Cryptocurrency proprietary trading firm Breakout Trading Group has raised $4.50 million in a seed round led by RockawayX. Breakout said Wednesday that other investors in the round include Andrew Kang's Mechanism Capital, Round13 Capital, C ² Ventures and IOBC Capital. Breakout co-founder and CEO Alex Miningham said the company began funding its seed round in February and closed the round early this month with an oversubscription. Breakout initially sought $3 million, received a $6 million commitment, and ultimately closed the round with $4.50 million; the seed round used a pricing round with token warrants; RockawayX has taken a board seat at Breakout and led the round.