded, and record your reasoning below.
CONTRACT & ASK
10x @ 51¢ ($5.10)
EXCHANGE FEE
+$0.18 (1.80¢/ct)
MAX LOSS
$5.28
BREAKEVEN HURDLE
52.80%
✓ Skipped: Capital protected. Saving a check does not place an order.
Auto-saved locally
Tracked Decisions
0
0 settled · 0 pending
Personal Brier Score
—
Market benchmark: 0.2001
Realized Net P&L
+$0.00
Net after all fees & costs
Cumulative Taker Fees
$0.00
Rule B5 $0.00 Live Risk
Personal Decision Ledger
(0 entries)
Sorted: Most Recent First
📓
Your Personal Journal is Ready
Run a True-Cost check on any Kalshi or Polymarket contract to verify your fees and save your first decision card.
Run First True-Cost Check →
How to Use Your Decision Journal:
- Run Pre-Trade Checks: Calculate fee and spread drag on the True-Cost Calculator before risking any capital.
- Commit Freeze: Save the check to lock in your assessed probability ($p$) and required hurdle before market settlement.
- Reconcile Actual Charges: Compare your realized monthly exchange statements against modeled fee drag to verify rounding impact.
