Markets Brief

Monday, July 20, 2026

Last updated 3:06 PM PT

Market Value

$185,222.50

Cost $239,993.08

Day's Gain

$2,447.32

1.34%

Total Gain

-$54,770.58

-22.82%

AI semis & memory

MU

Day's Gain $
$990.60
Day's Gain %
1.94%
Total Gain $
-$11,315.90
Total Gain %
-17.89%

Qty # 60 · Last Price $865.46 · Value $51,927.60 · Total Cost $63,243.50

AI semis lead, memory follows: MU is the HBM torque play, and a +1.94% day against a -17.89% position says the trade is waking up, not fixed. I like this name on weakness in pieces, but keep size disciplined until margins prove the AI memory cycle is flowing through.

AI buildout — fiber, storage, power

SNDK

Day's Gain $
$361.30
Day's Gain %
2.67%
Total Gain $
-$8,865.50
Total Gain %
-38.93%

Qty # 10 · Last Price $1,390.95 · Value $13,909.50 · Total Cost $22,775.00

Data-center infrastructure is catching a bid, and SNDK belongs in that trade because AI needs storage as badly as it needs fiber and power. Position is still down hard, so I’d buy weakness in pieces, not chase a peace-hope rally.

Other holdings

AMAT

Day's Gain $
-$198.00
Day's Gain %
-0.75%
Total Gain $
-$5,548.90
Total Gain %
-17.43%

Qty # 50 · Last Price $525.70 · Value $26,285.00 · Total Cost $31,833.90

Semicap equipment has no fresh catalyst, and AMAT needs foundry capex, HBM packaging demand, and service margins to do the heavy lifting. Down 17% in the position, I’d hold the core and add only on real weakness: quality name, tough tape, no need to force it.

AMD

Day's Gain $
$156.20
Day's Gain %
1.58%
Total Gain $
-$1,470.20
Total Gain %
-12.74%

Qty # 20 · Last Price $503.57 · Value $10,071.40 · Total Cost $11,541.60

AI silicon is still the whole ballgame: Alphabet pushing Gemini into its own chip tightens the hyperscaler threat to AMD, but KNOD shows AMD GPUs getting deeper into Linux networking where latency, offload, and data-center plumbing matter. At down 12.74% on the position, I would stay long and buy weakness in pieces because the trade is on if AMD keeps turning software support into real accelerator share against Nvidia and custom silicon.

BE

Day's Gain $
-$537.00
Day's Gain %
-8.33%
Total Gain $
-$4,048.20
Total Gain %
-40.64%

Qty # 30 · Last Price $197.06 · Value $5,911.80 · Total Cost $9,960.00

Energy-tech/spec growth is getting punished, and this IPO headline does nothing for Bloom’s margins, backlog, or grid-power thesis. At -40% in the position, I would not chase a bounce; own it as a long-cycle power call or trim strength because BE needs orders, margin proof, and cash discipline, not IPO-market noise.

GEV

Day's Gain $
$533.50
Day's Gain %
2.02%
Total Gain $
-$251.00
Total Gain %
-0.92%

Qty # 25 · Last Price $1,079.18 · Value $26,979.50 · Total Cost $27,230.50

Power infrastructure is where the AI capex bill shows up next, and GEV is the clean way to own turbines, electrification, and service margins while semis shake out. At +2% today with the position still slightly red, I would not chase; buy weakness in pieces because the trade is on.

INTC

Day's Gain $
$303.00
Day's Gain %
2.13%
Total Gain $
-$5,304.49
Total Gain %
-26.70%

Qty # 150 · Last Price $97.06 · Value $14,559.00 · Total Cost $19,863.49

Chips are working, but Intel is not a clean AI winner yet: valuation has sprinted ahead of margins, foundry proof, and the capex payback. Into earnings, I’d sell some strength and keep only a smaller core; the trade is on for semis, but INTC has to earn its way back.

MRVL

Day's Gain $
$563.40
Day's Gain %
3.32%
Total Gain $
-$10,243.40
Total Gain %
-36.86%

Qty # 90 · Last Price $194.94 · Value $17,544.60 · Total Cost $27,788.00

Semis are bid today, but MRVL needs the custom AI silicon ramp and optical DSP cycle to show up in margins, not just revenue. At down 36.86%, I’d keep a core, avoid chasing this +3.32% move, and buy weakness in pieces because the AI infrastructure trade is still on.

SPCX

Day's Gain $
-$8.28
Day's Gain %
-3.34%
Total Gain $
-$180.11
Total Gain %
-42.90%

Qty # 2 · Last Price $119.85 · Value $239.70 · Total Cost $419.81

Space and defense first: SpaceX is getting hit like a broken story, but launch cadence, Starlink cash flow, and Pentagon demand keep the fundamental engine intact. At down 43% in the position, I would not chase a bounce; buy weakness in pieces around real DoD contract proof and own it, don’t trade it.

TSM

Day's Gain $
$78.60
Day's Gain %
0.99%
Total Gain $
-$1,482.00
Total Gain %
-15.55%

Qty # 20 · Last Price $402.30 · Value $8,046.00 · Total Cost $9,528.00

Semis first: TSM is the AI fab tollbooth, and the 1% upgrade pop is noise next to CoWoS capacity, leading-edge margins, and capex discipline. At $402.30 with the position still down 15.55%, I’d stay long and buy weakness in pieces; own it, don’t trade it.

