Markets Brief

Thursday, July 23, 2026

Last updated 3:06 PM PT

Market Value

$200,335.83

Cost $239,993.08

Day's Gain

$2,689.16

1.36%

Total Gain

-$39,657.25

-16.52%

AI semis & memory

MU

Day's Gain $
$1,843.80
Day's Gain %
3.20%
Total Gain $
-$3,830.90
Total Gain %
-6.06%

Qty # 60 · Last Price $990.21 · Value $59,412.60 · Total Cost $63,243.50

Memory is the AI semi battleground, and MU’s BofA confidence headline plus hyperscaler earnings pressure keeps the HBM demand story front and center. Stay long, buy weakness in pieces, and demand margin confirmation because the stock is up today but Marco’s position is still down 6%.

AI buildout — fiber, storage, power

SNDK

Day's Gain $
$110.60
Day's Gain %
0.69%
Total Gain $
-$6,671.70
Total Gain %
-29.29%

Qty # 10 · Last Price $1,610.33 · Value $16,103.30 · Total Cost $22,775.00

Storage is an AI-infrastructure lane, but that headline is noise and gives SNDK no fresh fundamental catalyst. At $1,610 with the position still down 29%, I like buying weakness in pieces only if NAND pricing, enterprise SSD demand, and data-center power budgets keep tightening.

Other holdings

AMAT

Day's Gain $
$444.00
Day's Gain %
1.60%
Total Gain $
-$3,693.90
Total Gain %
-11.60%

Qty # 50 · Last Price $562.80 · Value $28,140.00 · Total Cost $31,833.90

Semicap equipment is still a high-quality AI capex derivative, but with no fresh headlines and the position down 11.6%, I would not chase today’s +1.6% bounce. I’d own it, don’t trade it, and add only on weakness because margins, foundry spend, and memory capex matter more than one quiet tape day.

AMD

Day's Gain $
-$252.80
Day's Gain %
-2.29%
Total Gain $
-$747.80
Total Gain %
-6.48%

Qty # 20 · Last Price $539.69 · Value $10,793.80 · Total Cost $11,541.60

Data center silicon is the read, and AMD’s Zen 6 EPYC Venice plus Kria says compute is spreading from servers into physical AI while the market sells the tape. At -6.48% on the position, I like buying weakness in pieces; the real test is 2nm ramp execution, memory bandwidth, CoWoS capacity, and turning monster core counts into margin-rich hyperscaler wins.

BE

Day's Gain $
-$27.60
Day's Gain %
-0.42%
Total Gain $
-$3,441.00
Total Gain %
-34.55%

Qty # 30 · Last Price $217.30 · Value $6,519.00 · Total Cost $9,960.00

Clean energy/fuel cells: the tape is giving you noise, because these headlines are not Bloom Energy news and they do nothing for the thesis. With the position down 34.55%, keep it small, stop averaging blindly, and wait for real proof in margins, backlog quality, project financing, and grid-power demand.

GEV

Day's Gain $
$1,154.00
Day's Gain %
4.69%
Total Gain $
-$1,450.75
Total Gain %
-5.33%

Qty # 25 · Last Price $1,031.19 · Value $25,779.75 · Total Cost $27,230.50

Power equipment is the right sector, AI-driven orders are real, but GEV’s Wind drag and core profit miss say the margin story is not clean enough to chase a 4.7% pop. Stay long, buy weakness in pieces, and add aggressively only when Wind stops eating the gas and grid upside.

INTC

Day's Gain $
-$358.50
Day's Gain %
-2.33%
Total Gain $
-$4,828.99
Total Gain %
-24.31%

Qty # 150 · Last Price $100.23 · Value $15,034.50 · Total Cost $19,863.49

Semis are bouncing, and Intel’s fastest revenue growth in almost 15 years says the AI bid is finally touching the laggards. I’d buy weakness only in pieces until margins and foundry utilization prove the capex story, because this is still a turnaround holding, not an own-it-don’t-trade-it core.

MRVL

Day's Gain $
-$150.30
Day's Gain %
-0.79%
Total Gain $
-$8,949.20
Total Gain %
-32.21%

Qty # 90 · Last Price $209.32 · Value $18,838.80 · Total Cost $27,788.00

Semis: MRVL is an AI infrastructure bet, but down 32% with no fresh catalyst means margins, data-center growth, and customer concentration have to do the talking. Stay long if the thesis is intact, buy weakness in pieces, and make management prove the quarter.

SPCX

Day's Gain $
$5.96
Day's Gain %
2.59%
Total Gain $
-$183.33
Total Gain %
-43.67%

Qty # 2 · Last Price $118.24 · Value $236.48 · Total Cost $419.81

Space is a capital-hungry, catalyst-driven tape, and SPCX is trading on Starship execution, launch cadence, and whether capex turns into durable margin power. I would not chase a 2.6% green day with the position still down 44%; buy weakness in pieces only if you can stomach the launch-risk volatility.

