According to [https://support.google.com/google-ads/answer/2579754?ctx=tltp#outranking_share&zippy=%2Cauction-insights-report-for-search-campaigns%2Coverlap-rate%2Coutranking-share](https://support.google.com/google-ads/answer/2579754?ctx=tltp#outranking_share&zippy=%2Cauction-insights-report-for-search-campaigns%2Coverlap-rate%2Coutranking-share)
**Outranking share tells you how often your ad ranked higher in the auction than another advertiser’s ad, or if your ad showed when theirs didn’t.**
**For example, if one of the other advertisers in your auction insights report is showing “20%” in the “Outranking share” column, this means that your ad won over the other advertiser’s ad. It can also mean that your ad showed when the other advertiser’s ad didn’t for 2 out of every 10 impressions that you were eligible to receive.**
The key expression here is “that you were eligible to receive”. So (I’m going to round it up) you appear 4 times out of 10 when your ads compete, either by appearing or appearing on a superior position.
This said, I understand where you’re coming from because the Outranking Share is easily understood for how many times we were outranked and not the other way around.