回复：cashed stock be a part of child support

It will depends how much your ex made and is making.

If he made tons of money from the stock, you should consult a lawyer who is very good at this kind of thing.

If he just made decent money and is having decent income, from what I read from this forum, you can ask judge for child support adjustment.

If he is a reasonable person and cares about his kids, his income is pretty good, and you don't want too much trouble, ask him to setup a college saving trust (or 529 plan or UTMA) under your kids' name.