Pinned
Jan Klosowski
@klos.bsky.social
· Dec 6
At +50% passive, it's crazy, but if it ever reaches 85%, it'll be interesting to see what that means.
Right now, value investing still works for stocks not included in major indices. For those in the top 100, the P/E ratio has become useless.
janklosowski.substack.com/p/index-inv...
Right now, value investing still works for stocks not included in major indices. For those in the top 100, the P/E ratio has become useless.
janklosowski.substack.com/p/index-inv...
When the source of knowledge is LLM which picks the currently most probable answer, it creates a stealthy civilizational regression to the mean.
What can be the long-term impact?
What can be the long-term impact?
January 4, 2026 at 2:44 PM
When the source of knowledge is LLM which picks the currently most probable answer, it creates a stealthy civilizational regression to the mean.
What can be the long-term impact?
What can be the long-term impact?
On Sundays, peasants can visit the cathedral to experience the sacred.
January 2, 2026 at 8:17 PM
On Sundays, peasants can visit the cathedral to experience the sacred.
The premise that the employment-to-retirement pipeline was always tied to stable, predictable labor demand.
That part is breaking.
That part is breaking.
January 2, 2026 at 2:48 PM
The premise that the employment-to-retirement pipeline was always tied to stable, predictable labor demand.
That part is breaking.
That part is breaking.
The work/save/retire playbook is dead.
janklosowski.substack.com/i/175782838...
janklosowski.substack.com/i/175782838...
January 1, 2026 at 2:45 PM
The work/save/retire playbook is dead.
janklosowski.substack.com/i/175782838...
janklosowski.substack.com/i/175782838...
Tonight after 6 years online, I turn off my service, and it goes open source.
MiCA regulations leave no room for small companies:
The cost of compliance grew 4x every 2y, and now hits previously unregulated businesses.
Tomorrow I start again.
HNY
janklosowski.substack.com/p/eu-killed...
MiCA regulations leave no room for small companies:
The cost of compliance grew 4x every 2y, and now hits previously unregulated businesses.
Tomorrow I start again.
HNY
janklosowski.substack.com/p/eu-killed...
December 31, 2025 at 2:54 PM
Tonight after 6 years online, I turn off my service, and it goes open source.
MiCA regulations leave no room for small companies:
The cost of compliance grew 4x every 2y, and now hits previously unregulated businesses.
Tomorrow I start again.
HNY
janklosowski.substack.com/p/eu-killed...
MiCA regulations leave no room for small companies:
The cost of compliance grew 4x every 2y, and now hits previously unregulated businesses.
Tomorrow I start again.
HNY
janklosowski.substack.com/p/eu-killed...
If your earning power is becoming obsolete faster than you can re-skill, then the traditional "grind salary → diversify into bonds → retire at 65" strategy leaves you exposed. janklosowski.substack.com/p/the-windo...
December 30, 2025 at 8:16 PM
If your earning power is becoming obsolete faster than you can re-skill, then the traditional "grind salary → diversify into bonds → retire at 65" strategy leaves you exposed. janklosowski.substack.com/p/the-windo...
I'm slowly becoming an index investing doomer:
The idea that most people invest in 500 companies they can't even name just because other people do it is crazy.
It works as long as everybody buys, but when the market reverses: who's the buyer on the other side?
The idea that most people invest in 500 companies they can't even name just because other people do it is crazy.
It works as long as everybody buys, but when the market reverses: who's the buyer on the other side?
December 30, 2025 at 2:46 PM
I'm slowly becoming an index investing doomer:
The idea that most people invest in 500 companies they can't even name just because other people do it is crazy.
It works as long as everybody buys, but when the market reverses: who's the buyer on the other side?
The idea that most people invest in 500 companies they can't even name just because other people do it is crazy.
It works as long as everybody buys, but when the market reverses: who's the buyer on the other side?
When traditional wealth-building paths feel blocked (real estate/wages/pensions), gambling becomes a rational hope trade:
If you can't save your way to security, maybe you can get lucky.
The expected value is terrible, but it's better than no value at all.
If you can't save your way to security, maybe you can get lucky.
The expected value is terrible, but it's better than no value at all.
December 29, 2025 at 2:46 PM
When traditional wealth-building paths feel blocked (real estate/wages/pensions), gambling becomes a rational hope trade:
If you can't save your way to security, maybe you can get lucky.
The expected value is terrible, but it's better than no value at all.
If you can't save your way to security, maybe you can get lucky.
The expected value is terrible, but it's better than no value at all.
Silver is not Bitcoin.
Mining is now extremely profitable, and the supply side has to change. Silver is not that scarce. At $14, it was simply unattractive to mine. At $80, miners are in a rush.
Mining is now extremely profitable, and the supply side has to change. Silver is not that scarce. At $14, it was simply unattractive to mine. At $80, miners are in a rush.
December 28, 2025 at 4:22 PM
Silver is not Bitcoin.
Mining is now extremely profitable, and the supply side has to change. Silver is not that scarce. At $14, it was simply unattractive to mine. At $80, miners are in a rush.
