The Investment Signal in the Noise

Perpetual Uncertainty
“Compressed Growth Expectations”
Distributed Profits
The Peaceful Portfolio
Home Again, West Palm and Brian Wilson, RIP

One cannot overstate the importance of Claude Shannon and his 1940s work on information theory at Bell Labs. It was foundational to modern telecommunications and electronics. We’ve seen constant improvement in our ability to communicate because we can separate the important information from the noise.

Those of us of a certain age can remember trying to fine-tune our radios, trying to find the best signal. We needed it so that we could hear the beautiful melodies of the Beach Boys (RIP Brian Wilson, whom I will mention below).

Separating the signal from the noise may be the hardest challenge investors face. We’re all surrounded by constantly changing but mostly unimportant information. Of the small part that really is important, we must decide if it affects our investments. We have to zero in on that part and tune out the rest. And trust me, it is not as pleasant a task as listening to Brian Wilson’s falsetto floating over the harmonics of the Beach Boys.

For instance, I woke up this morning to every news feed telling me about Israel attacking Iran. Certainly, that is a very clear signal in the geopolitical world. The price of oil jumped, and some investors rushed to safer assets. This was a signal of sorts for some styles of investing. Or maybe just their emotions. I am sure trading rooms around the world heard a signal.

But for many investment styles, this is just noise. It won’t affect their portfolio in the long run. But it is human nature, ingrained in us since we were on the African savanna, to look at every event and decide whether it is food or fear. We are emotional animals.