Top-of-book messages against prints, 10:00 to 10:30 a.m. ET, June 16, 2026

WITH
    quote_load AS
    (
        SELECT ticker, count() AS quote_messages
        FROM global_markets.cache_stocks_quotes
        WHERE ticker IN ('SPY', 'AAPL', 'NVDA', 'MSFT', 'KO')
          AND sip_timestamp >= '2026-06-16 14:00:00'
          AND sip_timestamp <  '2026-06-16 14:30:00'
        GROUP BY ticker
    ),
    trade_load AS
    (
        SELECT ticker, count() AS trades
        FROM global_markets.stocks_trades
        WHERE ticker IN ('SPY', 'AAPL', 'NVDA', 'MSFT', 'KO')
          AND sip_timestamp >= '2026-06-16 14:00:00'
          AND sip_timestamp <  '2026-06-16 14:30:00'
        GROUP BY ticker
    )
SELECT
    q.ticker                              AS ticker,
    round(q.quote_messages / 1000, 1)     AS quote_messages_thousands,
    round(t.trades / 1000, 2)             AS trades_thousands,
    round(q.quote_messages / t.trades, 1) AS quotes_per_trade_ratio
FROM quote_load AS q
INNER JOIN trade_load AS t ON t.ticker = q.ticker
ORDER BY quotes_per_trade_ratio DESC