Inventory Trading

By Shonn Campbell

Overview

Published in 2014, "Inventory Trading" by Shonn Campbell presents an unconventional approach to forex trading that draws its primary metaphor from retail business operations. Campbell, a former athlete who transitioned to forex trading, reframes currency trading from a speculative activity into an inventory management discipline.

Key Themes and Arguments

The Inventory Mindset

The book's central innovation is the reconceptualization of forex trading as a retail business. Instead of trying to predict market direction, traders are encouraged to think of themselves as retailers who buy inventory (currency positions) at wholesale prices and sell at retail prices, maintaining defined profit margins on each transaction.

The Retail Business Model

Campbell draws detailed parallels between retail business operations and forex trading: just as a retailer selects products based on demand, buys at wholesale, marks up for retail sale, and manages inventory levels, a forex trader selects currency pairs, enters at favorable prices, targets defined profit levels, and manages overall position exposure.

Financing the Model

The book addresses the capitalization and leverage considerations of the inventory trading approach, drawing parallels between business financing (bank loans, lines of credit) and trading account leverage. Campbell discusses how to size positions appropriately relative to account capital.

Practical Trading Method

Campbell details his specific approach to implementing the inventory method, including how he identifies entry points, sets profit targets based on the retail markup concept, manages multiple open positions, and handles adverse price movements.

Trading Psychology

The book argues that the biggest obstacle to trading success is mental rather than methodological. By adopting the business mindset, traders can distance themselves from the emotional attachment to individual trades and focus on the overall profitability of their "business."

Significance

While not a conventionally rigorous trading text, "Inventory Trading" offers a useful conceptual framework for forex traders who struggle with the psychological challenges of speculative trading. Its business analogy provides an alternative mental model that some traders find more actionable than traditional technical or fundamental frameworks.