Markets Brief

Tuesday, June 30, 2026

Last updated 3:07 PM PT

Market Value

$231,161.32

Cost $223,883.48

Day's Gain

$7,742.19

3.47%

Total Gain

$7,277.84

3.25%

AI semis & memory

MU

Day's Gain $
$540.60
Day's Gain %
0.79%
Total Gain $
$6,013.90
Total Gain %
9.51%

Qty # 60 · Last Price $1,154.29 · Value $69,257.40 · Total Cost $63,243.50

AI memory is the trade: Micron has HBM demand, pricing power, and data-center capex pulling margins higher, while SK Hynix and Samsung are the real supply threat coming for the profit pool. Up 9.51% in the position, I'd trim a slice into this strength and stay long the core, because this is own it, don't trade it until memory supply breaks.

AI buildout — fiber, storage, power

SNDK

Day's Gain $
$2,233.40
Day's Gain %
10.89%
Total Gain $
-$37.70
Total Gain %
-0.17%

Qty # 10 · Last Price $2,273.73 · Value $22,737.30 · Total Cost $22,775.00

Storage is the AI buildout bottleneck people keep underestimating, and Bernstein’s Mark Newman raising his target says the Street is finally paying for NAND leverage, enterprise SSD demand, and margin recovery. After a 10.89% rip I would not chase it all at once, but I like SNDK on pullbacks because the trade is on as AI capex needs more storage alongside fiber and power, booyah.

Other holdings

AMAT

Day's Gain $
$990.80
Day's Gain %
2.82%
Total Gain $
$4,316.10
Total Gain %
13.56%

Qty # 50 · Last Price $723.00 · Value $36,150.00 · Total Cost $31,833.90

Semicap is working, but with no fresh AMAT-specific news this is a sector bid, not a new fundamental unlock. I’d stay long and buy weakness in pieces because margins, China exposure, and AI-driven tool demand still matter more than one hot tape.

GEV

Day's Gain $
$1,491.35
Day's Gain %
5.35%
Total Gain $
$2,141.00
Total Gain %
7.86%

Qty # 25 · Last Price $1,174.86 · Value $29,371.50 · Total Cost $27,230.50

Power and grid is still the trade, and GEV is acting like the market wants turbines, electrification, and scarcity value more than fresh headlines. I’d stay long but trim only if position sizing is getting loud, because this move is fundamentals plus momentum, not a news pop.

INTC

Day's Gain $
$1,186.50
Day's Gain %
6.01%
Total Gain $
$1,081.01
Total Gain %
5.44%

Qty # 150 · Last Price $139.63 · Value $20,944.50 · Total Cost $19,863.49

Semi tape is hot, but Intel is still a margin squeeze story with foundry losses, heavy capex, and execution risk doing the talking. I’d trim strength here, keep the core small, and make management prove gross margin recovery before adding.

MRVL

Day's Gain $
$1,812.60
Day's Gain %
7.25%
Total Gain $
-$977.90
Total Gain %
-3.52%

Qty # 90 · Last Price $297.89 · Value $26,810.10 · Total Cost $27,788.00

No fresh headlines means this is sector beta, not a new MRVL-specific catalyst, and a +7.25% day is the market paying up for AI networking, custom silicon, optical, and data-center capex torque. I’d use strength to right-size an “Other holdings” name unless you want the full AI infrastructure basket, because margins and customer timing still have to prove the move.

SPCX

Day's Gain $
$13.34
Day's Gain %
4.06%
Total Gain $
-$78.09
Total Gain %
-18.60%

Qty # 2 · Last Price $170.86 · Value $341.72 · Total Cost $419.81

Space is catching a bid, and Russell 1000 inclusion gives SPCX a real buyer-base catalyst, but NASA-contract dependence keeps this a government-revenue story first. I’d buy weakness in pieces, not chase a 4% pop, because Starlink scale and launch margin are the real prizes here.

WDC

Day's Gain $
-$526.40
Day's Gain %
-2.02%
Total Gain $
-$5,180.48
Total Gain %
-16.86%

Qty # 40 · Last Price $638.72 · Value $25,548.80 · Total Cost $30,729.28

Storage is taking a risk-off hit with no fresh catalyst, so this is a margins-and-discipline story, not a headline story. I would not add until NAND/HDD pricing and hyperscale demand prove it, but I would not puke it down 16.86% either.

