StockForum Journal
Notes and analysis on stocks and macro markets.
Updated 2026-10-17
기원전 332년, 지중해 해안의 섬 도시 티레는 7개월을 버텼습니다. 물에서 150피트가 넘는 성벽이 솟아 있었고, 남북으로 항구를 두 개나 품고 있었으며, 80척의 함대가 근해를 지키고 있었습니다. 육지의 군대는 아무리 많아도 바다를 건널 수 없으니, 바다 자체가 해자였죠. 알렉산드로스 대왕은 성벽을 공략하지 않았습니다. 대신 육지에서 섬까지 원호방파제를 쌓아 올려, 바다라는 해자를 통째…
Updated 2026-10-17
More people are using AI than ever, yet the stocks of companies building AI infrastructure are falling. Management's assurance that demand is strong is no longer enough to hold up share prices. According to a Reuters re…
Updated 2026-10-17
Judgments on holdings that ultimately split into a 19% decline and a 140% gain — the record of a sell and a hold that Oakmark made public. On September 30, 2026, Harris | Oakmark, the manager of the Oakmark Internationa…
Updated 2026-10-06
If AI Writes the Code, Are IT Services Firms Finished? — Pzena's View of the Other Face of 'Beaten Down' Stocks AI stocks are flying high these days, yet one industry is strangely going its own way: IT services companie…
Updated 2026-10-03
Bill Ackman's (Pershing Square) Q2 2026 13F is hard to quietly gloss over. According to the report filed on August 14, 2026 (as of June 30, 2026), Ackman made three distinct moves in a single quarter: he bought four new…
Updated 2026-10-03
Two investors are telling very different stories about SpaceX. Ron Baron's fund emphasizes the growth potential of a company it has held for years. David Einhorn's Greenlight, meanwhile, looks at the price set at the IP…
Updated 2026-09-27
On August 14, 2026, Berkshire Hathaway filed its Q2 13F with the SEC. It is the second quarterly report since Warren Buffett handed the CEO seat to Greg Abel, and this time it includes one number that is hard to pass ov…
Updated 2026-09-24
Fundsmith's Q2 2026 13F, filed on August 14, 2026, lays out the changes in Terry Smith's portfolio. The reporting date is June 30, 2026. This quarter, the fund's 13F value grew from $12.83 billion to roughly $13.65 bill…
Updated 2026-09-19
A Look at George Soros's AI Investment Views Through the Soros Fund 13F The 13F filings that institutional investors submit to the U.S. Securities and Exchange Commission (SEC) to report their quarterly stock holdings r…
Updated 2026-08-27
CDW Corporation made its first appearance in Duquesne Family Office's Q2 2026 13F, filed on August 14, 2026, with a reporting date of June 30, 2026. The filing recorded 743,950 shares of common stock valued at $104.6 mi…
Updated 2026-08-24
August 2026: Berkshire Hathaway's latest 13F filing with the SEC confirms a striking change. Having first taken a position in Alphabet (Google's parent company) in the third quarter of 2025, Berkshire grew its stake to…
Updated 2026-07-07
When You Want to Ride the Semiconductor Bull Market But Fear Buying at a Peak The strongest leaders in the domestic stock market are Samsung Electronics and SK Hynix. With AI semiconductors, HBM, the recovery of the mem…
