Click Share / Analytics Terms Click Share Click share is a pay-per-click (PPC) advertising metric that shows the percentage of clicks your ad received compared to the total number of clicks it was eligible to receive. It helps advertisers understand how often their ads are capturing available user attention in a given auction. A high click share means your ad is securing a strong share of potential traffic, while a low click share suggests there may be opportunities to improve visibility, bidding or relevance. Click share is calculated by dividing the number of actual ad clicks by the estimated number of total eligible clicks. For example, if your ad earned 500 clicks out of 1,000 possible clicks in a search auction, your click share would be 50 percent. Unlike click-through rate (CTR), which measures engagement per impression, click share focuses on competitive performance. It provides insight into how often your ads are chosen when they could have been, based on targeting, budget and ad rank. Advertisers use click share to assess campaign health and discover where to invest for greater impact. If your click share is low, it could be due to limited budget, low ad rank or strong competition. Improving click share might involve increasing bids, enhancing ad copy, refining keyword targeting or raising your quality score. In Google Ads, click share is available for Search, Shopping and Performance Max campaigns. Tracking it over time helps advertisers identify growth potential, especially when impressions are strong but clicks are underperforming. It is a valuable tool for optimising visibility and staying competitive in crowded search landscapes.