The same stock and the same last price, twelve different anchors (AAPL)

WITH
    monthly AS (
        SELECT
            toStartOfMonth(date)                     AS m,
            sum(toFloat64(vwap) * toFloat64(volume)) AS pv,
            sum(toFloat64(volume))                   AS vol
        FROM global_markets.stocks_daily_aggs
        WHERE ticker = 'AAPL'
          AND date >= '2025-07-01'
          AND date <= '2026-06-30'
        GROUP BY m
    ),
    anchored AS (
        SELECT
            m,
            sum(pv)  OVER (ORDER BY m ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
          / sum(vol) OVER (ORDER BY m ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING) AS avwap
        FROM monthly
    ),
    final_close AS (
        SELECT toFloat64(argMax(close, date)) AS last_close
        FROM global_markets.stocks_daily_aggs
        WHERE ticker = 'AAPL'
          AND date >= '2026-06-01'
          AND date <= '2026-06-30'
    )
SELECT
    formatDateTime(a.m, '%b %Y')                 AS anchor_from,
    round(a.avwap, 2)                            AS anchored_vwap,
    round(100 * (f.last_close / a.avwap - 1), 2) AS close_vs_avwap_pct
FROM anchored AS a
CROSS JOIN final_close AS f
ORDER BY a.m