Markets Brief

Monday, June 29, 2026

Last updated 3:07 PM PT

Market Value

$223,831.83

Cost $222,388.88

Day's Gain

$10,022.42

4.69%

Total Gain

$1,442.95

0.65%

AI semis & memory

MU

Day's Gain $
$777.00
Day's Gain %
1.14%
Total Gain $
$5,473.30
Total Gain %
8.65%

Qty # 60 · Last Price $1,145.28 · Value $68,716.80 · Total Cost $63,243.50

Memory semis first: MU is an AI pricing story, and those HBM long-term contracts matter because they lock demand while SK Hynix and Samsung try to flood the cycle. Up 8.65% in the position, I’d stay long and own it, don’t trade it, but only add on weakness because share loss, packaging bottlenecks, and customer concentration are the margin risks.

AI buildout — fiber, storage, power

SNDK

Day's Gain $
-$403.20
Day's Gain %
-1.93%
Total Gain $
-$2,271.10
Total Gain %
-9.97%

Qty # 10 · Last Price $2,050.39 · Value $20,503.90 · Total Cost $22,775.00

Storage is the AI toll booth, and SNDK’s run says the market is paying for tight NAND supply, hyperscaler demand, and margin leverage. Down 10% in the position after a monster tape is not a thesis break, but I would buy weakness in pieces and own the cycle while supply stays disciplined.

Other holdings

AMAT

Day's Gain $
$2,034.00
Day's Gain %
10.82%
Total Gain $
$3,325.30
Total Gain %
18.99%

Qty # 30 · Last Price $694.64 · Value $20,839.20 · Total Cost $17,513.90

Semi equipment is ripping without a fresh headline, so this is multiple expansion and AI capex enthusiasm, not a new AMAT-specific catalyst. I like the cycle, but after +10.82% in a day and +18.99% on the position, I’d trim a piece and keep the core for HBM, advanced packaging, and foundry spend.

GEV

Day's Gain $
$860.10
Day's Gain %
5.49%
Total Gain $
$649.65
Total Gain %
4.09%

Qty # 15 · Last Price $1,102.51 · Value $16,537.65 · Total Cost $15,888.00

Power equipment is still the scarce-capacity bull market, and GEV is getting paid for grid power, gas turbines, and electrification margins without needing a fresh headline. At $1102 after a 5.5% pop, own it, don’t trade it; I’d only trim if the position gets oversized and buy weakness in pieces.

INTC

Day's Gain $
$510.00
Day's Gain %
2.65%
Total Gain $
-$105.49
Total Gain %
-0.53%

Qty # 150 · Last Price $131.72 · Value $19,758.00 · Total Cost $19,863.49

Semis are getting a policy bid from quantum chatter, but for INTC the real test is foundry utilization, capex discipline, and gross margin repair. Up 2.65% with the position basically flat, I’d stay long but keep it in the penalty box until customers, not headlines, validate the turnaround.

MRVL

Day's Gain $
$988.20
Day's Gain %
4.12%
Total Gain $
-$2,790.50
Total Gain %
-10.04%

Qty # 90 · Last Price $277.75 · Value $24,997.50 · Total Cost $27,788.00

Semis are catching a bid, but with no fresh MRVL news this is sector beta, not a thesis reset. I’d trim strength until margins and AI networking orders prove the custom-silicon story is back on track.

SPCX

Day's Gain $
$21.92
Day's Gain %
7.15%
Total Gain $
-$91.43
Total Gain %
-21.78%

Qty # 2 · Last Price $164.19 · Value $328.38 · Total Cost $419.81

Space is a scarcity story, but Russell 1000 inclusion is flow, not a thesis; it can squeeze SPCX without fixing capital intensity or Starlink unit economics. At +7% today and still down 22% in the position, I would not chase it; hold the core and buy weakness in pieces, booyah.

WDC

Day's Gain $
$5,234.40
Day's Gain %
11.16%
Total Gain $
-$2,746.78
Total Gain %
-5.00%

Qty # 80 · Last Price $651.88 · Value $52,150.40 · Total Cost $54,897.18

Storage and memory are on fire, but this headline is Sandisk momentum, not a clean WDC fundamental catalyst. With the position still down 5% after an 11% rip, I’d trim into strength unless WDC is showing real margin leverage from pricing, enterprise drives, and AI storage demand.

Watchlist

GLW

CORNING INC COM

$255.69 $34.64 (15.67%)

Optical glass is the tell: a 15% rip with no fresh headline means the trade is on only if AI data-center demand and pricing actually show up in margins. I’d watch the next print for optical growth, display glass stabilization, and capex discipline; no proof, no chase.

GOOGL

ALPHABET INC CAP STK CL A

$353.65 $16.26 (4.82%)

Dow debut is index-flow fuel, not a thesis; for a watchlist name, the key is whether Alphabet turns AI capex into cloud acceleration, search durability, and better margins. The 4.82% pop says the trade is on, but I want proof on Gemini, TPUs, and cloud share before calling this a must-own.

IRDM

IRIDIUM COMMUNICATIONS INC COM

$54.59 $11.07 (25.44%)

Space services is consolidating, and IRDM just became a deal-spread watch, not a clean operating story, with Rocket Lab buying spectrum, subscribers, maritime/government relationships, and a global L-band network. At $54.59 after a 25% rip, I would not chase it; watch the cash-stock collar, RKLB share price, approvals, and whether the market starts pricing a real SpaceX alternative, booyah.

LITE

LUMENTUM HLDGS INC COM

$851.40 $34.42 (4.21%)

Optical is the AI plumbing trade, and a 4% move in LITE without fresh news says buyers are paying up for datacenter demand and margin leverage. Watch hyperscaler order cadence, high-speed optical components, and supply-chain tightness; I like this setup on pullbacks, not after a chase.

NVDA

NVIDIA CORPORATION COM

$194.97 $2.44 (1.27%)

AI infrastructure is still the trade: NVDA at $194.97 and up 1.27% says the market still wants the picks-and-shovels leader, but this headline is second-derivative noise around Nvidia-owned names, not fresh demand proof. Watch HBM, CoWoS, data-center capex, and hyperscaler concentration; I like this name on real pullbacks, but don’t chase a Motley Fool bump.

PLTR

PALANTIR TECHNOLOGIES INC CL A

$115.70 $2.77 (2.45%)

PLTR is a government AI platform story first, and the Nvidia tie-up matters if it turns into funded agency deployments, faster AIP adoption, and durable margin expansion. After a 2.45% pop to $115.70, I like the setup here, but the trade is on only if contract velocity keeps outrunning the multiple.

PWR

QUANTA SVCS INC COM

$714.45 $26.58 (3.86%)

Grid power is the sector, and PWR is a premier way to play utility capex, data-center load, transmission, and storm-hardening demand. With no fresh headline behind a 3.86% rip to $714.45, I want a pullback before starting it; watch backlog quality, margin expansion, labor constraints, and whether grid spend keeps outrunning estimates.

Q

QNITY ELECTRONICS INC COMMON STOCK

$158.23 $0.03 (0.02%)

No fresh headlines means the setup has not changed, so watch the next catalyst and sector tape before chasing a flat move. At $158, I need revenue quality, margin durability, and capex discipline to improve before I call the trade on.

SIMO

SILICON MOTION TECHNOLOGY CORP SPONSORED ADR

$331.94 $26.66 (8.73%)

Semis first: SIMO’s 8% pop is a memory read-through from Micron’s blowout, but this is a controller story, not a clean HBM or CoWoS rocket ship. Watch NAND pricing, mobile and PC storage demand, and customer concentration; I would not chase strength here without margin proof.