11:47 AM EDT, 04/20/2026 (MT Newswires) -- All three major US stock indexes fell in late-morning trading Monday as tensions between the US and Iran escalated over the weekend.

In company news, QXO (QXO) agreed to acquire TopBuild ( BLD ) for $17 billion. TopBuild ( BLD ) shareholders can elect $505 a share in cash or 20.2 QXO common shares for each TopBuild ( BLD ) share they own, subject to a cap that limits cash to 45% of the total consideration. The deal is expected to close in Q3. QXO shares fell 7.2% around midday, and TopBuild ( BLD ) rose 17%.

Eli Lilly ( LLY ) agreed to acquire Kelonia Therapeutics for up to $7 billion in cash, including an upfront payment of $3.25 billion and subsequent payouts based on certain clinical, regulatory and commercial milestones. The deal is expected to close in H2. Eli Lilly ( LLY ) shares rose 0.2%.

Alphabet's (GOOG, GOOGL) Google ( GOOG ) is in talks with Marvell Technology ( MRVL ) to develop two new processors optimized for AI inference tasks, The Information reported Sunday, citing two people with knowledge of the discussions. Alphabet shares fell 0.9%, and Marvell ( MRVL ) rose 4.1%.

American Airlines Group ( AAL ) said late Friday it was not engaged with or interested in talks about a merger with United Airlines Holdings ( UAL ) . American shares fell 4.4%, and United dropped 2.3%.

Brady (BRC) agreed to acquire Honeywell International's ( HON ) productivity solutions and services business for $1.4 billion in cash. Brady shares eased 0.1%, and Honeywell ( HON ) fell 1.2%.

Price: 23.19, Change: -1.81, Percent Change: -7.24