Silicon Lab

The chip index moved -10.1% over 21 sessions. 2 of 14 tracked shares rose, while the gap between the best and worst stock reached 36.9 points.

This page checks how broad the chip move is, which shares are separating from the sector and whether rates, the dollar or market fear currently explain the daily moves.

Completed market prices through 2026-09-16

one macro force, many different share reactions

Chip index · 21 sessions-10.1%SOXX price move

Chip index · 63 sessions-15.0%A longer view

Tracked shares rising2 of 14Over 21 sessions

Above 50-day average7 of 14Current trend

Beating the chip index9 of 14Over 21 sessions

Buying pressure positive5 of 14Price and trading agreement

Best performerQCOM+14.6%

Best-to-worst gap36.9%QCOM versus AMAT

Move without the leader-9.9%Equal share for every remaining stock

Moved together0.651 means daily moves matched

Link with US 10-year yield-0.01Past 60 sessions

Link with the dollar-0.23Past 60 sessions

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One sector, different reactions.

The table separates the market move from each company’s own move. A high reading in “against the index” means the share beat SOXX over the same 21 sessions.

Company	Ticker	1 session	21 sessions	63 sessions	Against SOXX	50-day trend	Buying pressure	Trading pace	From yearly high
Qualcomm	QCOM	-1.6%	+14.6%	-13.2%	+24.7%	Above	0.11	1.1×	-25.7%
AMD	AMD	+1.6%	+1.3%	+1.0%	+11.4%	Above	0.12	0.8×	-11.8%
Marvell	MRVL	+3.6%	-2.0%	-17.5%	+8.2%	Above	-0.04	0.7×	-27.4%
Intel	INTC	+4.0%	-2.4%	-13.7%	+7.8%	Above	0.08	0.9×	-28.3%
TSMC	TSM	+1.2%	-2.8%	-1.6%	+7.3%	Above	0.02	0.9×	-12.3%
NVIDIA	NVDA	+0.8%	-4.8%	+3.2%	+5.3%	Above	-0.27	0.8×	-9.1%
Texas Instruments	TXN	-1.0%	-7.9%	-14.3%	+2.3%	Below	-0.06	0.7×	-21.1%
Micron	MU	-0.1%	-8.4%	-9.2%	+1.7%	Above	0.12	0.6×	-23.6%
Arm	ARM	+0.9%	-10.1%	-38.4%	+0.0%	Below	-0.09	0.7×	-44.5%
Broadcom	AVGO	+0.1%	-13.5%	-9.7%	-3.3%	Below	-0.06	1.1×	-29.4%
ASML	ASML	+0.7%	-14.9%	-11.1%	-4.8%	Below	-0.25	0.9×	-19.4%
KLA	KLAC	-0.4%	-18.7%	-29.4%	-8.5%	Below	-0.01	0.7×	-44.5%
Lam Research	LRCX	-0.6%	-21.7%	-27.1%	-11.6%	Below	-0.06	0.9×	-37.9%
Applied Materials	AMAT	-1.4%	-22.3%	-26.8%	-12.2%	Below	-0.01	0.6×	-42.5%

The sector’s 60-session link is -0.01 with the 10-year yield, -0.23 with the dollar and -0.49 with market fear. Those forces do not explain every stock equally.

Does the story survive without the winner?

Every tracked share gets equal weight, then the best performer is removed.

All tracked shares-8.1%

Without QCOM-9.9%

SOXX-10.1%

Without QCOM, the tracked group moved -9.9% over 21 sessions.