Trading Perps Without Blowing Up

14.1 How accounts die

Hash had seen many traders lose their accounts on perps. "It almost never happens in one dramatic trade," Hash said. "It's usually a sequence. A trade with too much leverage. No stop. A loss. Then a bigger trade to win it back. Then adding margin to a losing position. Then the liquidation email."

Mint and Node had learned every mechanism in this module. "So how do we avoid that sequence?" asked Mint.

"With rules you decide before you trade," said Hash. "Rules that make it mathematically very hard to lose everything, even when you're wrong repeatedly."

14.2 The core principle: size by risk, not by leverage

In Module 4, Chapter 16, Mint learned to size positions so that hitting the stop-loss loses a fixed percentage of the account. That rule applies even more strongly to perps.

The stop decides the risk. The risk decides the position size. Leverage only decides how much margin is locked up.

Step	Value
Account size	$10,000
Risk per trade (1%)	$100
Entry	$100,000
Stop-loss (below support, about 1.5 × ATR)	$97,000
Risk per BTC	$3,000
Position size	$100 ÷ $3,000 ≈ 0.0333 BTC
Notional	~$3,333
Effective leverage on the account	~0.33x

Mint could open this position with any leverage setting. The leverage only changes the margin locked and where liquidation sits.

14.3 Liquidation must sit far beyond the stop

Here's where leverage settings matter. Compare two choices for the same 0.0333 BTC position, using isolated margin and a 0.5% maintenance margin rate.

Leverage setting	Margin locked	Approximate liquidation price	Stop at $97,000
10x	~$333	$90,500	Stop is hit first. Planned loss of ~$100
33x	~$101	~$97,470	Liquidation is hit first. The stop never triggers

At 33x, the liquidation price sits above the stop. If BTC falls, the position is liquidated at around $97,470 before the stop at $97,000 is ever reached. Mint's carefully planned stop is useless.

"So with too much leverage, my stop-loss doesn't even exist," said Mint.

"Exactly," said Hash. "Rule: your liquidation price must be well beyond your stop, with room for slippage and wicks. If it isn't, lower the leverage."

14.4 Keep effective leverage low

Across all open positions, keep total effective leverage low (Chapter 4). Many experienced traders rarely go above 2x to 3x effective leverage on their whole account, even if individual positions use higher settings to reduce locked margin.

Effective leverage	What a 20% market move does to the account
1x	±20%
3x	±60%
5x	±100%: account wiped out on a 20% adverse move

Remember that crypto has had many 20% moves in short periods (Module 1, Chapter 13).

14.5 Hash's rules for perps

1. Risk 1% to 2% of the account per trade, sized from the stop.
2. Every position has a stop-loss, attached when the position opens, set as reduce-only and stop-market (Chapter 11).
3. Liquidation price sits far beyond the stop. If it doesn't, lower the leverage.
4. Keep total effective leverage low, ideally below 3x.
5. Use isolated margin for speculative trades (Chapter 5).
6. Never add margin to a losing trade to avoid being stopped out. The stop is where the idea is wrong.
7. Set a daily or weekly loss limit. If you hit it, stop trading until the next period.
8. Check funding before entering, and include it in your plan (Chapter 7).
9. Keep most of your capital outside derivatives accounts (Module 2).
10. Reduce size or stay out around major events and extreme positioning (Chapters 9 and 10).

14.6 Common mistakes

Mistake	Why it destroys accounts	Rule that prevents it
Very high leverage	Normal noise causes liquidation	Rules 3 and 4
No stop-loss	One move can take the whole margin	Rule 2
Revenge trading	Bigger trades after losses compound damage	Rule 7
Adding to losers	Turns small losses into large ones	Rule 6
Overtrading	Fees and funding steadily drain the account	Plan every trade (Module 4, Chapter 16)
Cross margin on speculative trades	One trade can take everything	Rule 5
Ignoring funding	Slowly erodes margin	Rule 8
Trading tiny tokens with high leverage	Thin books, manipulation, extreme wicks	Start with major markets

14.7 The maths of survival

Module 4, Chapter 16 showed that a trader who risks 1% per trade survives long losing streaks. With perps, the same applies, plus extra costs.

	Trader A	Trader B
Risk per trade	1%	20% (high leverage, no stops)
After 5 losses in a row	~95% of account left	~33% of account left
After 10 losses in a row	~90% left	~11% left

Ten losses in a row happens to almost every active trader eventually. Trader A can keep learning. Trader B is effectively finished.

14.8 A pre-trade checklist for perps

Before every perp trade, Mint now answered these questions:

1. What's my setup, and where is my stop? (Module 4)
2. What position size gives 1% to 2% risk?
3. Which leverage setting puts liquidation well beyond my stop?
4. What's my total effective leverage after this trade?
5. Is margin mode isolated?
6. What are funding, open interest, and positioning showing? (Chapters 7, 9, and 10)
7. Are there major liquidation clusters near my entry or stop? (Chapter 10)
8. What are the round-trip fees and expected funding? (Chapter 11)
9. Is a major event coming?
10. Am I trading because of the setup, or because of emotion?

14.9 Should you trade perps at all?

Node asked the honest question. "After all this, should a normal person trade perps?"

"Many shouldn't," said Hash. "If you don't have a tested plan, a journal, and the discipline to follow these rules, perps will probably take your money. But understanding them is valuable for everyone. Perps drive liquidations, squeezes, and much of crypto's volatility. And used carefully, they're powerful tools for hedging."

Mint added, "And if I do trade them, I start small, with low leverage, and treat it as learning, not income."

"That's the right starting point," said Hash.

14.10 Module 7 wrap-up

"I've learned why derivatives exist, how futures and perps work, margin and leverage, cross and isolated margin, index and mark prices, funding, liquidations, open interest and positioning, heatmaps, order types and fees, hedging and basis trades, and decentralised perp exchanges," said Mint.

"And the most important lesson?" asked Hash.

"Leverage multiplies everything: gains, losses, fees, funding, and mistakes. The stop decides my risk. Leverage should never be allowed to decide it for me."

Node, who'd lost a position to liquidation in Chapter 8, nodded. "I'll use perps for hedging. And if I ever trade them, it'll be with these ten rules taped to my screen."

"Next, we look at the other major derivative," said Hash. "Options. They let you do things perps can't, like limiting your maximum loss from the start, or earning income from volatility."

14.11 Try it yourself

Write a full perp trade plan for one hypothetical BTC trade using the checklist in section 14.8. Calculate the position size for 1% risk on a $10,000 account, the liquidation price at three different leverage settings, and the effective leverage. Identify which leverage settings would put liquidation before your stop. Don't place the trade. Record it in your journal and review it in a week.

Key takeaways from this chapter

1. Size positions from the stop-loss and risk per trade. Leverage only changes margin and liquidation distance.
2. Liquidation must sit well beyond the stop; with too much leverage, the stop never triggers.
3. Keep total effective leverage low, ideally below 3x, because crypto regularly moves 20% or more.
4. Follow fixed rules: small risk per trade, stops on every position, isolated margin, no adding to losers, loss limits, funding checks, and capital kept outside derivatives accounts.
5. Most account blow-ups come from a sequence of avoidable mistakes, not one bad trade.
6. Small risk per trade lets you survive the long losing streaks every trader faces.
7. Many people shouldn't trade perps, but everyone benefits from understanding them.

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Coming up in Module 8: Crypto Options. Calls and puts, payoffs, premiums, implied volatility, the Greeks, how crypto options markets work, and basic strategies for hedging and income.