The cryptocurrency market rallied handsomely on Monday over increased odds of approval of spot Ethereum ETFs, with Bitcoin coming close to breaking its all-time highs. What Happened: The second-largest cryptocurrency, Ether, raked in gains of more than 20% on the day, resulting in a breach of $3,700 for the first time in more than two months. The upsurge caused Ethereum’s Open Interest to shoot up by nearly 28% over the last 24 hours, reaching record highs of $14.95 billion. The rally came after two prominent Bloomberg analysts, Eric Balchunas and James Seyffart raised their odds of spot Ether…