German Chancellor Angela Merkel met French President Francois Hollande to discuss the plans at the weekend, but they failed to come up with any joint decisions.
EADS shares were up 0.64 percent at 25.16 euros at 1355 GMT, while BAE was off 1.4 percent at 329.90 pence.
BAE is up fractionally since news of the merger talks emerged earlier this month while the market value of EADS has fallen by more than 3.8 billion euros ($4.91 billion).