The strait of hormuz is the opposite of protected right now. Insurance companies aren't willing to cover ships if they enter the strait to pick up a load of oil, so little commercial traffic is occurring.

The real cost should include the spike in oil prices, the world consumes about 100 million barrels a day, so every $10 increase costs the world a $1 billion a day. We're already up ~$10, and it might continue to rise depending on how things go. You probably should include LNG in there too. If this oil halt is protracted, your stocks and bonds will be dragged down as well.