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Risk Calculator & Journal

Size every entry with the Playbook’s own rules, then log what actually happened. Nothing you type leaves this device.

Math, not advice. All inputs are yours; the defaults are editable assumptions, not market data. NFA · DYOR.

Position size

Use whatever you think in. Results use the same unit.

SOL

Example value. Put in the money you trade memecoins with, not your savings.

%

How much of the bankroll one losing trade may cost. Playbook house rule: 0.5–1%.

%

How far below entry you’d exit. Memecoins often need wide stops, and stops can gap.

%

Editable assumption: fees, tips and slippage, in and out. Our own tests measured 4.8–6.9%.

%

Max slice of the bankroll per coin, whatever the stop says. The Playbook flags anything over 1–2%.

Exit math against liquidity (optional)
$

Copy it from DexScreener for the pair you’d sell into. Leave blank to skip.

$

Only needed when you count in SOL. Type today’s price; we don’t fetch or guess it.

%

Editable assumption.

What that means

Max loss per trade—Bankroll × risk per trade.
Size from your stop—Loss budget ÷ (stop distance + round-trip costs).
Lottery-ticket cap—Playbook rule: a small fixed slice per coin.
Suggested position—The smaller of the two above.
If it goes to zero—A rug skips your stop. This is the real worst case.
Move needed to break even—Costs come off both ends of the trade.
Price impact on a full exit—x·y=k rule from the Playbook: f ÷ (1 + f).
Max size for your impact limit—Largest position that keeps exit impact under your limit.
At 2x, sell this much to get your cost back—Then the rest rides for free.

Fill in the numbers to see your size.

Run the Red-Flag Checker

Trade journal

Stored only in this browser (localStorage). Export a CSV to back it up or move it to another device. We never see it.

—Closed trades
—Win rate
—Average R
—Net result
—Average hold
—Followed plan
—Costs paid

Rule-break tags show up here once you log trades.

Equity curve Running net result of closed trades, oldest first.

Log two or more closed trades to draw the curve.

When you trade best Net result by entry weekday and time (this device’s clock).

Closed trades fill this in.

Heat taken vs. heat given Worst drawdown (MAE) and best run-up (MFE) while open, if you log them.

Add MAE / MFE to 3+ closed trades (in “Excursions” below) to see whether your stops are too tight or you give back winners.

Log a trade

Excursions (optional): MAE / MFE
%
%

Read them off the chart after you close. They show if your stop sits inside normal noise, or how much of a winner you handed back.

Rules I broke (be honest)

CSV formats you can import
  • Capo journal: the file Export CSV makes. Re-importing skips duplicates.
  • Simple Capo: one row per closed trade, header opened,coin,size,back (optional: closed,fees,risk,mae,mfe,unit,note). date, token/symbol, cost/spent and proceeds/received also work.
  • Exchange trade history (Binance-style spot export): Date(UTC),Pair,Side,Price,Executed,Amount,Fee. Fills are paired into round trips per pair at average cost. Only SOL, USDT, USDC or USD quote pairs.
  • Swap list (any wallet or tracker export renamed to these headers): time,side,token,amount plus sol or usd (what you paid or got). Same average-cost pairing.

Parsed in this browser only. Open positions in a fills file stay out until they're sold. Check the result; exports differ.

Your logged trades
OpenedCoinSizeResultRHoldTagsActions
No trades yet. Log your first one above, or import a CSV.

Practise it with paper SOL

The Arena is a weekly paper-trading game. Badges reward stops, journaling and sane sizing, not just P&L.

Enter the ArenaThe Pro book · $12

How the size is worked out: loss budget = bankroll × risk %. If the stop is hit you lose roughly the stop distance plus round-trip costs, so size = budget ÷ (stop % + costs %). The lottery cap then limits it, because a rug or a gap jumps straight past your stop. Price impact uses the Playbook’s constant-product rule with the SOL side taken as half the shown liquidity. Real pools, routing and other sellers can make it worse. Not financial advice.