Broadcom: the attach rate is the number that matters

Attach on the adjacent silicon has risen for four consecutive quarters off a much smaller base. Mix alone carries the gross margin without a single extra unit shipped.

Marcus Webb@marcus_webb

Evidence · 5 cards

The case

Broadcom: the attach rate is the number that matters

Attach on the adjacent silicon has risen for four consecutive quarters off a much smaller base. Mix alone carries the gross margin without a single extra unit shipped.

The edge

The Street says

Consensus models the cycle turning in the second half
Sell-side target clusters within 8% of spotAuto

I say

The turn already happened in order intake two quarters ago
My number is 14% above the street on the out yearCreator est.

The kill switch

I'm wrong if

Order intake declines two consecutive quarters
Gross margin below 44% on any printCreator est.
Close below the lock price on above-average volume

Catalyst timeline

JUL 18, 2026 · PAST
Q results, margin guide reiterated
AUG 12, 2026 · PAST
Analyst day, capex framework updated
SEP 11, 2026
Next print, the number that decides this

The steelman

The counterpoint

“You are underwriting a margin structure that has only held for three quarters.”

The counter-counterpoint

Three quarters through a pricing reset that took two competitors out of the market. The structure is the consequence of the exits, not of the cycle.

The analyst chose to be challenged and answered on the record.

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