Bullpen.News From Edwin Dorsey
Get Daily Recap Feedback

Sunday, October 18, 2026

Back to today

From X

@convequity

Convequity on X

$TSEM remains one of our highest-conviction holdings, even after we trimmed the position in our 4Q26 rebalance. We wanted to keep Tower at its 6.1% portfolio weight despite a roughly 25% fall in its share price over the past quarter. To make room for new holdings, we trimmed the weight to 4.75% and banked some profits. With SpaceX ($SPCX) also becoming a larger holding, we are limiting further additions to avoid concentrating the portfolio in a few companies. Our confidence in Tower's technology remains strong. We think Tower's competitive advantage comes from combining chips that send and receive data using light with the electronic chips that drive and control them. Next-generation optical connections require these components to exchange more data within a smaller space. Hybrid bonding achieves this by joining the chips through densely packed electrical connections that move large amounts of data in a compact package. In our view, Tower's capabilities here are effectively unmatched among Western suppliers. Tower has also added manufacturing capacity more successfully than we expected. It can fulfill more customer orders itself, leaving less business for $GFS. Customers have less reason to switch to a supplier whose technology they consider weaker when Tower can meet their needs, so the capacity expansion strengthens our Tower thesis and weakens the case for competitors that rely on orders Tower cannot accommodate.
@convequity 3 clicks

Convequity on X

We think memory consumption can keep growing while memory prices fall. Memory prices depend on how quickly supply grows, not only on how much demand grows. Existing suppliers and Chinese manufacturers are expanding production. If new production and sales of distributor stock outpace demand, consumption can rise while prices decline. Chinese manufacturers reportedly hold enough lithography machines for three to four years of expansion. That stockpile could allow them to keep adding production capacity even if sanctions block further deliveries of the affected machines. Reports of large distributor inventories and falling spot prices for DDR memory point to a further source of supply. We have not verified the inventory estimates. If distributors start selling down the stock they accumulated in anticipation of shortages, that adds to supply and puts further pressure on prices. We hold SanDisk ($SNDK) for storage and high-bandwidth flash (HBF). HBF could let flash deliver data fast enough for more demanding computing tasks. That gives us a way to benefit from growing data demand without relying entirely on high memory prices.

Investor Letters

All letters

Is The Market Turning The Page?

CoreWeave’s debt and equity price action is framed as a wake-up call for investors amid a broader market discussion.

CRWV $34B
WHAT ARE WE DOING? “Contrarians At The Gate” 52 clicks

AppLovin Deep Dive

AppLovin rebuilt its ad model with AXON 2.0, lifting LTM revenue to about $7 billion and margins to 77% as Unity competition threatens…

APP $88B
Speedwell Research 27 clicks

Constellation: Stars Aligning?

Constellation Brands trades near $127 at roughly 11x next-twelve-month EV/EBIT, with recent business results offsetting concerns over…

STZ $22B
TSOH Investment Research 27 clicks

Lennar, Part One: The Story

Lennar grew from a Miami builder into one of America’s two largest homebuilders, controlling land largely through options and land banks…

LEN $17B
Latticework by MOI Global 15 clicks

Publications we follow

Every publication on this site, hand-picked.

130 publications

Newsletters 108

YouTube 4

Blogs 17

Seeking Alpha 52 of 240

Nominate a publication

X accounts we follow

Every account on this site, hand-picked.

89 accounts
Nominate an account

Investor letters we follow

189 firms

Sectors

Ordered by how often our editor reaches for them.