People who had Grand Armee in their stable will have $850,000 to buy another horse.

Chuck, in answer to your query, any horse that you have bought remains at that exact same value for as long as you have it in your stable, no matter whether it's value goes up or down.

And if you decide to sell it, you have that exact same amount to spend on a new horse.

Of course, some people didn't spend their whole $10,000,000 at the start of the comp, so they'll have more money to spend on new horses next week if they wish.