Shares of Cisco Systems and Walmart are seeing an increase as both companies report positive earnings. Walmart's revenue rose 5.7% to $161.6 billion, surpassing analyst forecasts, and its online sales jumped 24%. Cisco Systems reported a 30% increase in product orders, leading to better-than-expected quarterly earnings. As a result, Cisco's stock rose over 2% and Walmart's stock rose nearly 2% in premarket trading. On the other hand, Hawaiian Electric shares plunged 12% after it was reported that the company is exploring options to address financial and legal challenges following the Maui wildfires. Overall, investors are keeping an eye on these stocks as they continue to perform well.