The Slow Compounding Investment Framework: The Foundation of Long-Term Success
Slow Compouding is an investment research newsletter focused on a simple idea:
“Own high-quality companies that generate shareholder value and give compounding time to work.”
The following principles form the basis of my investment philosophy.
👔 1. Think like a business owner
A stock is not a ticker—it’s a share of a real business.
Instead of asking, “Will the stock go up next quarter?” I ask:
How good is the business? Does it have a moat?
Which growth opportunities does the company have?
Who is running it and how do they allocate capital?
What could it look like in 5-10 years?
…
I am not trying to predict the next quarter. I care about where the business can be over a multi-year period. I am a business analysts, not a market, macroeconomic or security analyst.
When listening to earnings calls, it’s common to observe sell-side analysts seeking validation for short-term trends—often on a monthly basis—to forecast the upcoming quarter. Rarely, however, do they inquire about the long-term competitive advantages or structural strengths of the business.
It’s important to recognize that businesses are not machines; growth is rarely linear, and quarterly results will naturally fluctuate.
🏰 2. Focus on quality and moats
Great companies earn high returns on incremental invested capital (ROIIC) and can defend those returns.
I look for:
Durable competitive advantages (moats)
Strong brands, switching costs, network effects, or cost advantages
Businesses models that can survive the next downturn
If a company can keep reinvesting at high ROIIC for many years, shareholder value creation can be enormous.
🔄 3. The power of compounding and long-term thinking
Compounding is slow at the start and powerful later. Most investors never see the “later” because they sell too soon.
Compounding is “back-loaded”. Early gains may seem small, but as a business reinvests profits at a high ROIIC, the effects become exponential. Investors who frequently buy and sell stocks disrupt the process.
⏱️ 4. No market timing, no macro guessing
Timing the market is nearly impossible (i.e. buying at the exact bottom and selling at the exact top). Historical data shows that even poorly timed investments in quality companies can deliver strong long-term returns.
Instead, I focus on:
Profitability
ROIIC & Reinvestment rate
Growth runway
Resilience
…
I avoid macro and interest-rate forecasts. It’s nearly impossible to get any of these predictions right and even if they have materialized, it doesn’t necessarily mean the stock reflects these predictions. Since 2020, investors had to navigate (1) a global pandemic, (2) a post-pandemic market bubble, (3) supply chain disruptions, (4) soaring inflation, (5) the Fed managing to rein inflation without triggring a deep U.S. recession, (6) the Russia/Ukraine war, (7) the Israel/Gaza conflict, (8)a global trade war, (9) the Israel/Iran conflict, (10) several bear markets in just five years.
If you had told someone at the start of 2020 that all of this would happen, they probably would have avoided the market—or even considered shorting it…
🔥 5. Capital allocation
What a company does with its cash matters as much as how it earns it. The ability to reinvest earnings at high ROIIC is crucial for future earnings growth.
I look for management teams that:
Reinvest in the core business at high ROIIC
Make smart (!) acquisitions
Buy back shares only when they are undervalued and promise a higher return than organic/inorganic growth
Pay dividends only after reinvestment opportunities are funded
A company with high ROIIC and a long reinvestment runway is the ideal compounding machine.
🏛️ 6. Risk management: avoiding permanent capital loss
Risk is losing money and not getting it back, i.e. the potential for permanent loss of capital. Short-term stock price fluctuations are not to be considered as risk.
I try to avoid:
Weak balance sheets and heavy leverage
Poor governance and misaligned incentives
Structurally declining industries
Businesses without a moat
Surviving the bad times is a key part of long-term success.
💡 7. Simplicity
If I need an extremely complex model or DCF valuation or a fragile set of assumptions to justify a position, I pass.
For instance, if I need to calculate WACC to understand if a business is creating shareholder value, then it probably doesn’t and the margin of safety is too low!
Instead, I focusing on a few key drivers (as mentioned above).
⌛️ 8. Patience
Patience is one of the greatest advantages a long-term private investors can have.
Unlike many institutional investors, we don’t face constant pressure from clients, redemptions, or quarterly benchmarks. We don’t need to buy or sell to “show activity”.
Instead, we can treat our money like permanent capital. This structure let’s us truly think in years and decades. It gives the freedom to remain rational markets become emotional and noisy.
💎 9. Intellectual humility
We all have limits. Accepting our boundaries is an edge. I will never know everything about a company. And there is something to worry about all of the time.
Howard Marks said:
“I don’t even think about the timing. In the investment business, it’s very hard to do the right thing, and it’s impossible to do the right thing at the right time.”
What I can control is my process: doing the work, staying within my circle of competence, and keeping emotions in check. The outcome will always include some uncertainty — and that’s fine.
👎🏻 10. Saying no to 99 % of businesses
Most opportunities are not good enough.
I actively look for reasons not to invest—weak economics, poor incentives, limited growth runway, weak balance sheets. Only when an idea passes the filters. Probably I’ll not write about the dozens of companies that haven’t passed this filter.
Investment filter
To turn this philosophy into real decisions, I use a simple filter. A company should tick most of these boxes:
Circle of Competence — I can actually understand the business (and explain it to a child!)
Quality — Sustainably high ROIIC defended by a moat
Margins — The higher, the better. I will not invest in loss-making companies
Cashflow — High Cashflow-Conversion (before reinvestment)
Growth runway — Room to reinvest at high ROIIC for many years
Capital allocation — Smart mix of reinvestment, M&A, buybacks, dividends, debt management
Stability — Strong balance sheet, conservative leverage
Durability — Companies with „staying power“
Skin in the game — Meaningful insider ownership and aligned incentives
Valuation — An attractive price with a margin of safety
This is the lens behind every company you’ll see on Slow Compounding.