$NIO Inc (NIO.US)$ $NIO-SW (09866.HK)$ $XPeng (XPEV.US)$ $XP...

$NIO Inc (NIO.US)$ $NIO-SW (09866.HK)$ $XPeng (XPEV.US)$ $XPENG-W (09868.HK)$ Can someone explain the correlation between XPENG/NIO stock value difference in US and HK stock market. XPENG trades at around $43 in HK and $10 in US. But NIO trades at $46 in HK and just under $6 in US. Why is this disparity between the both stock valuation. Shouldn't NIO be also around $10-11?