Rocket Lab stock jumps 8%, building on strong two-month rally
1. Rocket Lab's stock surged 8% driven by successful rocket launches. 2. The stock has nearly doubled in two months due to strong demand. 3. Partnership with the European Space Agency enhances launch capabilities. 4. CEO cites increased demand for launching entire satellite constellations. 5. Rocket Lab's market value has surpassed $19 billion amid competition.