Is Berkshire’s sell-off on Buffet’s retirement a “Buy” opportunity ?

Hey there. I have always viewed Berkshire as a buy, and I add it routinely in my portfolio.

However, as you can tell by my portfolio moves on the main page, I added to it today, a relatively healthy amount, as I do feel this selloff on his resignation is a bit overblown. This has been known for quite some time, including the overall succession plan, so I took advantage of the short-term dip here and added more. It always was one of my larger equity holdings, but is now the largest by about 1.5%~.