Ethereum is exploding higher Wednesday, trading up by 32% at $299.70. It hit a high of $308 earlier in the session.

The climb back above the $300 level comes just less than a week after a flash crash on the Global Digital Asset Exchange pushed Ethereum's price down to as low as $0.10 before it quickly recouped its losses. After initially saying customers would not be refunded, GDAX reversed course and said those affected would be made whole.

Despite the big run-up from the flash-crash low, Ethereum still remains well below its all-time high of $419.30, set June 12. It is up by close to 3,600% in 2017.