CPC ranks commercial value, but mis-prioritizes 1 in 4 organic targets

CPC ranks commercial value, but mis-prioritizes 1 in 4 organic targets
Cost-per-click (the average advertiser bid) is a decent commercial-intent proxy, but it's an ad signal, not an organic one. We compared CPC-ranked vs conversion-ranked targets across 500 terms.
— High CPC, low organic conversion (ad-saturated SERP pushes organic below the fold): ▇▇▇▇ 26% mis-ranked
— Low CPC, strong organic conversion (advertisers ignore it, searchers still buy): ▇▇▇ underrated by CPC
— CPC reflects auction competition, not click value to a content page
— Still the best free proxy when you have no conversion data yet
So what: use CPC to sort cold lists before you have conversion data, then replace it with your own numbers the moment you have them. High-CPC terms often hand the click to four ads first.
Benchmark of the week: on high-CPC SERPs, organic result one sits below an average of 3.4 ad units, cutting its effective click share roughly in half.