Trading Journal Guide

1. What is a trading journal

It is a trade logbook where, if you record one line per trade, the app automatically calculates your average price, P&L, and total balance. All you need to enter is what you bought and sold.

There is one basic principle. One order, one entry.One entry when you buy, one entry when you buy more, one entry when you sell. Instead of writing a "finished trade" all at once, each order is one entry.

2. Input fields at a glance

The input fields and autofill rules on the entry screen are as follows.

3. Order of writing an entry

1. Enter the symbol — For an instrument you already hold, the quantity, direction (long/short), and the average price in the order price field are autofilled, and a brief notice appears at the bottom left of the screen. If quantity still remains, the strategy you used at entry is also loaded automatically (editable).
2. Check the trade date & time — Please set it to the actual trade time. Calculations follow time order.
3. Choose the direction — Use buy (long) when opening or adding, and the opposite of your held direction when closing (exiting).
4. Enter the quantity — This is the amount bought or sold this time. It is the amount of this order, not the remaining balance.
5. Enter the order price — Change it to the actual fill price. The average price is prefilled, so you only need to change the number.
6. Check the ending balance — For a closing order, it is filled automatically. If it is correct, leave it as is; if not, you can edit it yourself.
7. Save

Always enter the quantity as a positive number (absolute value), and the direction button decides whether it is a buy or a sell. In other words, the quantity expresses how much you bought or sold, and the direction expresses whether you are buying or selling.

4. What the app calculates automatically

All autofilled values are suggestions and you can edit them yourself at any time. Once you edit a field yourself, that field is no longer overwritten automatically.

5. P&L is calculated in two ways

The app derives P&L in the following order. If the upper method is possible, it is used first.

1. Balance method (priority)— If both this ending balance and the total balance of the previous entry are present, the difference is treated as the P&L. This is why P&L is captured even when you enter only the ending balance, when entering quantity and entry price is cumbersome. (The first entry needs a preceding balance to serve as the baseline.)
2. Price method— If the exit price, held average price, and quantity are present, the P&L is calculated as "(exit price − average price) × close quantity" (with the sign reversed for shorts), minus the fee.

If neither is known, the P&L is empty (Open) and is filled once the close is confirmed. Because the preview calculation and the saved calculation use the same method, the screen and the saved value do not diverge.

6. Partial close (selling only part)

Even when you close only part of a position, like selling only 5 of 10 shares, the app reflects the P&L for the quantity sold and autofills the ending balance. Changing the quantity from 5 to 8 shares recalculates it immediately. The value does not disappear when you change the quantity. The average price is kept as is even after a partial close, and only the remaining quantity decreases.

7. Handling a completed close

When this order brings the net position to 0, the status automatically becomes Closed. Saving as Closed requires an ending balance, so if it is empty a notice prompts you to enter it. Also, if you try to save as Closed while quantity still remains on the same symbol, a "Are you sure you want to mark it Closed?" confirmation appears. If you confirm, the remaining open portion is settled and "Open" disappears.

8. Values you edit yourself are not overwritten automatically

The three fields ending balance, order price (average price), and status are autofilled, but once you edit one yourself, that field no longer changes automatically. Fields marked like "Auto-calculated · editable" or "Average price autofilled · editable" can be left as is, and if you enter a value yourself, that value takes precedence.

9. Recording several entries in the same time slot

Even if you record a buy and a sell back to back on the same date and same time (to the minute), the entry saved first is processed first, so the average price, P&L, and ending balance are calculated in order. Even if you scale in several times within the same minute, the average price is aggregated.

10. Draft and favorites

• Draft— If you save your in-progress content as a draft, you can load it the next time you enter the writing screen. On a successful save the draft is cleared, and you can also clear it yourself with "Clear draft".
• Favorite symbols — If you star your frequently used symbols as favorites, you can quickly pick them next to the asset field.

11. Managing the entry list

Saved entries are managed in the trading journal list.

• Wallet tabs · search — Filter by wallet, and search by symbol or tag.
• Sort · pages — Sort by newest, oldest, net P&L, or return rate, and view 10/25/50 entries per page.
• Inline editing — Editing the quantity, entry price, exit price, ending balance, or symbol directly in the table recalculates the P&L.
• Bulk actions — Select multiple entries to change their wallet or delete them at once.
• Result badge— Shows whether each trade is a profit (WIN), loss (LOSS), Open, or a close at break-even. Auto-settled remaining entries appear as "-".
• CSV export — You can download the list as a CSV file (handled so Korean does not break in Excel).

12. Frequently asked questions

When marking it "Closed", do I need to enter the quantity as 0?

No. Here the quantity is not the remaining balance but the amount bought or sold this time, so leaving it at 0 loses how much you sold and the P&L cannot be calculated. Set only the status to Closed and enter the quantity you sold this time as is.

Is it okay to edit the autofilled values?

Yes. They are all suggestions. For a field marked "Auto-calculated · editable", entering a value yourself makes that value take precedence.

I'm worried the on-screen calculation may differ from the actually saved value.

Because the preview calculation and the saved calculation use the same method, they do not diverge.

13. Tips

• Recording trades in actual time order keeps the average price and P&L accurate.
• Most fields autofill from just the symbol, so it is fast if you only change the price to the actual fill price.
• If you often sell in parts, just enter the quantity accurately each time and the total balance follows on its own.
• If entering quantity and entry price is cumbersome, entering only the ending balance also auto-calculates the P&L from the difference with the previous entry. (The first entry needs a preceding balance to serve as the baseline.)

This guide explains how to use the features and does not constitute investment solicitation or a guarantee of returns.