Watchlist

CBRS

CEREBRAS SYSTEMS INC COM CL A

$221.00 $4.84 (2.24%)

No fresh headlines means this +2.24% is tape action, not a fundamental reset; watch the sector read-through before chasing CBRS. I want margin leverage, capex discipline, and demand proof before saying the trade is on.

GLW

CORNING INC COM

$255.43 -$0.26 (-0.10%)

Materials and optical infrastructure are the setup here, and with no fresh headline the tape is telling you nothing new at -0.10%. Watch whether Corning can turn AI/data-center optical demand and display glass pricing into margin expansion; I like it only on proof, not noise.

IRDM

IRIDIUM COMMUNICATIONS INC COM

$54.85 $0.26 (0.48%)

Space infrastructure is in play, and this Rocket Lab-Iridium headline puts the focus on constellation services, customer stickiness, and whether IRDM gets valued like scarce infrastructure instead of sleepy telecom. At $54.85 with only a modest move, watch deal terms, regulatory risk, and capex discipline; the trade is on only if margins survive the strategic premium.

LITE

LUMENTUM HLDGS INC COM

$858.06 $6.66 (0.78%)

No fresh headlines means this +0.78% move is noise, not a new setup. For LITE, watch AI optical demand, margin recovery, and customer concentration; I like the sector, but I’d wait for real order evidence before chasing.

NVDA

NVIDIA CORPORATION COM

$200.09 $5.12 (2.63%)

AI semis are in a show-me phase: Nvidia still owns the accelerator stack, but margins, CoWoS/HBM supply, and hyperscaler capex cadence decide whether this bounce has teeth. A 2.63% pop to $200.09 does not change the setup; watch data-center orders and networking attach rates, because until those reaccelerate this is a watchlist name, not a chase.

PLTR

PALANTIR TECHNOLOGIES INC CL A

$116.67 $0.97 (0.84%)

PLTR is trading like the AI software scarcity name after the Nvidia deal headline, and the sector tape says the trade is on. What matters now is conversion: real enterprise revenue, durable margins, and evidence Nvidia opens bigger customer doors, not just another AI press release.

PWR

QUANTA SVCS INC COM

$720.04 $5.59 (0.78%)

Grid power is the story: data centers, transmission rebuilds, and utility hardening keep PWR in the right sector. No fresh headlines means this green tape is sector appetite, so watch margins, backlog quality, and whether electrification capex keeps converting into earnings.

Q

QNITY ELECTRONICS INC COMMON STOCK

$163.31 $5.08 (3.21%)

Sector first: no fresh headlines means this +3.21% move is multiple expansion, not a thesis upgrade. For a watchlist name, I like waiting for a real fundamental catalyst or a pullback; chasing a no-news pop at $163.31 is how you turn a good setup into a bad entry.

RDDT

REDDIT INC CL A

$173.58 -$0.81 (-0.46%)

RDDT is an ad-platform story now, and this campaign says management is pushing the one asset Meta and TikTok cannot copy: messy, intent-rich communities. Watch ad pricing, brand-safety comfort, and margin leverage; a red tape day at $173.58 does not change the setup because advertisers want intent-rich niches, not polished fluff.

SIMO

SILICON MOTION TECHNOLOGY CORP SPONSORED ADR

$333.33 $1.39 (0.42%)

This is sector heat, not a SIMO catalyst: Stathera’s raise says private capital still pays up for chip bottleneck IP, while SIMO lives in NAND controllers. Watch gross margins, controller pricing, and design wins; if storage demand firms, the trade is on.

TSM

TAIWAN SEMICONDUCTOR MANUFACT SPONSORED ADS

$477.57 $22.47 (4.94%)

Semis are ripping and TSM is the toll road for AI compute; watch CoWoS capacity, HBM supply, gross margins, and customer concentration. At $477 after a near-5% pop, do not chase the heat blindly, but this remains an elite foundry watchlist name where the trade is on if capex demand keeps accelerating.