Generally speaking, geopolitical events tend to produce a “whoosh” lower on fear and then a solid rebound once the war begins... hence the trading strategy, "Buy when the bullets fly."
There is a group of charts making the rounds (see attached) that show how effective it has been to “buy the invasions” over the years. In short, the only time this approach didn’t work well was when stocks were entrenched in the “Tech Bubble – Secular Bear.”
