$USDC

The fundamental difference between K and D in the KDJ indicator is:

Line K

- Line K is a fast line that moves faster than line D.

- Line K reacts quickly to price changes, making it more sensitive to price movements.

- Line K is used to identify buy and sell signals in the market.

Line D

- Line D is a slow line that moves slower than line K.

- Line D reacts slowly to price changes, making it less sensitive to price movements.

- Line D is used to confirm the buy and sell signals generated by line K.

The main difference

- The main difference between K and D is the speed of reaction to price changes.

- Line K is fast and reacts quickly to changes, while line D is slow and reacts slowly to changes.

- This difference in speed allows users to identify and confirm buy and sell signals using both lines.