{"slug":"who-are-the-biggest-market-makers","qid":"quote_snapshot","label":"Quoted spread and quote traffic over fifteen minutes, June 10, 2026","post_title":"Who Are the Biggest Market Makers?","post_url":"/blog/who-are-the-biggest-market-makers#q-quote_snapshot","columns":["symbol","avg_spread_cents","avg_spread_bps","quote_count","quote_updates_pretty"],"rows":[{"symbol":"SPY","avg_spread_cents":2.82,"avg_spread_bps":0.39,"quote_count":200350,"quote_updates_pretty":"200.35 thousand"},{"symbol":"AAPL","avg_spread_cents":2.32,"avg_spread_bps":0.79,"quote_count":47536,"quote_updates_pretty":"47.54 thousand"},{"symbol":"NVDA","avg_spread_cents":2.13,"avg_spread_bps":1.05,"quote_count":56634,"quote_updates_pretty":"56.63 thousand"},{"symbol":"KO","avg_spread_cents":1.14,"avg_spread_bps":1.36,"quote_count":13544,"quote_updates_pretty":"13.54 thousand"},{"symbol":"MSFT","avg_spread_cents":7.53,"avg_spread_bps":1.87,"quote_count":8429,"quote_updates_pretty":"8.43 thousand"}],"shape":"table","sql":"SELECT\n    ticker                                                                                        AS symbol,\n    round(avg(toFloat64(ask_price - bid_price)) * 100, 2)                                         AS avg_spread_cents,\n    round(avg(10000 * toFloat64(ask_price - bid_price) / (toFloat64(ask_price + bid_price) / 2)), 2) AS avg_spread_bps,\n    count()                                                                                       AS quote_count,\n    formatReadableQuantity(count())                                                               AS quote_updates_pretty\nFROM global_markets.cache_stocks_quotes\nWHERE ticker IN ('SPY', 'AAPL', 'NVDA', 'MSFT', 'KO')\n  AND sip_timestamp >= '2026-06-10 18:00:00'\n  AND sip_timestamp <  '2026-06-10 18:15:00'\n  AND bid_price > 0\n  AND ask_price > bid_price\nGROUP BY symbol\nORDER BY avg_spread_bps","computed_at":"2026-08-11T15:51:11.694738+00:00","elapsed":0.002065826}