TSM

Day's Gain $
-$112.60
Day's Gain %
-1.34%
Total Gain $
-$1,216.40
Total Gain %
-12.77%

Qty # 20 · Last Price $415.58 · Value $8,311.60 · Total Cost $9,528.00

Semis first: TSM is still the AI toll road, and one PNC stake trim does not matter more than leading-edge demand, CoWoS capacity, and margin power. Lin Shyue-Shyh buying 2,000 shares in the open market is the cleaner signal; I’d stay long, add only in pieces, and treat this as own it, don’t trade it.

WDC

Day's Gain $
$32.60
Day's Gain %
0.29%
Total Gain $
-$4,643.28
Total Gain %
-29.37%

Qty # 20 · Last Price $558.30 · Value $11,166.00 · Total Cost $15,809.28

Storage is the trade, and that SanDisk headline says AI demand has turned memory scarcity into real pricing power, not a sleepy hardware story. WDC is still a broken position at -29%, so I’d keep it small, buy weakness only in pieces, and demand margin proof before pounding the table.

Watchlist

AMD

ADVANCED MICRO DEVICES INC COM

$539.69 -$12.64 (-2.29%)

AI semis remain the main event, and AMD’s partnership headline keeps it in the Nvidia-alternative lane, but the watch item is whether these announcements convert into accelerator revenue, software pull-through, and gross-margin lift. Down 2.29% does not break the setup; I like this name here, but the proof has to come in AI customer wins and supply-chain access to HBM, CoWoS, and power.

BE

BLOOM ENERGY CORP COM CL A

$217.30 -$0.92 (-0.42%)

Clean energy has a long-bond problem: a 30-year above 5% raises the bar for capital-intensive growth names like Bloom, so margins, backlog quality, and project financing discipline matter more than the tape. Watch it, but the trade is on only if orders and service margins can outrun higher financing costs.

CBRS

CEREBRAS SYSTEMS INC COM CL A

$220.00 $10.20 (4.86%)

The AI systems trade is on for CBRS because the AMD partnership gives Cerebras a bigger platform and a cleaner path into enterprise AI capex. Watch booked revenue, margins, and supply pinch points like HBM, CoWoS, optical, and grid power; I like the setup, but buy weakness, not the spike.

GLW

CORNING INC COM

$156.06 $2.00 (1.30%)

Glass and optical stay in favor if AI data-center capex keeps pulling fiber, but no fresh headline means this is sector beta, not a new thesis. Watch margins, optical demand, and any supply-chain squeeze; I like the setup, but the trade is on only if earnings confirm it.

GOOGL

ALPHABET INC CAP STK CL A

$317.69 -$24.40 (-7.13%)

Internet is repricing megacap AI capex, and Alphabet is getting hit because the market wants proof that spending turns into margin and cloud share, not just bigger GPU bills. For a watchlist name, I’d wait for cloud growth, ad durability, and capex discipline to stabilize the setup; buy weakness in pieces only when the AI spend story starts paying its own freight.

LITE

LUMENTUM HLDGS INC COM

$833.64 $3.94 (0.47%)

No fresh headlines, so today’s move is noise; in optical, the trade is AI data-center capex, margins, and customer concentration. Watch bookings and pricing power here; without fresh demand proof, I’d wait for weakness rather than chase.

LRCX

LAM RESEARCH CORP COM NEW

$319.78 $0.49 (0.15%)

That uranium headline is Laramide, not Lam Research, so it does not change the LRCX setup. For semicap equipment, watch July 29 earnings, memory WFE, China exposure, HBM pull-through, and gross margins; I like this name on weakness, not a chase at $320.

NVDA

NVIDIA CORPORATION COM

$208.76 -$3.30 (-1.56%)

AI semis remain the tell, and Alphabet earnings are the next capex check for Nvidia: cloud spend, HBM supply, CoWoS capacity, and data-center margins matter more than the -1.56% tape. At $208.76 after a buy-trigger headline, the setup is still constructive, but I like this name on weakness, not after a chart chase.

PLTR

PALANTIR TECHNOLOGIES INC CL A

$123.37 -$1.20 (-0.96%)

AI software is moving from hype into professional-services workflows, and the Kirkland-Palantir read-through says enterprise buyers still want secure data plumbing with real use cases. PLTR at $123.37 on a soft day does not change the setup: watch deal velocity, commercial margins, and whether AIP demand broadens beyond government.

PWR

QUANTA SVCS INC COM

$653.80 $10.66 (1.66%)

Power infrastructure is the story: grid hardening, data-center load, transmission buildout, and utility capex keep PWR in the sweet spot. No fresh headlines and a 1.66% pop means the setup did not change; I like the name, but I am watching backlog, margins, and project-cost pressure before chasing $653.80.

Q

QNITY ELECTRONICS INC COMMON STOCK

$138.66 -$0.08 (-0.06%)

No fresh headlines, no catalyst, so the trade is not on yet. Watch the sector tape and the next margin read; I like discipline here, not chasing a flat move.

RDDT

REDDIT INC CL A

$168.78 -$1.60 (-0.94%)

Social data licensing is the story here: losing Google AI access would punch the high-margin revenue narrative and force investors to reprice the moat. Watch management’s tone on AI deals and platform control; I like the asset, but the trade is on only if partners keep paying and the community stays engaged.