Perpetual Trading

What is Perpetual Trading?

Perpetual Trading is buying or selling a contract that tracks an asset price without any expiry date. You can keep the position open as long as you want, funding payments permitting, and trade both directions. Think of it as a futures contract that never expires, like streaming instead of DVDs.

How Perpetual Trading works

Quick path from idea to execution. Here is a simple walk through that keeps it human.

1. Step 1: Pick a market and direction. Bullish vibes mean you consider long trades. Bearish mood means you look the other way.
2. Step 2: Set size and choose your Leverage. Smaller margin means bigger swings, good and bad.
3. Step 3: Price moves decide your profit or loss. Funding payments tick every few hours, so you might pay or get paid while you hold.
4. Step 4: Manage risk. If you think price will fall, short traders set alerts and stops to avoid nasty surprises.
5. Step 5: If losses eat your margin, the exchange can trigger a liquidation, which force closes your position.

That is the core loop. Simple idea, serious consequences.

Why Perpetual Trading Matters

So why should you care about Perpetual Trading? A few reasons stand out.

• Benefit: Trade both directions, hedge your bag, and keep positions open for as long as your margin allows.
• Perspective: It is where a lot of price discovery and memes collide, from degen seasons to cautious hedging by pros.
• Relevance: You will see perps on major exchanges and on chain platforms, right next to your favorite coins and NFTs.

Key Characteristics of Perpetual Trading

These features give Perpetual Trading its flavor.

• No expiry: You can hold positions indefinitely, funds permitting.
• Funding rate: Periodic payments between longs and shorts keep contract prices near the index.
• Margin based: You post collateral and your buying power scales with position size.
• Mark price: Liquidations use a fair price, not last trade price, to reduce nasty spikes.
• Two sided: Profit when price rises or falls, all in one product.

How is Perpetual Trading calculated?

There is no single formula for Perpetual Trading, but two numbers matter most: profit and loss and funding.

For a linear perp, profit and loss equals position size times price change:

PnL = Quantity x (Exit Price - Entry Price)

Example: buy 0.5 BTC at 25,000 and sell at 25,800. PnL equals 0.5 x 800 equals 400.

Funding payment is based on notional and the funding rate over the interval:

Funding Payment = Notional Value x Funding Rate x Time Share

If your notional is 20,000 and the funding rate for the period is 0.01 percent, payment equals 2. Positive means you pay, negative means you receive.

Variations

Perpetual Trading comes in a few flavors you will bump into:

• Linear: Settled in a stable coin like USDT, PnL moves linearly with price.
• Inverse: Margined and settled in the base coin like BTC, PnL is in coin terms.
• Cross margin: All your collateral backs every position, which can help or hurt.
• Isolated margin: Each position has its own margin, which caps risk to that one trade.
• On chain: Perps that run on decentralized exchanges with oracle based pricing.

Example

You open one ETH perp at 3,000, it jumps to 3,060, you close and net 60 per coin minus fees and any funding you paid during the hold.

Fun Fact

The first popular perpetual swap went live in 2016 and it spread like a meme, because traders loved the no expiry design and the constant action.

Wrap-Up

Perpetual Trading in one line: a never ending futures contract that lets you express a view fast, with margin, and with rules you should learn before you size up.