Mining is now extremely profitable, and the supply side has to change. Silver is not that scarce. At $14, it was simply unattractive to mine. At $80, miners are in a rush.
The chart doesn't say that GPT started doing those jobs in 2023.
It's a paradigm shift.
Companies hire for the future. The GPT launch was a seismic shock, that adjusted roadmaps.
Even if not fully implemented, AI is now on everybody's roadmap.
It's a paradigm shift.
Companies hire for the future. The GPT launch was a seismic shock, that adjusted roadmaps.
Even if not fully implemented, AI is now on everybody's roadmap.
December 27, 2025 at 8:15 PM
The chart doesn't say that GPT started doing those jobs in 2023.
It's a paradigm shift.
Companies hire for the future. The GPT launch was a seismic shock, that adjusted roadmaps.
Even if not fully implemented, AI is now on everybody's roadmap.
It's a paradigm shift.
Companies hire for the future. The GPT launch was a seismic shock, that adjusted roadmaps.
Even if not fully implemented, AI is now on everybody's roadmap.
The irony of the housing market is that while today we discuss affordability as the biggest problem, in 30 years we may see those apartments paid back with sweat, blood, and tears standing empty. janklosowski.substack.com/p/the-50-ye...
December 23, 2025 at 8:16 PM
The irony of the housing market is that while today we discuss affordability as the biggest problem, in 30 years we may see those apartments paid back with sweat, blood, and tears standing empty. janklosowski.substack.com/p/the-50-ye...
For years I was telling people: don't worry about quantum computing until $GOOGL starts changing their cryptography to post-quantum.
This year they started.
This year they started.
December 23, 2025 at 2:42 PM
For years I was telling people: don't worry about quantum computing until $GOOGL starts changing their cryptography to post-quantum.
This year they started.
This year they started.
46.5% of S&P 500 companies have at least one warning sign.
56 companies have 3+ warning signs.
The idea of index Investing is to outsource analysis to others. The problem starts when the majority of investors outsource, without realizing they’re now those who create the market.
56 companies have 3+ warning signs.
The idea of index Investing is to outsource analysis to others. The problem starts when the majority of investors outsource, without realizing they’re now those who create the market.
December 22, 2025 at 8:16 PM
46.5% of S&P 500 companies have at least one warning sign.
56 companies have 3+ warning signs.
The idea of index Investing is to outsource analysis to others. The problem starts when the majority of investors outsource, without realizing they’re now those who create the market.
56 companies have 3+ warning signs.
The idea of index Investing is to outsource analysis to others. The problem starts when the majority of investors outsource, without realizing they’re now those who create the market.
The key concept here is "risk/reward ratio."
How likely is it that silver will never be lower?
At this point, what is more likely: 2x up or 2x down?
Silver is not Bitcoin, and supply is not finite.
How likely is it that silver will never be lower?
At this point, what is more likely: 2x up or 2x down?
Silver is not Bitcoin, and supply is not finite.
December 22, 2025 at 2:45 PM
The key concept here is "risk/reward ratio."
How likely is it that silver will never be lower?
At this point, what is more likely: 2x up or 2x down?
Silver is not Bitcoin, and supply is not finite.
How likely is it that silver will never be lower?
At this point, what is more likely: 2x up or 2x down?
Silver is not Bitcoin, and supply is not finite.
The current global fertility rate is 2.25. This is how many kids the average woman has. As long as this rate is no smaller than 2.1—the replacement level—the population will be growing, and that’s the demand side of the real estate market. janklosowski.substack.com/p/the-50-ye...
December 20, 2025 at 7:18 PM
The current global fertility rate is 2.25. This is how many kids the average woman has. As long as this rate is no smaller than 2.1—the replacement level—the population will be growing, and that’s the demand side of the real estate market. janklosowski.substack.com/p/the-50-ye...
You'll be amazing at predicting $MSTR price if you understand what it is:
It's a leveraged Bitcoin without margin calls.
It's a leveraged Bitcoin without margin calls.
December 19, 2025 at 4:15 PM
You'll be amazing at predicting $MSTR price if you understand what it is:
It's a leveraged Bitcoin without margin calls.
It's a leveraged Bitcoin without margin calls.
🇪🇺 EU bans US ETFs.
Why?
EU wants ETFs to project future performance (KID) using language that, according to US law, would expose them to litigation risk.
Yes, the US gets the market and the EU doesn't.
Result:
You can't buy a safe ETF, but you can buy risky CFDs on it.
Why?
EU wants ETFs to project future performance (KID) using language that, according to US law, would expose them to litigation risk.
Yes, the US gets the market and the EU doesn't.
Result:
You can't buy a safe ETF, but you can buy risky CFDs on it.
December 19, 2025 at 2:48 PM
🇪🇺 EU bans US ETFs.
Why?
EU wants ETFs to project future performance (KID) using language that, according to US law, would expose them to litigation risk.
Yes, the US gets the market and the EU doesn't.
Result:
You can't buy a safe ETF, but you can buy risky CFDs on it.
Why?
