(Bloomberg) -- A batch of exchange-traded funds investing directly in crypto will debut in Hong Kong on Tuesday, heralding potential competition for US Bitcoin products whose popularity stoked a record rally in the digital asset.Most Read from BloombergTesla Soars on Tentative China Approval for Driving SystemStocks Trade for 390 Minutes a Day. Increasingly, Only 10 MatterYen Sparks Intervention Suspicion After U-Turn From 1990 LowsWhat 60,000 Headlines Say About the Fed’s Next MoveElliott Built