Insights

The forces. Not the headlines.

Analysis and commentary on markets, companies, and the forces that move them.

Investor Psychology & Behavior

Position Size and Emotional Intensity

Doubling a position does not double the emotional response. The response stays nearly flat below a certain threshold and rises sharply above it, and that threshold varies by person and is seldom measured.

July 24, 20263 min read
Investor Psychology & Behavior

Why Information Consumption Spikes During Declines

Readership of market information peaks during declines. The quality of market information reaches its low point across the same stretch. The coincidence in timing is no accident.

July 24, 20263 min read
Investor Psychology & Behavior

How Echo Chambers Harden Mistaken Views

Hearing the same argument repeatedly registers in the mind as independent evidence accumulating. Where the repetitions originate from a single source, the confidence that accumulates has nothing underneath it.

July 24, 20263 min read
Investor Psychology & Behavior

The Two Forms of Fear of Missing Out

Fear of missing out is usually described as an urge to buy into something. Its more common form appears in people who already hold the asset, and it is far better disguised.

July 24, 20263 min read
Investor Psychology & Behavior

Why Investors Remember the Calls They Got Right

Memory preserves forecasts selectively. Correct forecasts come with clear cues for recall. Incorrect ones lack any occasion that would bring them back to mind.

July 24, 20263 min read
Investor Psychology & Behavior

Paper Losses and Realised Losses

The same sum of money carries a different psychological weight on paper from the weight it carries once realised. The difference has no economic basis and influences decisions with great consistency.

July 24, 20263 min read