Since hitting the web, "the long wait" has been mentioned in 192,000 Facebook updates, 10,000 tweets and 190 blog posts. Most of these have been in English, but Portuguese, Spanish and Danish people also picked up on it.
Last week's number one, GTA V has slumped to fifth position, picking up 31,330 shares.
The chart, produced in conjunction with Unruly, ranks ads according to the number of times they have been shared on Facebook, Twitter and the blogosphere during the past seven days. Ads launched more than 30 days ago are not included.
1. John Lewis 'the long wait' by Adam & Eve
183,060 shares this week
All time: 202,637 shares
All time: 403,049 shares
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Starting next year, YouTube will stop allowing the 30-second unskippable ad and will focus instead on shorter formats.
"This girl can" was based on a powerful insight: that the fear of judgement by others is the primary barrier holding women back from participating in sport.