De or het marktsentiment?

The correct Dutch article is:

het marktsentiment

Rule Words ending in -ment: usually het. See the rule

How to use marktsentiment

the marktsentimenthet marktsentiment
this marktsentimentdit marktsentiment
that marktsentimentdat marktsentiment
our marktsentimentons marktsentiment
your marktsentimentjouw marktsentiment
every marktsentimentelk marktsentiment
which marktsentiment?welk marktsentiment?
a big marktsentiment / the big marktsentimenteen groot marktsentiment, het grote marktsentiment