DOW closed at 7,949.09 on 1/20/09
Dow closed at 19,827.25 on 1/20/17, covering all of Obama's time

For DJT to achieve the same numerical increase it needs get to 31,705.41. To accomplish the same percentage increase it will need to hit 49,454.30. Got a ways to go either way before he can claim accomplishing the same as his predecessor.