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Unforced Errors
Margin of safety, objective ignorance, uncertainty
Eric Bjorndahl
2
3
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Unforced Errors
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Investment Journal #1
Notes to self
Eric Bjorndahl
May 31
2
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Investment Journal #1
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Durability
And its impact on cash flows and valuations
Eric Bjorndahl
May 3
3
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Durability
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2021 Performance Review
In 2021, my portfolio returned 21.16% and the S&P 500 index returned 28.71%. Cash holdings averaged 60.75% for the year. Personal Performance vs. S&P…
Eric Bjorndahl
Jan 1
1
2
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2021 Performance Review
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Shifting Baselines
Callum Roberts, author and marine conservation biologist, describes shifting baselines as: …intergenerational changes in how we perceive our world. Each…
Eric Bjorndahl
Sep 30, 2021
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Shifting Baselines
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Thoughts on Growth
An increasingly prevalent model for growth, especially in the tech / startup world, is: Spend (and lose) a lot of money to buy users Monopolize the…
Eric Bjorndahl
Aug 27, 2021
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Thoughts on Growth
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China
The Hang Seng Tech index in Hong Kong has declined 40% in the past six months. This is greater than the S&P 500 drawdown of 32% in March 2020, when fear…
Eric Bjorndahl
Aug 17, 2021
1
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China
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Market Timing
Cash and "market timing"
Eric Bjorndahl
Jun 4, 2021
2
3
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Market Timing
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