# Brevarthan Research Fundamental research on energy, industrials and other problem children. Should not be taken as investment advice. Author may have position in stocks discussed. Do your own due diligence. Page: Feed: --- ## [Siltronic: Wafer-time?](https://brevarthanresearch.substack.com/p/siltronic-wafer-time) _2026-08-13 · Michael_ The AI capex splurge and associated memory demand will eventually revive wafer demand ## [Nothing Beats a Jet2....investment?](https://brevarthanresearch.substack.com/p/nothing-beats-a-jet2investment) _2026-07-16 · Michael_ (Images now attached!) Despite the author being a miserly old curmudgeon its hard not to see this well-run airline and holiday company as being as cheap as the flights it sells. ## [Jet2 article](https://brevarthanresearch.substack.com/p/jet2-article) _2026-07-16 · Michael_ Substack server issues mean images did not render in emails properly - article will be republished when resolved ## [Gulf Keystone (GKP.L): Written in the sand?](https://brevarthanresearch.substack.com/p/gulf-keystone-gkpl-written-in-the) _2026-07-06 · Michael_ Worth the paper it isn't written on? Field ownership, unpaid receivables and the mysterious "cost audit". And the reservoir with its own challenges.... ## [UK Shorts - Top 5 disclosed shorts going into June 2026: Ibstock; WHSmith; Wizz Air; Vistry; Greggs](https://brevarthanresearch.substack.com/p/uk-shorts-top-5-disclosed-shorts) _2026-06-02 · Michael_ Energy intensity, housebuilding, air travel and...sausage rolls make up the top 5 disclosed shorts in the UK taken from the FCA website. ## [UK Energy: An Inconvenient Truth](https://brevarthanresearch.substack.com/p/uk-energy-an-inconvenient-truth) _2026-04-14 · Michael_ Just because Ed Miliband wishes it so does not make it true ## [Mota-Engil and its Debt: Muddier Waters](https://brevarthanresearch.substack.com/p/mota-engil-and-its-debt-muddier-waters) _2026-03-20 · Michael_ A follow up on our initial investigation into the Muddy Waters defamation case ## [Carvana, DriveTime, Hindenburg and Gotham City](https://brevarthanresearch.substack.com/p/carvana-drivetime-hindenburg-and) _2026-02-09 · Michael_ Two Things Can Be True: Carvana may be extreme flaky and overvalued, and Gotham's report may have numerous inaccuracies and exaggerated claims. ## [Short Interest - Update: NCC Group & Ashtead Technology](https://brevarthanresearch.substack.com/p/short-interest-update-ncc-group-and) _2026-01-23 · Michael_ NCC receives a low-ball price for Escode and Ashtead Tech fails to deliver the big miss the shorts were looking for. ## [Mota-Engil: Swimming in Muddy Waters](https://brevarthanresearch.substack.com/p/mota-engil-swimming-in-muddy-waters) _2026-01-21 · Michael_ A recent defamation suit in Texas reveals much of the substance behind the short case. ## [Open directory of blogs for agents (Sponsored)](https://crawlproof.com/a/1NcsR4ubwwjm) _2026-01-21 · **Sponsored**_ Submit URLs or OPML; receive feed pages with summaries, plus JSON/OPML/plain text ## [Ibstock PLC (IBST): A house built on bricks?](https://brevarthanresearch.substack.com/p/ibstock-plc-ibst-a-house-built-on) _2026-01-14 · Michael_ A look at the red flags underpinning a disclosed 8.4% short interest ## [Short Interest: Domino's and Greggs (DOM LN; GRG LN)](https://brevarthanresearch.substack.com/p/short-interest-dominos-and-greggs) _2025-11-11 · Michael_ Takeaway Pizza vs a Bacon sarny: more musings on top 10 UK shorts. ## [Short Interest - opening thoughts](https://brevarthanresearch.substack.com/p/short-interest-opening-thoughts) _2025-09-09 · Michael_ The first of a series of posts that takes a quizzical look at UK & European disclosed shorts (today's rattle bag: Ashtead Technology, J Sainsbury, Yellow Cake, NCC Group, Pennon Group) ## [RH - the Universe Intervenes?](https://brevarthanresearch.substack.com/p/rh-the-universe-intervenes) _2025-08-20 · Michael_ I'll have whatever Gary's drinking ## [Tullow Oil](https://brevarthanresearch.substack.com/p/tullow-oil-297) _2025-06-17 · Michael_ Going, going.... Production dwindling, assets for sale, balance sheet teetering... ## [Tullow Oil: Fire Sale](https://brevarthanresearch.substack.com/p/tullow-oil-fire-sale) _2024-12-13 · Michael_ Goodbye Rahul...Paging Houston! ICC and refi risk... ## [UK Short Rattle Bag: VCP, TLW, ADT1, PANR](https://brevarthanresearch.substack.com/p/uk-short-rattle-bag-vcp-tlw-adt1) _2024-10-02 · Michael_ A bundle of scary stocks to mull over as Halloween approaches! ## [Pantheon Resources: Redux! (PANR LN, PANR.L)](https://brevarthanresearch.substack.com/p/pantheon-resources-redux-panr-ln) _2024-02-26 · Michael_ Opaque Transparency: More Data, but More Confusion ## [Tullow Oil (TLW LN; TLW.L)](https://brevarthanresearch.substack.com/p/tullow-oil-tlw-ln-tlwl) _2024-02-20 · Michael_ Apparently, Jubilee is not delivering according to management's own projections ## [Persona-led AI publishing (Sponsored)](https://crawlproof.com/a/AvRoVNAi0nbC) _2024-02-20 · **Sponsored**_ Generate drafts, schedule subdomain publishing, and keep human review where needed. ## [Tullow Oil](https://brevarthanresearch.substack.com/p/tullow-oil-905) _2024-01-17 · Michael_ TLW LN: A "Jubilee Year" or Watering Out?