Lumentum vs Sandisk: Tech Stock Comparison

Which tech stock offers better growth: Lumentum's optical tech or Sandisk's flash memory?

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Oct 28, 2026

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Lumentum vs Sandisk: Tech Stock Comparison

Which tech stock offers better growth: Lumentum's optical tech or Sandisk's flash memory?

In brief

Which tech stock offers better growth: Lumentum's optical tech or Sandisk's flash memory? Lumentum's long-term AI growth potential makes it a better buy than Sandisk despite Sandisk's current profitability. Originally reported by The Motley Fool.

Lumentum's Tech Focus

Lumentum's Tech Focus

Lumentum designs optical components for high-speed data centers and cloud infrastructure.

Sandisk's Storage Specialization

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Sandisk produces flash-memory solutions for consumer gadgets and massive cloud systems.

Lumentum's Market Performance

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Lumentum's stock rose 5.88% to $866.18 with a market cap of $78 billion.

Sandisk's Market Performance

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Sandisk's stock rose 3.92% to $1,304.84 with a market cap of $189 billion.

Lumentum's Customer Risk

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Lumentum relies on Customer A for 26.6% and Customer B for 15% of net revenue.

Lumentum's Recent Growth

Lumentum reported $3 billion revenue, an 83% year-over-year increase, but a $6.9 billion net loss.

Sandisk's Diversified Base

Sandisk has no single client accounting for more than 10% of net revenue in fiscal 2026.

Sandisk's Profitability

Sandisk reported $11.4 billion net income with $20 billion revenue in fiscal 2026.

Lumentum's Financial Health

Lumentum has a debt-to-equity ratio of 0.4x and $300 million free cash flow.

Sandisk's Financial Strength

Sandisk has negligible debt, a current ratio of 2.3x, and $11.5 billion free cash flow.

Lumentum's AI Advantage

Lumentum benefits from AI's growing need for optical interconnects as models become more complex.

What to remember

Lumentum's long-term AI growth potential makes it a better buy than Sandisk despite Sandisk's current profitability.

Read the original on The Motley Fool

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