Merger Monday tops off a huge month for deals

Monday was a huge day for for mergers and acquisitions.

Following AT&T's whopping $85 deal for Time Warner, which was announced over the weekend, a number of mid-sized deals were announced Monday morning.

Those include:

• The Chinese conglomerate HNA Group's $6.5 billion stake in Hilton
• The aircraft component maker Rockwell Collins' $6.4 billion deal for B/E Aerospace
• TD Ameritrade's $4 billion acquisition of Scottrade
• American Midstream Partners' deal for JP Energy, which will create a $2 billion pipeline company

This tops off an already big month for mergers and acquisitions.

To date, October has seen $279 billion in announced M&A involving US companies, according to Bloomberg. That's the highest since July 2015, when we saw $337 billion in announced deals.

That excludes deals that have since been scrapped, like $160 billion Pfizer-Allergan merger, which was announced in November 2015 and later blocked by regulators.

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