Group 1 - The Hong Kong stock market saw a collective decline in cryptocurrency-related stocks, with Star Chain Group falling over 23%, OSL Group down over 10%, and OK Blockchain down over 7% [1] - Bitcoin dropped to a 10-month low of $74,546.46 [1] Group 2 - Star Chain Group (code: 00399) decreased by 23.53% to a latest price of $0.065, with a total market capitalization of $139 million [2] - OSL Group (code: 00863) fell by 10.44% to a price of $15.010, with a market cap of $11.927 billion [2] - OK Blockchain (code: 01499) declined by 7.61% to $0.170, with a market value of $91.3 million [2] - Other notable declines include Boyaa Interactive down 6.97%, New Fire Technology Holdings down 6.30%, and Guotai Junan International down 5.24% [2]