What happened to Yahoo SM last week?

[skuba]

Hi everybody,
I was doing my paid search reports this morning for last week and was surprised with YSM numbers.
Performance has been down for the 2 accounts that I was reporting.

On the week prior we had a return on ad spend of 500%, but then last week, it went down to 190%.?

In average, the ROAS had been at least over 350%, but in a week, suddenly dropped to 190%?

Did anybody here experience anything like that last week or recently on yahoo?

Thanks for sharing.

[mike_ppc]

Yes, our performance decreased a lot durig last two weeks. Something is very wrong there... click fraud and poor quality traffic. If this is the "launch" they are so proud about... I'd prefer old Overture..

[biking4jesus]

i have cut my budget on overture by 20% because of the poor performance lately.