"The amount of Bitcoin that hasn't been moved or sold for a long time has reached a new record high of 14 million $BTC ."

Explanation:

Illiquid supply means Bitcoin that is being held tightly and not actively traded or sold.

14,000,000 BTC means 14 million Bitcoins are now considered "locked away" and not easily available in the market.

This usually shows that people are holding Bitcoin for the long term and not planning to sell it soon.