When the stock market plunged yesterday afternoon, CNBC recorded a dramatic boost in viewership.

Between 3 and 5pm, CNBC averaged 183,000 demo viewers, topping both FNC (154,000) and CNN (125,000).

Jim Cramer had some of its highest viewership ever, with 162,000 demo at 6pm and 154,000 at 11pm.

On The Money averaged 148,000 at 7 and 109,000 at 10.

And Fast Money had its best demo rating ever at 8pm, 151,000, beating Paula Zahn's 113,000...

> Also: CNBC out-rated CNN during market hours (9:30 to 4pm) for the second consecutive day in the demo (146,000 vs. 127,000)...