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Next edition in 544 min Oct 2, 23:00 - Oct 4, 23:00 Lisbon
Post-Market Alpha
Daily Alpha Post-Market Alpha by Buzzberg Research

What matters now

AI infrastructure is the dominant thread: memory pricing power, optical supply deficits, and record data-center capex are colliding with a hawkish long end, weak breadth, and a diesel-driven inflation impulse. Brazil's election, Iran/Hormuz supply risk, and a $1.58T fiscal transfer proposal round out the agenda.

Main narratives

day change
01

Memory is being repriced as a multi-year shortage, not a cycle, and the sell-side is chasing estimates higher

Goldman now sees DRAM and NAND deficits of 5.9% and 4.6% in 2027 and undersupply persisting into 2029-2030, with Kioxia locking in 50% of 2028 output. Bernstein models memory supplier operating profit reaching $1.3T in CY28 from $800B in CY26, and Morgan Stanley says Nvidia can absorb up to a 91.7% HBM cost increase while holding a 72% gross margin floor. The counterweight: Micron's beat margin narrowed from ~18% to 5%, and 87% gross margins are historically extreme.

MU +1.8% · EWY +0.8%
02

Optical components are the tightest link in AI buildout, with Lumentum guiding a 70% shortfall into 2029-2030

Lumentum's CEO said the company will undership demand by 70% next year, supplying only 30% of what customers request, with balance not expected until 2029-2030 and every laser it can make through 2027 already sold. Coherent's InP expansion is sold out with capacity quadrupling over 24 months, and Barclays raised industry optical port estimates to ~100M in CY26 and 200M in CY27 from 80M/160M. Copper is 'completely dead' at 400G, pushing scaling to co-packaged optics.

LITE +4.0% · COHR +2.5% · AAOI +1.7%
03

AI capex is now a credit story: $3.6T of off-balance-sheet commitments and a $60B Broadcom financing are the new fault line

Hyperscaler off-balance-sheet commitments reached $3.6T as of Sept 30, up $500B in one month, mostly Nvidia-linked, with Zero Hedge expecting a 3x increase after 10-Qs. Broadcom's AI XPV platform is reportedly raising up to $60B for Anthropic chip purchases, split into $42B senior-secured and $18B junior tranches, while Amazon explores an $8B sale-leaseback of installed Grace Blackwell systems. Oracle's $18B 2035 IG bond trades near 95, and Burggraben calls the Stargate structure a textbook 2000 setup.

AVGO +1.4% · ORCL +2.8% · NVDA +1.7%
04

Crude flows have recovered through Hormuz but refined products have not, keeping diesel cracks and refiners supported

Persian Gulf crude exports surpassed 14M bpd last week, up over 210% from the March low and back to ~80% of pre-war levels, while refined fuel shipments including diesel and jet remain at only ~50% of pre-war levels because damaged Gulf refineries have not resumed. The G7's 100M-barrel release and Trump's refusal to ban diesel exports are temporary fixes; US distillate stocks are thin and refining, not crude, is the constraint. UKMTO reports seven vessel strikes near Hormuz since Sept 28, and Iran conditions reopening on seven US conditions.

