Coherent (COHR) could turn its AI data center orders into much larger profit, or lose part of that gain to production costs. Demand is the settled part of your thesis. Management has said the company is booked through the end of calendar 2027. The loose end is how much of each sales dollar Coherent keeps after the cost of making its products.

Coherent Kept About 40 Cents Of Each Sales Dollar

Coherent kept 40.2 cents of each sales dollar in its fiscal fourth quarter of 2026. That share is called the gross margin. It is what remains of sales after the cost of making the products. The 40.2% is management's adjusted figure. It was more than two percentage points higher than a year earlier.

Analysts asked about gross margin on Coherent's fiscal fourth-quarter 2026 call, including how it would change as sales grow. Management's target is a gross margin greater than 42%. Coherent is close to that target, but it has not reached it.

What Is One Margin Point Worth To Coherent?

One point of gross margin was worth about $20 million of gross profit in the fiscal fourth quarter of 2026. That is one percent of the quarter's revenue of $2.05 billion. Revenue was up 34% from a year earlier. One point would be worth about $30 million a quarter at $3 billion of quarterly revenue. Management expects to pass that level by the end of fiscal 2027.

Coherent stock trades at 77.6 times its past twelve months of earnings, against 21.4 for the S&P 500. The price appears to assume profit will keep rising quickly. Growing sales are one source of that profit. A higher gross margin is another.

What Has Coherent Said About Its 42% Target?

Management has said it will raise the target once Coherent's gross margin passes 42%. It has also said where a higher margin should come from. Coherent is moving production of its Indium Phosphide products to larger, 6-inch wafers. Management has said a 6-inch wafer gives four times the output of a 3-inch wafer at half the cost. Management also expects new products to help the margin.

Management has said gross margin has risen in 8 of the past 9 quarters. But it has said the gains from each effort will arrive at different times. For the fiscal first quarter of 2027, it guided gross margin to between 39.5% and 41.5%, also on its adjusted basis. Even the top of that range is below the target.

Watch Coherent's Fiscal Q1 2027 Adjusted Margin Against 40.2%

Coherent will report its next gross margin figure with its fiscal first-quarter 2027 results. Coherent's orders are booked through calendar 2027. So its sales could keep climbing even if its gross margin stops rising.

An adjusted figure above the fiscal fourth quarter's 40.2% would be a sign Coherent is still moving toward its target. A result below that level would mean the margin moved away from the target in that quarter.

Does This Mean You Should Act On COHR?

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