WDC

Day's Gain $
$204.00
Day's Gain %
2.14%
Total Gain $
-$6,060.88
Total Gain %
-38.34%

Qty # 20 · Last Price $487.42 · Value $9,748.40 · Total Cost $15,809.28

Storage is green today, but no fresh headline means this is tape strength, not a thesis reset. I’d trim into the pop and keep only a starter until NAND and nearline HDD pricing show real margin follow-through.

Watchlist

CBRS

CEREBRAS SYSTEMS INC COM CL A

$176.88 $4.02 (2.33%)

AI infrastructure is the sector, and CBRS at $176.88 is a wafer-scale inference bet where the watch items are customer wins, gross margins, and whether power and data-center supply can keep up. No fresh headlines means no victory lap; I like the setup only if growth comes with margin leverage, otherwise NVIDIA and AMD keep the oxygen.

GLW

CORNING INC COM

$153.10 -$1.51 (-0.98%)

Materials and optical components are the story: GLW needs AI data-center fiber demand and display-glass pricing to keep carrying the multiple. No fresh news and a 1% dip means no urgency; watch margins, capex pull-through, and optical order trends before declaring the trade is on.

GOOGL

ALPHABET INC CAP STK CL A

$351.99 $5.22 (1.51%)

Mega-cap AI platforms are winning when they can cut inference cost, and a Gemini-specific chip would hit the margin pressure everyone fears from AI capex. For a watchlist name up 1.5%, the tell is whether this becomes real silicon at scale; if Google lowers AI compute cost while protecting search cash flow, I like this setup on weakness.

IRDM

IRIDIUM COMMUNICATIONS INC COM

$46.41 -$0.27 (-0.58%)

Aerospace navigation is getting another AI-and-quantum bid, and that keeps resilient positioning and satellite connectivity on the radar even though this is not an IRDM order. For IRDM, watch government mobility and IoT bookings; I like the theme, but the trade is on only when revenue proves it.

LITE

LUMENTUM HLDGS INC COM

$765.55 $32.73 (4.47%)

Optical is the hotter pocket in semis, and the Barclays upgrade puts Lumentum in the AI networking lane, but a 4.47% jump raises the earnings bar fast. Watch datacenter optical orders, gross margin recovery, and telecom inventory burn; if those line up, the trade is on, and I like this name on weakness.

LRCX

LAM RESEARCH CORP COM NEW

$306.76 -$6.54 (-2.09%)

Semicap equipment is still a capex, HBM, and CoWoS story, and that FOX Sports headline is irrelevant noise, not Lam Research news. Down 2% at $306.76 does not change the setup: watch memory WFE orders, China restrictions, and gross margin leverage before chasing.

NVDA

NVIDIA CORPORATION COM

$203.28 $0.47 (0.23%)

AI infrastructure still owns the tape, but a Finbold machine-learning target is not a thesis; watch hyperscaler capex, Blackwell supply, HBM, CoWoS, and grid power. At $203.28 and barely green, I like this name on weakness because the fundamentals matter more than the algo headline.

PLTR

PALANTIR TECHNOLOGIES INC CL A

$134.85 $2.47 (1.87%)

PLTR is still an enterprise AI execution story, and Karp’s token critique keeps the focus where it belongs: paid workflows, deployment speed, and margins, not lab hype. Stock up again at $134.85, so I’d watch for real customer expansion before chasing; strong setup, high bar.

PWR

QUANTA SVCS INC COM

$632.56 $4.03 (0.64%)

Power infrastructure is the sector, and PWR is levered to the right spending buckets: grid hardening, data-center power, utility capex, and storm rebuild work. No fresh headlines means no new catalyst, so watch backlog conversion and margins; at $632.56 after a modest green day, buy weakness in pieces, don’t chase.

RDDT

REDDIT INC CL A

$181.64 $0.46 (0.25%)

This headline is noise for RDDT; it shows Reddit still sits at the center of consumer complaint discovery, but it does not move the ad, data licensing, or AI search monetization story. Watch engagement durability and pricing power into earnings, because at $181.64 the trade needs margin expansion and real advertiser demand, not a one-off Steam delivery anecdote.

SIMO

SILICON MOTION TECHNOLOGY CORP SPONSORED ADR

$252.61 -$11.71 (-4.43%)

This headline is fund-flow plumbing, not a fundamental catalyst, so the down 4.4% move does not change the setup by itself. For SIMO, the watch is NAND controller demand, gross margins, and customer concentration in the storage semi cycle; I want proof the cycle is turning before saying the trade is on.

TSM

TAIWAN SEMICONDUCTOR MANUFACT SPONSORED ADS

$402.30 $3.93 (0.99%)

Semis are still the tell, and TSM’s green tape against a historic Taiex flush says the AI foundry franchise remains the benchmark. But Duckworth’s 2028 blockade warning keeps the Taiwan risk premium front and center, so watch CoWoS/HBM capacity, Nvidia and Apple concentration, and whether geopolitics starts hitting orders or just the multiple.