The most-talked-about stocks in the Reddit subforum Wallstreetbets were mostly lower hours before Tuesday's opening bell.

ZIM Integrated Shipping Services (ZIM) rose by 35.1% in pre-bell activity, after a 4.8% increase from the previous session. ZIM said it has agreed to be acquired by Hapag-Lloyd for $35 per share in cash, representing an equity value of about $4.2 billion.

Micron Technology (MU) fell by 2.3% hours before the open, following a 0.6% decline from Friday's session.

Sandisk (SNDK) was 2.2% lower premarket, after a 0.6% decline at Friday's close.

Tesla (TSLA) declined by 1.3% in pre-bell hours, reversing a 0.1% increase from Friday's session.

Nvidia (NVDA) was down 1.2% pre-bell, after a 2.2% fall from the previous session.

Amazon.com (AMZN) declined by 0.4% premarket, after closing Friday with 0.4% decline.

Microsoft (MSFT) was 0.5% lower in pre-bell hours, following a 0.1% decline at Friday's close.

Dow (DOW) was 0.2% lower premarket, after a 0.5% fall from the previous session.