DB. Let me know the domain and I'll have a look.
There's often a discrepancy between a bid price on Google and what you actually get paid by Google, anyone with Adwords can tell you that. It's always open to so much conjecture as to why. We don't cap any payments which come to us from Goog, it just seems that they're not always as high as they should be for financial ads. I have a feeling this is because Google fears that a very large number of clicks on financial ads are fraud clicks, so they only make sure that the very, very purest get through and get paid as highly as they should. This is pure speculation of course, but, of the many, many finance clicks on our system every day, it would seem to be the exception to the rule that there are mega clicks on every finance domain.
DB, looking at your portfolio, I think you can ignore that first sentence of this post, I think I've found it

. As pretty much 1/3 of your clicks come form this domain, any drop in advertising on that one domain would lead to an apparent drop in your entire portoflio's performance.
If you look at the user searches on the domain (click on the domain, then settings), then you can see that the 2nd-7th searches are all very specific and are all being searched a lot. My theory is that the advertising on these specific searches has dropped. As these are clearly very popular searches on the domain, this would lead to a drop in your domain's earnings.
You might want to try blocking these 6 searches and leaving the other, less specific, terms on the page. It will probably lead to a drop in CTR, but may also increase your PPC. If the experiment doesn't work, then you can always activate those user searches again.
Hope this helps.
Good evening, all.
Ed