ISTJ

Steady, thorough, built on what works.

Leads from a detailed store of what has worked (Si), organized into reliable systems (Te). Steady and thorough; weakest at entertaining wild possibilities (Ne).

A working hypothesis, not a verdict. This page describes the ISTJ pattern — not anyone’s personal result. Type describes preferences, not abilities; it doesn’t predict job performance or investing skill, and it should never be used for hiring or selection.