Sell-through curves: pricing markdown risk early

September 7, 2026 · 5 min · Free, with full transcript

Panama Canal transit caps and Red Sea reroutes from the Iran conflict are adding 10 to 14 days per container and pushing landed costs up double digits, so fall apparel lands in October instead of August. The question is what a CFO does when the reorder and chase window has closed and the only remaining lever is price. The position here: read sell-through against a curve, not a flat weekly target, and recognize the markdown when the signal appears. You walk away with a 15 point trailing rule at the one third mark of the selling window, a method for sizing a markdown reserve at 30 to 50 percent discount depth, guidance on holding ticket price on fashion while conceding on basics, and a view on Inditex short cycles and AI markdown tools.

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4 min

Chapters

Key takeaways

  • Measure sell-through against a planned curve by week, not against a flat weekly target.
  • Treat any item trailing its curve by more than 15 points at the one third mark of the selling window as dead and cut it.
  • Size the markdown reserve now: stuck units times expected discount depth of 30 to 50 percent, and book it against the current quarter rather than December.
  • Hold ticket price on true fashion items where the customer is not cross shopping, and take the margin hit on basics.
  • Discount vendor sell-through benchmarks that come from software case studies, and use tools to speed up the math rather than replace judgment.
Read the full transcript

Welcome to the Leaders Insights Podcast.

Today's episode, reading sell-through and markdown risk in a seasonal buy when your

supply chain just got shorter.

The Panama Canal is still throttling traffic in 2026.

The Iran war disruptions piled on top and apparel CFOs are staring at fall inventory

that arrive late and cost more.

So tell me straight, how bad is the margin damage right now?

Worse than most boards admit, the Panama Canal Authority has been capping daily

transits well below the normal 36 since the drought reduction started.

And now the Red Sea reroutes from the Iran conflict are stacking on another 10 to 14

days per container.

That's landed cost up double digits and your fall assortment showing up in

October when you needed it in August.

But every CFO says we'll just manage the markdowns.

What's actually different this season?

The slack is gone.

In a normal buy, you have a reorder window.

You read early sell-through, chase the winners, kill the losers before they pile up.

This year, by the time your goods clear, your chase window has closed.

So you're committed to the buy you placed in the spring, and

you can't fix it with inventory.

You can only fix it with price.

Fine, so how do I read sell-through early enough to matter before the season

buries me?

Sell-through, the percentage of units you've sold against what you received.

The mistake is measuring it weekly against a flat target.

You want to measure it against the curve.

If a sweater should be 40% sold through by week three, and it's at 22%,

that's not a slow start.

That's a markdown in waiting.

Flag it at week three, not week eight.

Give me a number.

What's the threshold where you stop hoping and start cutting?

My rule?

If you're trailing your sell-through curve by more than 15 points at the 1

third mark of the selling window, the item is dead.

Hope is not a pricing strategy.

Zara's parent, Inditex, built its whole model on short cycles,

precisely so it never carries this risk.

They'd rather miss a sale than sit on unsold goods.

Most of us can't move that fast, so we pay for the lag at the register.

You said price the markdown before it accumulates.

That sounds like accountant fantasy.

Walk me through it.

It's not fantasy, it's arithmetic.

Take the units you think you'll be stuck with,

multiply by the discount depth you'll eventually need,

usually 30 to 50% for apparel,

and book that as a reserve now against this quarter.

A markdown reserve, money you set aside expecting to discount.

If you wait until December to recognize it,

you've flattered your fall numbers and then torched Q4.

Recognize the pain when the signal appears.

Boards hate that.

You're voluntarily reporting a worse quarter.

They hate the surprise more.

I ran a specialty retailer where we took a $4 million reserve in October

because sell-through on outerwear was 18 points behind curve.

Ugly call.

But when the actual markdowns hit, there was no drama.

It was already in the numbers.

The CFO who protects the quarter by hiding it

just moves the blow up to a quarter where it's harder to explain.

What about the landed cost side?

Can you price the freight inflation into the customer,

or is that dead on arrival?

Selectively.

On your true fashion items, the pieces bought for the look, not the price.

You have room to hold ticket price and eat a little margin

because the customer isn't cross shopping on cost.

On basics, forget it.

A $12 tea at $15 loses to the guy who sourced earlier.

So protect margin where you have pricing power

and take your medicine on the commodity stuff.

And the vendors selling you dashboards promising AI markdown optimization,

The forecasting is genuinely useful,

and I'd flag that most of those sell-through numbers

come straight from the software vendors' own case studies.

So shave them.

The math I described you can do in a spreadsheet,

the tool speeds it up.

It doesn't replace the judgment about which items are worth defending.

One thing my listeners do Monday morning, go.

Pull every fall style,

plot it against its sell-through curve,

and any item trailing by 15 points at the one-third mark.

Reserve the markdown today.

Don't wait for the season to tell you what the curve already knows.

Sources for today's episode,

Financial Times Accounting Today.

Done.

Want to know where you actually stand?

Take the CFO self-assessment at MBA-training.com.

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