Blue chips put on a show on Monday. In the top of the session MSN, GAS and BVH were the main forces pulling the VNI into the winning territory. The big three’s advance, especially GAS in part explained why there were moments the VNI was positive while the VN30 basket of blue chips struggled in the red in the absence of the ticker. However, in the afternoon session, MSN lost momentum and VNM surprisingly pulled the main index back into losing territory.