The Investor was a champion halter horse, he's actually one of the top, and he's also half brother to the very very famous Zippo Pine Bar, they were both born the same year. Pretty Buck was a world champion sire, and came from the Waggoner Ranch, same as Poco Bueno. If you look further back at Pretty Buck's lines though, He goes back to Peter McCue and Old Fred, two founding sires. And go way far back he's got Shiloh and Steel Dust, two famous racehorses of their time..
And through The Invester you also have Leo, another famous racehorse and sire.
So all in all he's got quite good bloodlines