De or het marktverstoring?

The correct Dutch article is:

de marktverstoring

Rule Words ending in -ing: almost always de. See the rule

How to use marktverstoring

the marktverstoringde marktverstoring
this marktverstoringdeze marktverstoring
that marktverstoringdie marktverstoring
our marktverstoringonze marktverstoring
your marktverstoringjouw marktverstoring
every marktverstoringelke marktverstoring
which marktverstoring?welke marktverstoring?
a big marktverstoring / the big marktverstoringeen grote marktverstoring, de grote marktverstoring