Markets Brief

Friday, September 4, 2026

Last updated 3:02 PM PT

Market Value

$70,661.40

Cost $66,016.63

Day's Gain

$3,720.35

5.56%

Total Gain

$4,644.77

7.04%

AI semis & memory

MU

Day's Gain $
$1,168.60
Day's Gain %
6.10%
Total Gain $
$1,765.85
Total Gain %
9.51%

Qty # 20 · Last Price $1,016.59 · Value $20,331.80 · Total Cost $18,565.95

Memory is the throttle for AI semis, and MU ripping on a breakout note tells me the trade is on but the move needs real HBM pricing and cycle discipline to keep working. Stay long, do not chase a 6% pop all at once; buy weakness in pieces because this is still a boom-bust name trying to prove it can be more than a market ride.

NVDA

Day's Gain $
$38.20
Day's Gain %
0.84%
Total Gain $
$70.02
Total Gain %
1.54%

Qty # 20 · Last Price $230.36 · Value $4,607.20 · Total Cost $4,537.18

AI semis are still the trade, and NVDA has the cleaner setup than AMD because the market is paying for real platform leverage, not just a catch-up story. At $230, up only 1.54% on the position, I stay long and buy weakness in pieces, because the key remains HBM, CoWoS, networking, and data-center margins.

AI buildout — fiber, storage, power

SNDK

Day's Gain $
$1,850.10
Day's Gain %
11.90%
Total Gain $
$182.25
Total Gain %
1.06%

Qty # 10 · Last Price $1,740.00 · Value $17,400.00 · Total Cost $17,217.75

Storage is in the AI toll-road lane, and SNDK still screens cheap on forward earnings even after this rip. I’d stay long but not chase an 11.9% day; buy weakness in pieces because the thesis is capacity, margins, and AI data-center demand, not one hot print.

Other holdings

SKHY

Day's Gain $
$1,332.00
Day's Gain %
8.14%
Total Gain $
$1,953.25
Total Gain %
12.40%

Qty # 100 · Last Price $177.00 · Value $17,700.00 · Total Cost $15,746.75

Semis first: SKHY is up hard because HBM demand, AI memory pricing, and Japan capacity tell you the cycle still has legs, and EPS power into 2027 supports the move. I like the name, but after an 8% day and a 12% position gain, I’d trim a little strength and buy weakness in pieces because memory is cyclical even when the AI setup is real.

TSLA

Day's Gain $
-$668.55
Day's Gain %
-5.92%
Total Gain $
$673.40
Total Gain %
6.77%

Qty # 30 · Last Price $354.08 · Value $10,622.40 · Total Cost $9,949.00

EV sector is getting punished today, and TSLA still has the cleanest revenue acceleration in this set with Q2 sales up 25.52%, but the China recall and Cybercab debate keep the multiple under pressure. I’d stay long but trim strength, because this is no longer a story stock free pass until autonomy, margins, and China execution prove out again.

Watchlist

AVGO

BROADCOM INC COM

$357.89 $0.73 (0.21%)

AVGO is an AI infrastructure tollbooth, and the earnings move only matters if custom silicon, networking, and VMware margins keep powering through. Watch CoWoS/HBM constraints and hyperscaler capex tone; if those stay firm, I like this name on weakness, not a chase after the print.

CBRS

CEREBRAS SYSTEMS INC COM CL A

$210.05 $19.61 (10.30%)

AI infrastructure is where the trade is on, and Cerebras is ripping because Europe wants sovereign compute and investors want anything that can relieve the Nvidia bottleneck. Watch customer concentration, power access, and whether they can turn big infrastructure wins into durable margins; after a 10% pop, I like it better on weakness than chasing it.

GLW

CORNING INC COM

$154.30 $8.30 (5.68%)

Optical is the sector tell here: GLW lives on fiber demand, AI data-center buildouts, and carrier capex, so watch whether the move is backed by orders, not insider selling noise. Big up day changes the chase setup, not the story: I’d wait for a pullback unless management is showing margin leverage and real optical acceleration.

GOOGL

ALPHABET INC CAP STK CL A

$338.46 -$3.80 (-1.11%)

GOOGL is still an AI infrastructure and ad-scale story, and the services ecosystem around its platforms tells me the enterprise monetization flywheel is getting real. Watch cloud margins, Gemini adoption, and capex discipline; I like this name on weakness, not after every pop.

LITE

LUMENTUM HLDGS INC COM

$881.25 $33.88 (4.00%)

AI optics is still the right neighborhood, but this headline says the group is funding-sensitive and crowded, so watch CoWoS/HBM-adjacent demand signals and customer concentration before chasing a +4% move. I like the sector, but for LITE the trade is on only if margins expand with AI optical volumes, not just because the tape is hot.

LRCX

LAM RESEARCH CORP COM NEW

$307.65 $14.99 (5.12%)

Semi cap equipment is acting right, and LRCX up 5% says the market still wants AI wafer-fab exposure, not another software story. Watch the insider sale as supply, not a thesis breaker; the real tell is memory capex, China restrictions, and whether foundry customers keep spending through the cycle.

Q

QNITY ELECTRONICS INC COMMON STOCK

$120.47 $2.00 (1.69%)

Electronics materials are still an AI supply-chain watch, but this headline is noise: a 272-share director award, not an open-market buy, and the larger 22,336-share holding is the real signal. At $120.47 after a 1.69% pop, I’d watch margins, HBM/advanced packaging exposure, and customer concentration before saying the trade is on.

SIMO

SILICON MOTION TECHNOLOGY CORP SPONSORED ADR

$256.21 $20.51 (8.70%)

SIMO is a semiconductor storage-controller play, and an 8.7% pop on a generic buy-now headline tells me sentiment is running ahead of hard evidence. Watch NAND demand, gross margins, and China/customer exposure; I like the setup only if fundamentals confirm, otherwise chase nothing after this kind of move.