Johannes Bartlema
Johannes Bartlema @ACM-NL

Performance
All

-2.25%2026
2026
23.27%2025
2025
10.80%2024
2024
1.46%2023
2023
3.00%2022
2022
3.92%2021
2021
23.3%0%-23.3%
Discussions
Johannes Bartlema
Johannes Bartlema
Netherlands
12d
Airbus: From Worst to Outperform โ€“ A Rare Quant Model Reversal In a striking turnaround, our proprietary quant model has upgraded Airbus $AIR.PA (AIRBUS SE) from โ€œWorstโ€ in June 2026 to โ€œOutperformโ€ this month. Such a rapid shift is rare and underscores the power of systematic signals when fundamentals... Show More
Johannes Bartlema
Johannes Bartlema
Bought $AIR.PA @198
Netherlands
12d
I've just opened a position using 1.19% of my equity.
Not investment advice. The author may have financial interests in the mentioned instruments.
AIR.PA
AIRBUS SE
196.06
-3.34 (-1.68%)
Johannes Bartlema
Johannes Bartlema
Netherlands
1mo
Edited
Japan Lent the World $1 Trillion. Itโ€™s Starting to Ask for It Back. For three decades, Japanese savers and institutions poured capital abroad in search of yield, since domestic bonds paid almost nothing. That capital financed everything from US Treasuries to European real estate to emerging-market debt... Show More
Johannes Bartlema
Johannes Bartlema
Sold $AIR.PA @192.86
Netherlands
2mo
I've just opened a position using 0.87% of my equity.
Not investment advice. The author may have financial interests in the mentioned instruments.
AIR.PA
AIRBUS SE
196.06
-3.34 (-1.68%)
Johannes Bartlema
Johannes Bartlema
Netherlands
2mo
Shorting works too: our Stellantis $STLAP.PA (Stellantis NV) position ๐Ÿ“‰ Most investors only think in one direction: buy and go long. But a good quantitative model doesn't just tell you what to buy โ€” it tells you what to avoid, and sometimes what to actively bet against. Our model flagged Stellantis... Show More
Johannes Bartlema
Johannes Bartlema
Netherlands
3mo
Return On Reinvested Investment (RORI) - a new concept to think about Are you analyzing the right thing when you pick a stock? ROIC tells you how profitable a business is today. It doesn't tell you whether it can reproduce that profitability again and again, at scale. At ACM we have been working... Show More
Johannes Bartlema
Johannes Bartlema
Netherlands
3mo
Hi, I just purchased $GEBN.ZU (Geberit AG) which has become an outperform in our model.
Not investment advice. The author may have financial interests in the mentioned instruments.
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GEBN.ZU
Geberit AG
548.80
2.40 (0.44%)
Johannes Bartlema
Johannes Bartlema
Netherlands
4mo
Stellantis $STLAP.PA (Stellantis NV) - dark clouds continuing? We're in one of the most uncertain macro environments in years: Trump's 25% auto tariffs, geopolitical noise, the Fed on hold. In times like these, I look for structurally weak names in the most exposed sectors. Operational Gridlock:... Show More
Johannes Bartlema
Johannes Bartlema
Bought $BESI.NV @253.2
Netherlands
4mo
I've just opened a position using 2.26% of my equity.
Not investment advice. The author may have financial interests in the mentioned instruments.
BESI.NV
BE Semiconductor Industries NV
176.65
-12.60 (-6.66%)
Johannes Bartlema
Johannes Bartlema
Netherlands
5mo
$PBR (Petroleo Brasileiro SA Petrobras-ADR) โ€” up 8% in a month, 80% in six months. Is there still room? Brent is around $95โ€“96 today, still ~30% above pre-war levels. Tanker traffic through Hormuz is down 90% from before the Then on April 13 Petrobras drops a new pre-salt discovery in the Campos Basin.... Show More

About Johannes Bartlema
Netherlands
Strategy: Quant

Quant-driven investor - 35 years in finance https://linktr.ee/amsterdamcapitalmanagement
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