{"slug":"microstructure-2026-06-29","qid":"quote_leaderboard","label":"NBBO quote updates for eight heavily-quoted tickers (millions)","post_title":"Microstructure Deep-Dive: June 29, 2026","post_url":"/blog/microstructure-2026-06-29#q-quote_leaderboard","columns":["ticker","updates_m"],"rows":[{"ticker":"QQQ","updates_m":5.23},{"ticker":"SPY","updates_m":5.07},{"ticker":"TQQQ","updates_m":3.91},{"ticker":"IWM","updates_m":3.4},{"ticker":"SQQQ","updates_m":3.29},{"ticker":"NVDA","updates_m":1.8},{"ticker":"AAPL","updates_m":1.13},{"ticker":"TSLA","updates_m":0.59}],"shape":"ranking","sql":"SELECT ticker, round(count() / 1e6, 2) AS updates_m\nFROM global_markets.cache_stocks_quotes\nWHERE ticker IN ('QQQ', 'SPY', 'TQQQ', 'IWM', 'SQQQ', 'NVDA', 'AAPL', 'TSLA')\n  AND sip_timestamp >= '2026-06-29 00:00:00' AND sip_timestamp < '2026-06-30 00:00:00'\nGROUP BY ticker\nORDER BY updates_m DESC","computed_at":"2026-07-26T06:08:57.701663+00:00","elapsed":5.051730814}