EU wants ETFs to project future performance (KID) using language that, according to US law, would expose them to litigation risk.
Yes, the US gets the market and the EU doesn't.
Result:
You can't buy a safe ETF, but you can buy risky CFDs on it.
Even 30-year mortgage makes you asking question about how the real estate market may look like in 30 years.
The current prediction is that by the year 2050, even the global average will already be below 2.1: janklosowski.substack.com/p/the-50-ye...
The current prediction is that by the year 2050, even the global average will already be below 2.1: janklosowski.substack.com/p/the-50-ye...
December 17, 2025 at 8:17 PM
Even 30-year mortgage makes you asking question about how the real estate market may look like in 30 years.
The current prediction is that by the year 2050, even the global average will already be below 2.1: janklosowski.substack.com/p/the-50-ye...
The current prediction is that by the year 2050, even the global average will already be below 2.1: janklosowski.substack.com/p/the-50-ye...
Chart Generator got some cool updates:
- Stocks can now also show: P/E, P/B, and Mcap
- Shortcuts for popular market indexes
- Labels are not overlapping anymore
- You can set chart colors
More on the way. Request features!
$BTC $NDX $GSPC $AMZN $RUT
- Stocks can now also show: P/E, P/B, and Mcap
- Shortcuts for popular market indexes
- Labels are not overlapping anymore
- You can set chart colors
More on the way. Request features!
$BTC $NDX $GSPC $AMZN $RUT
December 17, 2025 at 2:13 PM
Chart Generator got some cool updates:
- Stocks can now also show: P/E, P/B, and Mcap
- Shortcuts for popular market indexes
- Labels are not overlapping anymore
- You can set chart colors
More on the way. Request features!
$BTC $NDX $GSPC $AMZN $RUT
- Stocks can now also show: P/E, P/B, and Mcap
- Shortcuts for popular market indexes
- Labels are not overlapping anymore
- You can set chart colors
More on the way. Request features!
$BTC $NDX $GSPC $AMZN $RUT
December 17, 2025 at 1:38 PM
Zuck cooks. $META $GOOGL $AMZN $MSFT
December 16, 2025 at 8:12 PM
Zuck cooks. $META $GOOGL $AMZN $MSFT
Substack has reached 100 subscribers. Thank you.
First monthly research is coming soon. janklosowski.substack.com
First monthly research is coming soon. janklosowski.substack.com
December 16, 2025 at 2:09 PM
Substack has reached 100 subscribers. Thank you.
First monthly research is coming soon. janklosowski.substack.com
First monthly research is coming soon. janklosowski.substack.com
There are 4 robotics ETFs: $ROBO, $BOTZ, $ARTY, $IBOT
Currently underperforming the S&P, but trending up. I plan to dive deeper into their holdings. I'm likely not aware of most of those companies, especially from Asian markets. For now, the tiny $IBOT has my attention.
Currently underperforming the S&P, but trending up. I plan to dive deeper into their holdings. I'm likely not aware of most of those companies, especially from Asian markets. For now, the tiny $IBOT has my attention.
December 14, 2025 at 12:30 PM
There are 4 robotics ETFs: $ROBO, $BOTZ, $ARTY, $IBOT
Currently underperforming the S&P, but trending up. I plan to dive deeper into their holdings. I'm likely not aware of most of those companies, especially from Asian markets. For now, the tiny $IBOT has my attention.
Currently underperforming the S&P, but trending up. I plan to dive deeper into their holdings. I'm likely not aware of most of those companies, especially from Asian markets. For now, the tiny $IBOT has my attention.
Bitcoin ETFs stole some volume, but don't compete with $MSTR directly. Most people get the "exposure to Bitcoin" part, but they miss the main value proposition:
Leverage without a margin call.
janklosowski.substack.com/i/179412331...
Leverage without a margin call.
janklosowski.substack.com/i/179412331...
December 13, 2025 at 8:16 PM
Bitcoin ETFs stole some volume, but don't compete with $MSTR directly. Most people get the "exposure to Bitcoin" part, but they miss the main value proposition:
Leverage without a margin call.
janklosowski.substack.com/i/179412331...
Leverage without a margin call.
janklosowski.substack.com/i/179412331...
Is insider trading on prediction markets a good thing?
If the goal is accuracy, this is exactly what you want.
The gambling vs information framing likely misses the nuance that not all markets are the same: a meteorologist betting on the weather is not the same as a guy betting on his own divorce.
If the goal is accuracy, this is exactly what you want.
The gambling vs information framing likely misses the nuance that not all markets are the same: a meteorologist betting on the weather is not the same as a guy betting on his own divorce.
December 13, 2025 at 2:47 PM
Is insider trading on prediction markets a good thing?
If the goal is accuracy, this is exactly what you want.
The gambling vs information framing likely misses the nuance that not all markets are the same: a meteorologist betting on the weather is not the same as a guy betting on his own divorce.
If the goal is accuracy, this is exactly what you want.
The gambling vs information framing likely misses the nuance that not all markets are the same: a meteorologist betting on the weather is not the same as a guy betting on his own divorce.