ChainThink report: On December 17, according to DefiLlama data, activity across major Perp DEXs cooled down over the past 24 hours, with Lighter regaining the top spot in trading volume, followed by Aster and Hyperliquid. Meanwhile, most platforms maintained high open interest levels, indicating that despite a decline in market trading enthusiasm, existing positions continue to engage in speculative positioning.

Lighter recorded approximately $7.51 billion in 24-hour trading volume, TVL of around $1.46 billion, and open interest of $1.67 billion;

Aster reported 24-hour trading volume of about $6.91 billion, TVL of roughly $1.32 billion, and open interest of $2.53 billion;

Hyperliquid saw 24-hour trading volume of approximately $5.37 billion, TVL of about $4.13 billion, and open interest of $7.23 billion;

ApeX posted 24-hour trading volume of around $2.83 billion, TVL of approximately $46.24 million, and open interest of $101 million;

EdgeX recorded 24-hour trading volume of about $2.28 billion, TVL of roughly $389 million, and open interest of $786 million;

Variational generated 24-hour trading volume of approximately $1.24 billion, TVL of around $66.18 million, and open interest of $337 million;

Backpack achieved 24-hour trading volume of about $1.23 billion, TVL currently undisclosed, and open interest of $204 million;

Pacifica reported 24-hour trading volume of approximately $587 million, TVL of around $41.58 million, and open interest of $59.02 million.