the smart money
1. if the smart money is on something happening, or on someone or something being successful, people with a good knowledge about it believe that is what will happen Hurt's best-actor award surprised even Hollywood insiders - the smart money was on Jack Nicholson. The smart money says that the industry will end up drastically reduced.
2. money which is spent by people who are very successful in business The smart money is coming back into mortgages as the best investment right now.