The price formation, ratios are text book impulsive in BRK-B and I believe there are many chances wave 4 is complete and we have started a wave 5 move that will eventually bring price towards 200$. First target is around 193$. Wave 3 is 161.8% of wave 1, wave 4 retraced wave 3 by 38%, wave 5 is expected to move close or higher from the 61.8% wave 1 to 3 distance. The entire upward move from 2016 lows looks incomplete and a new high is needed to complete the sequence.
Wave 5 could also have different targets according to the relationship it may have with wave 1. Below is the most probable area where I expect wave 5 of 5 to complete.
Thank you for taking the time to catch up on my thinking.