No, they've definitely put more pressure on this before:
09/10/09 2,096,053 2,965,348 70.68%
09/14/09 4,434,290 4,933,558 89.88%
01/07/10 8,648,767 9,645,960 89.66%
01/19/10 6,880,747 8,923,605 77.11%
01/21/10 7,167,716 8,387,451 85.46%
01/22/10 25,174,440 28,832,018 87.31%
02/02/10 5,355,233 7,289,605 73.46%
02/11/10 7,885,204 11,076,827 71.19%
02/22/10 4,778,000 5,711,944 83.65%