Markets Brief

Wednesday, September 16, 2026

Last updated 3:02 PM PT

Market Value

$62,490.40

Cost $61,395.15

Day's Gain

-$31.08

-0.05%

Total Gain

$1,095.25

1.78%

AI semis & memory

MU

Day's Gain $
-$26.25
Day's Gain %
-0.11%
Total Gain $
-$471.85
Total Gain %
-2.00%

Qty # 25 · Last Price $926.55 · Value $23,163.75 · Total Cost $23,635.60

Memory is the AI supply-chain pinch point, and Micron’s HBM pricing power matters more than a broad semiconductor selloff. The position is down just 2%, so stay long and buy weakness in pieces—own it, don’t trade it.

AI buildout — fiber, storage, power

SNDK

Day's Gain $
-$54.62
Day's Gain %
-0.71%
Total Gain $
-$957.95
Total Gain %
-11.19%

Qty # 5 · Last Price $1,519.97 · Value $7,599.85 · Total Cost $8,557.80

AI storage is a core buildout bottleneck, but SNDK’s plunge says NAND pricing, margins, and capex discipline now matter more than split chatter. Stay long and buy weakness only in pieces—own it, don’t trade it.

Other holdings

SKHY

Day's Gain $
$4.80
Day's Gain %
0.02%
Total Gain $
$1,731.65
Total Gain %
8.99%

Qty # 120 · Last Price $174.87 · Value $20,984.40 · Total Cost $19,252.75

Memory-sector tightness is the catalyst, but SKHY’s headline tape is promotional noise without hard evidence on margins, capacity, or customer concentration. The position is up 8.99%, so I’d stay long but refuse to chase—own it, don’t trade it.

Watchlist

AVGO

BROADCOM INC COM

$339.51 $0.24 (0.07%)

AVGO is flat, so the AI infrastructure trade is still on without a momentum chase. Watch custom silicon demand, networking margins, and HBM and CoWoS constraints; I like this name on weakness.

GLW

CORNING INC COM

$144.16 $0.59 (0.41%)

GLW’s move does not change the setup; watch optical-connectivity demand, pricing, and margin expansion in the data-center buildout. I like this name on weakness, but at $144 the trade is patience, not chasing.

GOOGL

ALPHABET INC CAP STK CL A

$342.87 -$2.11 (-0.61%)

Ignore the promotional pop narrative and watch Search margins, Cloud growth, and whether AI capex translates into durable revenue. The recent dip changes nothing—the setup stays attractive, but buy only after the fundamentals confirm the spending payoff.

IRDM

IRIDIUM COMMUNICATIONS INC COM

$47.28 $0.19 (0.40%)

Satellite communications remains a durable connectivity theme, but ARK’s Iridium sale is a sentiment ding—not a fundamental thesis breaker. Watch subscriber growth, service revenue margins, and satellite-network capex; I like this name only if those trends strengthen.

LRCX

LAM RESEARCH CORP COM NEW

$269.23 -$1.64 (-0.61%)

The insider sale at $314.74 is noise; the real tell is whether AI-driven HBM and foundry capex keep etch and deposition demand accelerating. At $269.23, I like this name on the watchlist, but wait for stronger memory-spending confirmation before declaring the trade is on.

PLTR

PALANTIR TECHNOLOGIES INC CL A

$174.34 $1.78 (1.03%)

The headline adds nothing—the setup still hinges on AI platform growth, commercial customer expansion, and operating margins justifying a sky-high valuation. I like the company, but at $174 the stock needs flawless execution, so watch for accelerating revenue before chasing.

Q

QNITY ELECTRONICS INC COMMON STOCK

$114.86 $0.27 (0.24%)

Today’s tiny bounce doesn’t change the setup; ignore the hedge-fund clickbait and watch electronics demand, margins, and customer concentration. I like Q only after those fundamentals prove the recent weakness is opportunity, not warning.