// NEW COIN

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⟳ REFRESH pulls prices from Coinbase for any standard symbol (BTC, ETH, SOL, etc.) — unlisted symbols like WCOR stay manual.
// NEW LOT

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// NEW TRANSACTION

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// LEARN

Crypto trading glossary

terms used in this ledger, plus first principles and links to read deeper

First principles
Tokens (held)

How many units of the cryptocurrency this lot currently holds. Computed as Σ buy.tokens − Σ sell.tokens across the lot's transactions.

Average cost

The weighted-average price you paid per token across all your buys in this lot: Σ(buy_tokens × buy_price) / Σ buy_tokens. Selling doesn't change the average — only buying moves it.

Investopedia: Average cost method →
Cost basis

The total dollar amount you spent to acquire the tokens you still hold: tokens × avg_cost. When you sell, gains/losses are calculated against this number. This is the most important number for taxes.

Investopedia: Cost basis → IRS: Digital assets →
Current value

tokens × current_price. A snapshot of what you'd theoretically get if you sold right now at the current market price. Doesn't trigger taxes — it's a paper number.

Unrealized P&L

"Paper" profit or loss — what your gain/loss would be if you sold everything in the lot at the current price. current_value − cost_basis. Doesn't affect taxes until you actually sell.

Investopedia: Unrealized gain →
Realized P&L

The profit or loss you've actually locked in by selling: Σ sell.tokens × (sell.price − avg_cost). This is your taxable amount for the year. Short-term rates if held < 1 year; long-term rates if held ≥ 1 year.

Investopedia: Capital gain → Short-term vs long-term →
Lot

A named bucket of tokens you treat as one position. Each lot tracks its own buys, sells, and resulting basis/average. Useful when multiple people share one wallet, or when you want to keep different strategies separate (long-term hold vs. short-term trade).

Coinbase Learn: Tax lot →
Wallet balance & IN SYNC

Your crypto wallet shows one number — the total tokens of each coin. The ledger lets you record that number per coin so it can verify your tracked lots sum to it. IN SYNC means the math checks out. MISMATCH means a transaction is missing here, or someone else's tokens are mixed in.

Watchlist vs Holdings

Watchlist = coins whose price you track but don't own. Useful for spotting entries. Holdings = coins where you have at least one lot with real tokens.


DCA — Dollar-cost averaging

Buying a fixed dollar amount on a regular schedule (e.g. $50 every Friday) regardless of price. You buy more tokens when the price is low, fewer when high. Smooths your average cost over time and removes the "did I pick the right moment?" stress.

Investopedia: DCA → Coinbase: DCA →
Slippage

The gap between the price you expected when you placed the order and the price you actually got. Common on DEXes for thinly-traded tokens — your order moves the market against you. Higher slippage tolerance = order is more likely to execute, but at a worse price.

Investopedia: Slippage → Coinbase: Slippage →
DEX vs CEX

DEX (decentralized exchange, e.g. Uniswap, Raydium): trades execute on-chain via smart contract, you keep custody of your tokens, no signup. CEX (centralized exchange, e.g. Coinbase, Kraken): a company holds your funds, you have an account, usually cheaper fees but counterparty risk. Small/new tokens often live only on DEXes.

Investopedia: DEX →
Volatility

How much a price swings within a given period. Higher volatility = bigger moves both directions = more profit potential AND more loss potential. Memecoins are extremely volatile; BTC is volatile compared to stocks; stablecoins are designed to have almost none.

Investopedia: Volatility →
Market cap

circulating_supply × current_price. Total dollar value of all tokens in circulation. This matters more than per-token price. A $0.0001 token with 1 trillion supply has a $100M market cap — same size as a $100 token with 1 million supply.

Investopedia: Market cap →
HODL

Crypto slang for holding through volatility instead of trading. Originated from a 2013 forum post by a drunk user who misspelled "HOLD." Now used unironically to mean "long-term conviction position."

Liquidity

How easily you can buy or sell without moving the price. Bitcoin has massive liquidity — you can move millions without budging the price much. A new memecoin might have $50k of liquidity total, meaning even a $5k trade slips badly. Always check the pool size before trading low-cap tokens.

Investopedia: Liquidity →

Tax reminder

In the US, every sale of crypto is a taxable event — even trading one coin for another. Keep accurate records all year; the IRS will not. This ledger tracks cost basis automatically, but you still owe income tax based on realized gains. Talk to a CPA familiar with crypto before a big sell.

IRS: Digital assets guidance → Investopedia: Crypto taxes overview →
Further reading

Reputable, non-pumping resources for learning more:

Coinbase Learn → Kraken Learn Center → Investopedia: Cryptocurrency → CoinDesk Learn →
// FROM WALLET TOTAL

Add buy from wallet aggregate

enter the new total balance shown in the wallet, and the USD spent on this buy. tokens & price get derived.