Is a shared library dynamically or statically linked?

I have a trivial static library prepared from two object files

ld -shared -o libfoobar.so foo.o bar.o

When I check the type of the library file with the file utility, it reports that the library is dynamically linked:

file libfoobar.so
# libfoobar.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, with debug_info, not stripped

When I ask the same (?) question using ldd, it reports that the library is statically linked:

ldd libfoobar.so
# statically linked

How should I reconcile these two outputs?

uname -a
# Linux leo 4.15.0-124-generic #127-Ubuntu SMP Fri Nov 6 10:54:43 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

Know someone who can answer? Share a link to this question via email, Twitter, or Facebook.