What Is Profit and Loss (PnL) and How to Calculate It

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Anyone involved in trading—whether in traditional finance or cryptocurrencies—should understand profit and loss (PnL). While the core concept remains similar, cryptocurrency trading introduces unique terms like mark-to-market (MTM), realized PnL, and unrealized PnL. Grasping these helps traders evaluate their crypto holdings effectively.

Without a structured PnL analysis, crypto trading can feel overwhelming. PnL reflects changes in the value of a trader’s positions over time. Let’s break it down in the context of cryptocurrency.


Key PnL Terminology

Mark-to-Market (MTM)

MTM values an asset based on its current market price. For example, if you hold Bitcoin, its value fluctuates with market prices.

Formula:
[ \text{PnL} = \text{Current MTM Price} - \text{Previous MTM Price} ]

Example:

If ETH’s MTM dropped to $1,600**, the PnL would show a **$350 loss.


Future Value

This estimates a coin’s value at a future date.

Example:

Discount Factor Formula:
[ \text{Discount Factor} = \frac{\text{Present Value}}{\text{Future Value}} ]

For the TRX example:
[ \frac{$1,000}{$1,040} = 0.9615 ]


Realized PnL

Calculated after closing a position (selling the crypto). It uses the executed trade price, not the mark price.

Formula:
[ \text{Realized PnL} = \text{Exit Price} - \text{Entry Price} ]

Example:

If sold at $55**, the PnL becomes a **$15 loss.


Unrealized PnL

This reflects open positions’ profit/loss before closing.

Formula:
[ \text{Unrealized PnL} = \text{Mark Price} - \text{Entry Price} ]

Example:


PnL Calculation Methods

1. FIFO (First-In, First-Out)

Uses the oldest purchase price first.

Example:

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2. LIFO (Last-In, First-Out)

Uses the newest purchase price first.

Same example:

3. Weighted Average Cost

Averages all purchase prices.

Example:


Advanced PnL Scenarios

Perpetual Contracts

These futures contracts lack expiration dates. Calculate both realized and unrealized PnL, then sum them.

Steps:

  1. Track all trades (entry/exit prices).
  2. Adjust for fees and funding rates.

Year-to-Date (YTD) Calculation

Measures performance from January 1 to now.

Example:


Tools for PnL Tracking

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FAQs

Q: What’s the difference between realized and unrealized PnL?
A: Realized PnL reflects closed trades; unrealized PnL tracks open positions.

Q: How do fees impact PnL?
A: Trading fees reduce net profit. Always factor them in.

Q: Which PnL method is best for crypto taxes?
A: FIFO is widely accepted, but check local regulations.

Q: Can unrealized PnL become negative?
A: Yes, if the asset’s value drops below your purchase price.


Final Tip: Consistently monitor PnL to refine strategies and maximize returns. Happy trading! 🚀