Most fashion brands report on their season. The best ones trade it.
Most fashion brands invest enormous energy in the planning and buying process. Months of range planning, collection briefs, OTB reviews, buying meetings; all aimed at making the best possible decisions before the season begins. And then the season starts, and something interesting happens: many of those same brands stop actively managing what they've built.
They report on it. They review it. They express concern about it in weekly meetings. But they don't trade it - not in the active, disciplined, decision-making sense that the word implies. The plan was made. Now they're watching to see what happens.
This is one of the most common and expensive gaps in fashion retail. And it's almost entirely invisible until the end of the season, when the markdown bill arrives.
The difference between reporting and trading
Reporting tells you what happened, trading decides what to do about it.
These sound like the same thing, and in many businesses they get conflated into the same meeting. Someone presents the numbers. The room discusses them. Everyone nods. The meeting ends. And then nothing changes until next week, when the same numbers are presented again, slightly worse.
Real in-season trading is different. It starts with the same data (sell-through, weeks of cover, stock on hand, intake coming) but it ends with decisions. What do we chase? What do we cut? What needs to be marked down now, before it's too late to recover margin? What's selling better than planned, and do we have the inventory to capitalise on it?
The discipline isn't in the reporting. It's in the decision-making cadence that the reporting is supposed to trigger.
A weekly trade meeting that ends without decisions isn't a trading meeting. It's a status update with better slides.
The weekly trading rhythm
Effective in-season trading runs on a weekly cadence; fashion moves too fast for anything slower. A style that's selling out every Monday morning needs a reorder decision by Tuesday at the latest. A style that hasn't sold a unit in three weeks needs a markdown conversation before it becomes an end-of-season problem.
The weekly trade meeting is the heartbeat of this rhythm, but its value depends entirely on how it's structured. The most effective format I've worked with follows a consistent agenda: performance review, then exception management, then decisions and actions.
Performance review
Not every style, every category, every channel. The goal of a good weekly performance review is to surface what needs attention, the overperformers and the underperformers, quickly enough to act on them while there's still time. Broad summaries tell you how the season is going. Exception reporting tells you what to do about it.
Exception management
The two exceptions that matter most are selling out and not selling. A bestseller running out of stock is a lost sale problem, and in many cases, an entirely avoidable one if the replenishment logic is right and the reorder trigger is set correctly. A slow mover accumulating weeks of cover is a margin problem and the longer it's left, the more expensive the fix. Both need active management, not passive monitoring.
Decisions and actions
Every trade meeting should end with a list of specific actions, owners, and deadlines. Not "we need to look at the coat category", but "we're marking down the wool coat by 20% from Monday, owned by the trading team, briefed to e-commerce by Thursday." The specificity is what makes the difference between a meeting that drives outcomes and one that produces shared awareness of a problem that nobody has been tasked with fixing.
The KPIs that actually matter
In-season trading runs on a relatively small number of metrics. The challenge isn't accessing the data, most brands have more data than they know what to do with. The challenge is knowing which numbers to act on and which to simply note.
Sell-through rate
The most fundamental metric in trading. What percentage of the bought quantity has sold, at what point in the season? A style at 40% sell-through in week four of a twelve-week selling period is in very different shape to the same style at 40% sell-through in week ten. Sell-through only means something in the context of where you are in the season and what your planned sell-through target was at this point.
Weeks of cover
How many weeks of stock do you have left at the current rate of sale? This is the metric that tells you whether you have a stock problem or a sales problem. A style with two weeks of cover and eight weeks of season left needs attention immediately: either a reorder or a rate-of-sale intervention. A style with twelve weeks of cover in week eight of the season is a markdown conversation.
Full-price sell-through
Not just how much sold, but how much sold at full price. This is the metric that connects in-season trading to margin. A style that achieves 90% sell-through but 60% at full price has performed very differently from one that achieves 80% sell-through with 75% at full price. The markdown decisions you make in-season (when you take them and how deep you go) will define your full-price sell-through rate, and therefore your margin.
Intake versus plan
Is the stock arriving when you planned it to? Late intake is one of the most common and underestimated causes of lost sales - a style that was planned to land in week two but arrives in week five has lost three weeks of selling time at full price. Tracking intake versus plan weekly allows you to anticipate availability problems before they become sales problems.
Size curve integrity
A style showing as in-stock but with only extreme sizes remaining isn't available in any meaningful sense. Size-level sell-through tracking is harder to build but essential for any brand where sizing matters, which is to say, any fashion brand. Broken size ratios are one of the most common sources of invisible lost sales, and they only show up in the data if you're looking at the right level of granularity.
The in-season trading mindset
Beyond the meetings and the metrics, effective in-season trading requires a particular way of thinking about the season. One that takes some time to develop and is genuinely different from the mindset of planning.
Planning is inherently optimistic. You build a plan based on what you expect to happen, informed by historical data and commercial judgment. The plan represents your best view of the future at the point it's made.
Trading is inherently pragmatic. The season is live. The plan was your best guess. Reality is now telling you something different, and the question isn't whether the plan was right or wrong, but it's what you do with what you know now.
The traders I've most respected over the years share a few qualities. They're fast: they make decisions when there's still time to make them matter, not when the outcome is already determined. They're unsentimental: they don't defend a style that isn't working because they believed in it at buying. And they're proactive: they're looking for problems before the data forces the conversation, not waiting for a bad week to prompt a review.
The best traders I know don't wait for the data to tell them there's a problem, because they're already three weeks ahead of it. My team at Pandora was excellent at this.
Why many brands don't trade properly and what it costs them
In-season trading is hard to prioritise. The buying is done, the collection is landed, and there's a natural tendency to shift attention to the next season: the next range plan, the next buying trip, the next creative brief. In-season trading feels like maintenance rather than strategy.
This is a misreading of where value is created. The buying sets the parameters. The trading determines what happens within them. A well-bought season with poor in-season trading will underperform. A season with some buying mistakes but excellent in-season management will recover faster, sell more at full price, and end with less excess. The margin difference between these two scenarios is significant, and largely invisible in the reporting until it shows up in the end-of-season numbers.
The other cost is less quantifiable but equally real: the lost learning. A brand that reports on performance but doesn't actively trade it misses the signal in the data. Why did that style underperform? Was it priced wrong, landed late, sized incorrectly, or simply not the right product? Without the discipline of weekly trading conversations, those questions go unanswered and the same mistakes get made the following season.
In-season trading isn't the unglamorous end of the merchandising process. It's where the commercial intelligence of the business gets sharpest and where the real difference between a good season and a great one gets made. If your business reports on trading but doesn't act on it, that's where to start.
