Apple $AAPL currently has $192.8B in cash, at current stock prices here are some companies Apple could in theory buy 

Merck $MRK
Tesla $TSLA
Pfizer $PFE
PepsiCo $PEP
Comcast $CMCSA
Toyota $TM
Chevron $CVX
Abbvie $ABBV 
Oracle $ORCL
Salesforce $CRM 
$SAP
Eli Lilly $LLY
Nike $NKE https://t.co/OXgr9GAYOk