Themes of the session

?
Z-score shows how far this edition's mention count is above or below the theme's own average across 20 comparable earlier editions. +2.7σ means mentions are 2.7 standard deviations above that average — simply, the theme is being mentioned much more often than usual. It measures attention, not bullishness or expected return. Themes need at least 8 posts; gold begins at +2σ, and σ is hidden when history is too thin.
PCB/Substrates +4.2σ
222800.KQ -2.1% · 007660.KS -2.7% · 356860.KQ -2.4%
+7 more 353200.KS — · 5333.T — · 252990.KQ — · TTMI — · ZTE.CN — · SCE.DE — · 007810.KS —
8 posts 7 voices base 2.0
Metals & Mining +1.9σ
DMX.V +2.3% · MP +2.2% · HBM —
+9 more AGI — · HL — · SCCO — · FCX — · 5706.T — · 5016.T — · B — · BHP — · TTZ.V —
12 posts 10 voices base 5.8
Technology +1.4σ
AI-SECTOR —
8 posts 7 voices base 2.8
Streaming +1.1σ
PSKY +0.0% · WBD +0.0% · NFLX -7.2%
+1 more CMCSA —
9 posts 5 voices base 5.0
AI Compute +0.9σ
NVDA +1.7% · AMD +1.7% · CBRS +1.4%
84 posts 46 voices base 62.4
Bonds & Rates +0.6σ
TLT +0.5% · US10Y — · OAT —
+4 more US30Y — · USFR — · LQD — · US20Y —
25 posts 19 voices base 16.9
AI ASIC +0.5σ
AVGO +1.4% · MRVL +4.7% · ALAB +3.5%
+9 more SMTC — · QCOM — · STM — · MCHP — · MX — · 2454.TW — · 3661.TW — · ARM — · AMBA —
34 posts 19 voices base 27.3
Pharma & Biotech +0.5σ
BAYN +0.2% · NKTR +6.2% · NVAX +5.4%
+16 more SLS +14.6% · CNTB — · NVS — · SNY — · AUPH — · ABBV — · RX.V — · 207940.KS — · 068270.KS — · 326030.KS — · 196170.KQ — · GMAB — · CAPR — · IOVA — · RXRX — · MRNA —
20 posts 12 voices base 16.1
Retail & Mobility +0.4σ
GME +0.1% · NKE +1.4% · UBER -1.4%
+7 more 1361.HK — · LEVI — · KITS.TO — · BABA — · PDD — · JD — · GRAB —
23 posts 17 voices base 17.8
Autos & EV +0.4σ
TSLA +3.1% · GM -6.8% · RNO.PA +1.7%
+9 more RACE — · NIO — · RNSDF — · F — · CPRT — · 005380.KS — · 000270.KS — · 012330.KS — · 1211.HK —
23 posts 20 voices base 19.8
Oil & Gas +0.4σ
MPC -1.2% · VLO -0.1% · PSX +0.2%
+19 more CLMT — · DK — · SLB — · BORR — · GTE — · CVX — · APA — · NOG — · NESR — · FANG — · PKN — · ORLEN — · PETR4.SA — · 2222.SR — · PBR — · ODL.OL — · TDW — · TEN — · KLNG —
16 posts 12 voices base 12.5
Construction & Infrastructure +0.4σ
BRM.V +0.3% · DE +0.8% · PWR -1.0%
+9 more KRP — · JMIA — · XYL — · CAT — · 000100.KS — · GLNG — · NMM — · PPIH — · IFA.TO —
10 posts 10 voices base 8.4
Capital Markets +0.3σ
ASST +7.1% · SATA +0.7% · MS +1.4%
+6 more GS — · CME — · MAIN — · GAIN — · PFLT — · BN —
15 posts 7 voices base 11.6
Brokers +0.2σ
HOOD +3.3% · ETOR +1.4% · 005940.KS -1.8%
8 posts 7 voices base 7.2
Positioning Market Radar →

Buying / adding

3 positions · 4 voices

GameStop CEO Ryan Cohen buys 700,000 shares at $24.4061

Cohen made an open-market purchase of 700,000 GME shares at $24.4061 each, roughly $17 million, with Unusual Whales reporting he has bought millions of shares recently. A large CEO open-market buy is a disclosed conviction signal and a valuation marker.

@unusual_whales 263 smart
GameStop, $GME, CEO Ryan Cohen has bought $17 million in stock https://t.co/3Lz6dma4hK
@firstsquawk Alpha #872
GameStop CEO Ryan Cohen reports open-market purchase of 700,000 shares at $24.4061 each
GME
7d before+5.6%
since call +7.2%

Selective / waiting

1 positions · 1 voices

Fading / not buying

3 positions · 3 voices

Chris Whalen sells Schwab and reduces financials

Whalen said he did a significant rebalance, reduced financial exposure, sold his Charles Schwab position, trimmed Annaly to fund energy, and frames long energy / short financials as his stance for the next year or two on consumer credit deterioration.

Julia LaRoche Show
I think that she and I totally agree that gold ought to be at the foundation of our financial system,
NLY
7d before-10.2%
since call -0.6%
XLE
7d before+1.3%
since call +8.0%
XLF
7d before-2.5%
since call +4.3%
YouTube
59 videos · 42h 51m AI infrastructure, memory and optical supply dominate; diesel and refining constraints, Fed governance, and Brazil's election round out the tape. Open the desk →
X
3363 posts X is dominated by the memory supercycle, optical supply deficits, and AI credit structures, with a live disagreement on whether AI capex is earnings-driven or a financing bubble. Open the desk →
Reddit
980 threads Reddit is split between AI-infrastructure conviction and valuation caution, with GME warrant mechanics, memory pricing, and a broad set of single-name value and biotech theses. Open the desk →
Substack
6 letters Substack coverage was mostly public previews; only a performance disclosure and a diesel-themed teaser cleared the bar, with no falsifiable market claims exposed. Open the desk →