I would guess that the primary thing driving ITIC's price is YOU!
No, seriously, my guess is that it is a good company and is selling at about five times earnings. In addition, the other title companies have been stong lately and some of them have made new highs, including FAF.
Have you ever noticed stocks propensities to make their highs right at the peak of danger? That is really my guess of what is going on. Look at what has happened to some of the home builders, particularly TOL. When they "warned", the stock lost 40%. There went the growth premium.
OK, I might get tempted at a price somewhat north of 23, and I am guilty of serial overpaying for shares of this company, but I haven't spent THAT much--"just" $400~500k (I'm not sure of the exact total) to date.
I stand ready to defend the price to the best of my ability with more money should it drop too much (in my opinion).