In my mind, that is a HUGE risk! Personally, I’d feel terrible if I let a college education slip through my grasp in the stock market! Who knows what will happen with the market, much less just two stocks. I’d sell now, pay the taxes, and put the money in Treasury bills at TreasuryDirect.gov. (In fact, that’s what I did with my son’s college fund years ago when I realized I had “enough”! But it’s up to you.