Laughing Water Capital: A Love Letter to Logic in a Market That’s Lost Its Mind
Written By BuySide Digest Team
Laughing Water Capital: Logic in a World That Doesn’t Care
Every investor says they’re long-term. Matthew Sweeney of Laughing Water Capital actually means it — even when it hurts.
His Q3 2025 letter is a 10-page meditation on patience, logic, and why sometimes the market just doesn’t give a damn. His fund was down –1% for the quarter and –2.7% YTD, while the S&P 500 and Russell 2000 both ripped double digits. It was his worst month ever versus the indexes.
And he couldn’t sound calmer.
“Our drawdown was not caused by any fundamental deterioration… rather, it seems as if the violent move downward was caused by market participants whose approach is more short-term focused than our own.”
Translation: “The tourists are partying, and I’ll just be over here checking the math.”
To read Laughing Water Capital’s letter, click here
The Sound of Patience
Sweeney opens with a twist on the old riddle: If a tree falls in the woods and no one hears it, does it make a sound?
His version:
“If an investment thesis has clear positive developments, but they don’t show up in the numbers yet, do they make a sound?”
That’s the vibe of the whole letter — a quiet, almost stubborn belief that fundamentals still matter, even if the quant machines and AI hype cycles don’t notice.
He argues that 80% of the investing world now runs on quantitative inputs — models that treat GAAP numbers as gospel. His portfolio, by contrast, is full of small, misunderstood companies where value shows up in real life before it ever shows up in the financials.
And right now, the silence is “deafening.”
When Logic Doesn’t Pay (Yet)
The letter reads like a therapy session for rational investors in an irrational world. Sweeney lists a series of situations where his holdings delivered exactly the kind of news any fundamental analyst would celebrate — and the stocks still tanked.
He puts it bluntly:
“If the thesis is validated by reality but not by GAAP earnings yet, the market ignores it.”
His examples are both detailed and relatable:
Clarus Corp (CLAR) – insiders buying, a value-unlock review announced — stock down 21%.
Lifecore Biomedical (LFCR) – new customer wins and favorable regulatory tailwinds — stock down 22%.
PAR Technology (PAR) – record backlog and mega-deals in sight — stock down 40%.
Thryv Holdings (THRY) – SaaS business accelerating, insiders buying — trades at absurd single-digit multiples.
Vistry Group (VTY.L) – record affordable-housing tailwinds and management buying — still in the penalty box.
It’s a hall-of-fame lineup of “right idea, wrong timing.”
The Long Game
The through-line is simple: Sweeney is betting that logic wins eventually. He writes with a mix of resignation and quiet defiance — a tone every real investor will recognize.
“Fundamental business improvements reverberate into the future and eventually reach a crescendo that the market cannot ignore.”
That’s how someone who’s actually investing his family’s money thinks. (And yes, he reminds readers that nearly all of his family’s net worth sits in the fund.)
He even admits he’s been “feeling a bit greedy” and has been adding to positions while the market’s distracted by AI and momentum trades.
That’s not marketing. That’s conviction.
The Bottom Line
Laughing Water Capital’s Q3 letter isn’t a victory lap — it’s a love letter to logic in a market that’s been rewarding noise.
Sweeney’s tone is part Zen monk, part frustrated scientist: the experiments are working; the lab just doesn’t care yet.
For investors who still believe that patience is a competitive advantage, it’s easily one of the most thoughtful pieces of writing this quarter.
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Laughing Water Capital: Logic in a World That Doesn’t Care
Every investor says they’re long-term. Matthew Sweeney of Laughing Water Capital actually means it — even when it hurts.
His Q3 2025 letter is a 10-page meditation on patience, logic, and why sometimes the market just doesn’t give a damn. His fund was down –1% for the quarter and –2.7% YTD, while the S&P 500 and Russell 2000 both ripped double digits. It was his worst month ever versus the indexes.
And he couldn’t sound calmer.
Translation: “The tourists are partying, and I’ll just be over here checking the math.”
To read Laughing Water Capital’s letter, click here
The Sound of Patience
Sweeney opens with a twist on the old riddle: If a tree falls in the woods and no one hears it, does it make a sound?
His version:
That’s the vibe of the whole letter — a quiet, almost stubborn belief that fundamentals still matter, even if the quant machines and AI hype cycles don’t notice.
He argues that 80% of the investing world now runs on quantitative inputs — models that treat GAAP numbers as gospel. His portfolio, by contrast, is full of small, misunderstood companies where value shows up in real life before it ever shows up in the financials.
And right now, the silence is “deafening.”
When Logic Doesn’t Pay (Yet)
The letter reads like a therapy session for rational investors in an irrational world. Sweeney lists a series of situations where his holdings delivered exactly the kind of news any fundamental analyst would celebrate — and the stocks still tanked.
He puts it bluntly:
His examples are both detailed and relatable:
Clarus Corp (CLAR) – insiders buying, a value-unlock review announced — stock down 21%.
Lifecore Biomedical (LFCR) – new customer wins and favorable regulatory tailwinds — stock down 22%.
NextNav (NN) – massive FCC progress toward monetizing spectrum — stock down 20%.
PAR Technology (PAR) – record backlog and mega-deals in sight — stock down 40%.
Thryv Holdings (THRY) – SaaS business accelerating, insiders buying — trades at absurd single-digit multiples.
Vistry Group (VTY.L) – record affordable-housing tailwinds and management buying — still in the penalty box.
It’s a hall-of-fame lineup of “right idea, wrong timing.”
The Long Game
The through-line is simple: Sweeney is betting that logic wins eventually. He writes with a mix of resignation and quiet defiance — a tone every real investor will recognize.
That’s how someone who’s actually investing his family’s money thinks. (And yes, he reminds readers that nearly all of his family’s net worth sits in the fund.)
He even admits he’s been “feeling a bit greedy” and has been adding to positions while the market’s distracted by AI and momentum trades.
That’s not marketing. That’s conviction.
The Bottom Line
Laughing Water Capital’s Q3 letter isn’t a victory lap — it’s a love letter to logic in a market that’s been rewarding noise.
Sweeney’s tone is part Zen monk, part frustrated scientist: the experiments are working; the lab just doesn’t care yet.
For investors who still believe that patience is a competitive advantage, it’s easily one of the most thoughtful pieces of writing this quarter.