We need to diversify our portfolio like Berkshire Hathaway

How do you view the US banking sectors now?
Does value in investing means locking up and not changing positions?
Despite Fed gives the assurance that financial meltdown is not going to happen, negative market sentiment is not going away. We're fearful because of poor risk management in the banks. The trigger of SVB collapse is not weak regulation or FED overtightening measure - is over concentration of long term bonds. Tax payers have to pay for the bank poor judgement when FED rolls out the rescue plan.
Berkshire Hathaway (BH) cut other positions last year e.g. BYD and TMC.  One possiblity for the cut is BH needs cash to prepare for a market crash - hard landing recession.
Diversification
BH is still holding many value stocks - Apple is one of them. There's nothing wrong in holding position if the company's fundamental remains strong. We don't know the real reason for BH to cut banks position in Q4 and can't trade like Gurus which has holding ability if they make mistake.
Bottom line
For retail investors, we can diversify our portfolio to reduce risk. We must learn how to invest in a bear market (recession is coming or already here). Read my previous article if you want to know how I diversify my portfolio:
Re-learn investing and try new strategy