What Is Cryptocurrency Trading and How Does It Actually Work?
Most "what is crypto trading" articles are either 50 pages of blockchain history or a two-paragraph fluff piece. This one is the middle option: a working explanation of what actually happens when you click Buy, and the six or seven mechanics you actually need to know.
What a trade actually is
Under the hood, every trade is a match between a buyer and a seller. You want to buy BTC at $60,000. Someone else is willing to sell BTC at $60,000. The exchange matches you. Your account gets BTC, their account gets USD. Both accounts pay a small fee to the exchange for making the match happen.
That is it. Everything else is variation on the theme. The complexity comes from how the match happens, what type of instrument you are trading, and what fees apply.
Spot vs perpetual: two different products
Spot trading: you actually own the underlying asset. You buy 1 BTC, you have 1 BTC. You can withdraw it, send it to another wallet, hold it forever. No leverage, no funding costs. Just ownership.
Perpetual futures (perps): you own a contract that tracks the price of the underlying asset. You never take delivery of BTC. Instead, your PnL is settled in stablecoins (usually USDT or USDC) based on price movement. Perps allow leverage (borrow 5x, 10x, sometimes 50x+ your capital) and have their own quirks:
- No expiry. Unlike traditional futures, perps do not expire. You can hold them indefinitely (as long as you meet margin requirements).
- Funding rate. To keep the perp price tethered to spot, longs pay shorts (or vice versa) every 8 hours. In a strong bull market, funding is often positive, meaning longs pay a small fee to hold. In a strong bear, funding flips and shorts pay.
- Liquidation risk. If your leveraged position moves against you and your margin drops below maintenance requirements, the exchange automatically closes your position at a loss. Higher leverage = smaller adverse move needed to liquidate.
For beginners: use spot. Perps add complexity and risk that beginners cannot properly account for.
Order types: how you actually place a trade
Four types you need to know:
Market order: buy or sell at the current best available price, right now. Fills instantly (assuming liquidity). Pays taker fees. Slippage possible on illiquid pairs.
Limit order: buy or sell at a specific price you choose. Sits in the order book until someone else matches it or you cancel. Might not fill if price never touches your level. Pays maker fees (usually lower).
Stop order: converts to a market order once price hits a trigger. Used mainly for stop-losses ("if BTC drops to $58,000, sell my position"). Also used for stop-buys ("if BTC breaks $62,000, buy the breakout").
Stop-limit order: like a stop, but the resulting order is a limit order at a specified price, not a market order. Gives you more control on fill price but risks not filling at all if price gaps past your limit.
Most beginners overuse market orders (fast, easy, more slippage) and underuse limit orders (patient, cheaper, better fills). Learning to use limits is one of the highest-ROI habits for a new trader.
Maker vs taker: the fee model
Every exchange charges a fee on every trade. The fee depends on whether you added liquidity to the book or took it away.
Taker: your order matches an existing order in the book. You took liquidity. Higher fee. Market orders are always taker.
Maker: your order sits in the book waiting to be matched. You made liquidity. Lower fee. Limit orders that do not immediately match are maker.
Rough numbers: taker fees on major exchanges range from 0.06% to 0.15% per side. Maker fees range from 0.02% to 0.06%. On a round-trip (in and out), the total fee cost is 2x whichever side each leg was.
At Botsfolio we use 0.12% round-trip in our backtests as a conservative real-world estimate that also includes some slippage on top of the raw fee.
Liquidity and slippage: the hidden cost
Liquidity is how much you can buy or sell without moving the price. Deep liquidity = you can trade size without slippage. Thin liquidity = your order alone moves the market against you.
Major pairs (BTC/USDT on a top exchange) have deep liquidity. You can buy $100k of BTC without noticeably moving the price. Small alts on small exchanges have thin liquidity. A $10k order might move the price 2-5% against you.
Slippage is the difference between the price you expected and the price you got. It shows up mostly in two situations:
- Market orders on illiquid pairs.
- Any large order that eats through multiple levels of the order book.
The fix: use limit orders where possible, trade major pairs where liquidity is deep, and if you must trade illiquid instruments, size down.
Funding rates: the perp-specific cost
If you trade perpetuals, funding is the second-biggest cost after exchange fees. Every 8 hours, the exchange calculates the difference between perp price and spot price, and one side pays the other to bring them back in line.
Positive funding (perp trading above spot): longs pay shorts. If you are long BTC perps in a strong bull, you might pay 0.03% every 8 hours, which annualizes to ~30%+. Not trivial.
Negative funding (perp trading below spot): shorts pay longs. Often happens in strong bear phases or during liquidation cascades.
Funding does not affect PnL from price movement (your entry and exit prices are separate). It is a holding cost, deducted from your margin balance every 8 hours. For short-term trades, negligible. For multi-day perp positions, funding can be a significant fraction of your total return.
The three biggest cost buckets in trading, in order: fees (bid-ask + exchange), funding (for perps), slippage (worst on illiquid pairs). Master these three and you have the cost side of trading under control.
How a trade actually executes
Walking through a complete example. You want to long BTC.
- You open the exchange. Check spot vs perp mode. You choose spot.
- You look at the order book. Best bid $59,995, best ask $60,005. Spread is $10. Depth looks fine — several BTC available within 0.1% of best price.
- You place a limit buy at $60,000. Sits in the book. If another trader hits your bid, you fill.
- Alternative: you place a market buy for 0.1 BTC. Fills instantly at best ask ($60,005 + slippage if you sweep multiple levels). You paid a taker fee (~0.1% = $6 for a 0.1 BTC = $6000 trade).
- Your BTC balance goes up by 0.1, your USD balance goes down by ~$6006.
- Later you sell. Reverse of the above. Same fee model.
- Your net PnL is: exit price minus entry price, times position size, minus round-trip fees.
That is the whole mechanic. Everything else is applying analysis to WHEN to place the trade and WHERE to set your stops and targets. Once you understand the mechanics, you can ask the companion to walk you through a real setup on any coin.
Once you know the mechanics, the next step is applying them. Ask Botsfolio to walk through a real setup on any major coin — entry, stop, size, and target — using today's chart. It explains the reasoning at every step. Walk me through a real setup
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Educational analysis, not financial advice. Past performance does not predict future results.