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Saturday, October 24, 2026

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Tower Semiconductor Deep Dive

Tower Semiconductor’s low-loss photonics chips halve lasers in 1.6T optical modules, supporting a $680 million annualized photonics run rate and customer wafer prepayments through 2027.

TSEM $19B
CV's Substack 10 clicks

From X

@david_katunaric 1 click

Mikro Kap David on X

Q3 absolutely sucked, and my performance currently stands at 37.8% YTD versus 65.8% at the end of Q2, marking the worst drawdown from a high since I started sharing my buy/sell decisions on Substack. Apparently, the Market Gods decided this is what you get for calling your last portfolio update “Half-time Lead.” …I’m just glad I didn’t use a Buffett quote. That might’ve finished me off. While I barely felt the pre-2024 election volatility, the spring 2025 tariff scare, or the start of the Iran war in 2026, Q3 broke that pattern. $EVC, my largest position, fell more than 40% from its highs and made sure I felt this one. The portfolio’s relative resilience, something I’d come to appreciate, disappeared with it. Of course, I have plenty to say about Entravision, but I’ll save the fundamental developments for later in the article. Q3 was a season of portfolio pruning (wow, I never thought I’d use that phrase). I exited two winners, realized one loss, added to a large position, saw a rare billion-dollar-plus company find its way into my portfolio, and ended the quarter with 6% in cash versus 0% at the end of Q2. I ended Q3 with 11 holdings, with the top three accounting for 53% of capital and the top five for 70%. Portfolio beta also came down from 0.95 at the end of Q2 to 0.80 at quarter end. That is still elevated relative to the portfolio’s historical level, largely because my biggest position carries a beta of 1.68, while every other holding sits below 1. I’ll save the longer performance review for year end, when we can hopefully put what I still consider a satisfactory 2026 into proper perspective. For now, I think it’s better to focus on what actually matters for a concentrated stock picker like me: what has changed fundamentally, how those developments affect the risk/reward, and where my conviction stands today. As usual, at the link below I went through the portfolio from the smallest position to the largest.

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Margin Call

Petrobras’s Morpho-1 well revived hopes that Brazil’s Equatorial Margin can become a major new oil frontier after hydrocarbons were…

PBR $83B
Doomberg 11 clicks

Our Views on CoreWeave

CoreWeave's financial statements point to a business model familiar to the authors after a closer review of the AI infrastructure company.

CRWV $30B
WHAT ARE WE DOING? “Contrarians At The Gate” 12 clicks

Capital Wars

CoreWeave’s $35 billion to $39 billion 2026 spending plan relies on debt as unsecured yields reach 15%, making its GPU cloud expansion a…

CRWV $30B
Net Interest 12 clicks

Putting bear cases to rest

Medpace authorized $1 billion of buybacks through 2028 after Q3 revenue rose 8.5% to $716 million; service revenue grew roughly 12% as…

MEDP $19B
Best Anchor Stocks 15 clicks
CLF · long

Cleveland-cliffs INC

Cleveland-Cliffs is pitched as a long on underappreciated earnings power, with more than 90% return potential over six to nine months.

CLF $7.9B
Value Investors Club

MYR Group q3’26 Earnings Preview

MYR Group’s Q3 2026 preview cites data-center and power transmission demand, with long-term service agreements supporting margin growth and…

MYRG $4.2B
Monte Independent Investment Research 6 clicks

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