{"slug":"the-january-effect","qid":"survivorship_universe","label":"Distinct symbols printing at least one session, by year","post_title":"The January Effect: Does It Still Work?","post_url":"/blog/the-january-effect#q-survivorship_universe","columns":["year","listings_on_tape"],"rows":[{"year":"2006","listings_on_tape":9450},{"year":"2007","listings_on_tape":9798},{"year":"2008","listings_on_tape":9356},{"year":"2009","listings_on_tape":8888},{"year":"2010","listings_on_tape":8870},{"year":"2011","listings_on_tape":8728},{"year":"2012","listings_on_tape":8826},{"year":"2013","listings_on_tape":8795},{"year":"2014","listings_on_tape":8977},{"year":"2015","listings_on_tape":9170},{"year":"2016","listings_on_tape":9316},{"year":"2017","listings_on_tape":9458},{"year":"2018","listings_on_tape":9646},{"year":"2019","listings_on_tape":9900},{"year":"2020","listings_on_tape":10578},{"year":"2021","listings_on_tape":13155},{"year":"2022","listings_on_tape":13332},{"year":"2023","listings_on_tape":13048},{"year":"2024","listings_on_tape":12647},{"year":"2025","listings_on_tape":13423}],"shape":"ranking","sql":"SELECT\n    toString(toYear(date)) AS year,\n    uniqExact(ticker)      AS listings_on_tape\nFROM global_markets.stocks_daily_aggs\nWHERE date >= '2006-01-01'\n  AND date <  '2026-01-01'\nGROUP BY year\nORDER BY year","computed_at":"2026-08-11T15:23:02.596941+00:00","elapsed":0.001446201}