Nissan and Honda shares rise as report says automakers may call off merger talks

1. Honda and Nissan consider halting merger talks due to disagreements. 2. Honda's proposal to make Nissan a subsidiary faced opposition. 3. Nissan's shares rose up to 7.4%, while Honda's climbed 4.2%. 4. Analysts warn long-term uncertainty remains for both automakers. 5. Nissan faces significant operational challenges including job cuts and profit declines.