STRASMORE/EXPLORE 2,170 QUERIES

AAPL prints by distance from the midpoint: share of volume and 60 second markout

Answered against 22 years of US equities and 12 years of US options data and published with the query that produced it. This result is stored as of 2026-08-13, from Why Market Makers Lose Money: Adverse Selection.

as of ranking 4×3read in context →
AAPL prints by distance from the midpoint: share of volume and 60 second markout — 4 rows by 3 columns, computed from US exchange, SIP and OPRA data.
distance_from_midshare_of_volume_pctedge_after_60s_mils
0.5 cents or less27.580.95
0.5 to 1 cent18.057.56
1 to 2 cents21.1812.49
over 2 cents33.1946.86
Rows × columns
4 × 3
Computed
Completeness
No missing values
Source
US exchange, SIP and OPRA market data
Licence
Strasmore terms · free, no signup
Formats
JSON · CSV · the SQL below

What each column holds

Column definitions for AAPL prints by distance from the midpoint: share of volume and 60 second markout, derived from the stored result.
ColumnTypeRangeNotes
distance_from_mid text 4 distinct values
share_of_volume_pct number 18.05 to 33.19 percent
edge_after_60s_mils number 0.95 to 46.86

Computed from Strasmore's warehouse of US exchange, SIP and OPRA market data. Equity prices are delayed; options greeks and implied volatility are end-of-day. This result is stored, not recomputed on load — it is exactly the numbers that were returned on , and the query below is what returned them.

the exact SQL behind every number
WITH
  qs AS (
    SELECT toUnixTimestamp(toDateTime(sip_timestamp)) AS ts,
           avg((toFloat64(bid_price) + toFloat64(ask_price)) / 2) AS mid
    FROM global_markets.cache_stocks_quotes
    WHERE ticker = 'AAPL'
      AND sip_timestamp >= '2026-05-14 14:00:00'
      AND sip_timestamp <  '2026-05-14 17:06:00'
      AND bid_price > 0 AND ask_price > bid_price
    GROUP BY ts
  ),
  fills AS (
    SELECT t.ts AS ts, t.px AS px, t.shares AS shares, q.mid AS mid_at_fill,
           if(t.px > q.mid, 1, -1) AS taker_side
    FROM (
      SELECT toUnixTimestamp(toDateTime(sip_timestamp)) AS ts,
             toFloat64(price) AS px, toUInt64(size) AS shares
      FROM global_markets.stocks_trades
      WHERE ticker = 'AAPL'
        AND sip_timestamp >= '2026-05-14 14:00:00'
        AND sip_timestamp <  '2026-05-14 17:00:00'
        AND size > 0
    ) AS t
    INNER JOIN qs AS q ON q.ts = t.ts
    WHERE t.px != q.mid AND abs(t.px / q.mid - 1) < 0.02
  )
SELECT
  multiIf(s.cents <= 0.5, '0.5 cents or less',
          s.cents <= 1.0, '0.5 to 1 cent',
          s.cents <= 2.0, '1 to 2 cents',
          'over 2 cents')                                  AS distance_from_mid,
  round(100 * sum(s.shares) / sum(sum(s.shares)) OVER (), 2) AS share_of_volume_pct,
  round(1000 * avg(s.taker_side * (s.px - f.mid)), 2)        AS edge_after_60s_mils
FROM (
  SELECT *, toUInt32(ts + 60) AS future_ts, abs(px - mid_at_fill) * 100 AS cents
  FROM fills
) AS s
INNER JOIN qs AS f ON f.ts = s.future_ts
GROUP BY distance_from_mid
ORDER BY min(s.cents)

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