Apex domains cannot have CNAME records.
Question and response
Question
dig stansberryreserch.com. NS
Answer
stansberryreserch.com. 5 NS ns1.stansberryreserch.com.
stansberryreserch.com. 5 NS ns2.stansberryreserch.com.
Authority
The response has no authority records.
Additional
ns1.stansberryreserch.com. 5 A 192.142.62.203
ns2.stansberryreserch.com. 5 A 70.32.1.174
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0