The index barely dropped this week, but individual stocks are getting crushed.

Samsung Electronics and Nix recovered on the 2nd, but they're dipping a bit today.
Power, defense, robotics, automotive, shipbuilding, etc.
They've been dropping by almost 10% for about 3 days now... ㅡㅡ...
Maybe because secondary batteries and some other sectors aren't reacting, my account is melting away ㅠㅠ ‌