The World Market Update
The World Market Update is a labor of love, written and curated by Douglas Tengdin, CFA, the Managing Director and Founder of World Market Advisors. It is not a recommendation to buy, sell, or hold any security or investment. Everything posted on this site is put here with the explicit understanding that investing – like law, medicine, engineering, or any other profession – must be tailored to fit your particular needs and circumstances. If you need specific investing advice, please consult a professional.
Of Random Walks and Drunken Walks
Can we learn about investing from puppies? Image: João Braun. Source: Pixabay. There’s a study of probability and random walks called “A Drunk and Her Dog.” The idea is that if a person comes out of [...]
Three Bear Markets
I saw three bears near my home last week. Photo: Ron Shawley. Source: Wikipedia. CC-BY-3.0 It was a mama-bear and two cubs. They were crossing the road right outside my house, and I had to come [...]
Signal and Noise
How can we tell the signal from the noise? Photo: Doug Tengdin. Source: Wikipedia. Readings from a device with poor signal isolation. The middle of the plot shows lower noise levels A signal-to-noise ratio is a [...]