The Final ratings for Supernatural's episode "Ouroboros" are posted. Overnight and Final Ratings are from Showbuzz Daily Live+3 Day ratings from Programming Insider.
 
  Live Ratings (Overnights) Final Same Day Live +3 Day Live +7 Day  
18-49 0.4 0.4 0.62(+64%) 0.7(+83%)  
Total Viewers 1.299 1.277 1.960(+53%) 2.168M(+70%)  
Ranking of CW Shows for March 4-March 10 2019
 
Show Live +SD 18-49 Live +SD Total  
       
Flash 0.6 1.671  
Supernatural 0.4 1.277  
Supergirl 0.3 1.048  
Roswell 0.3 1.018  
Riverdale 0.3 0.921  
Arrow 0.2 0.887  
Legacies 0.2 0.814  
Black Lightening 0.2 0.77  
Charmed 0.2 0.739  
All American 0.2 0.588  
 
These ratings put us at #2 in both the 18-49 demographic and total viewers.
 
For the ratings for all episodes of Supernatural check out our all episodes ratings page.