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Index roots vs ETF roots: contracts traded on July 6, 2026, with exercise style

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 2026-07-31, from American vs European Options Explained.

as of ranking 8×3read in context →
Index roots vs ETF roots: contracts traded on July 6, 2026, with exercise style — 8 rows by 3 columns, computed from US exchange, SIP and OPRA data.
productexercise_stylecontracts_mm
SPYAmerican style, share settled12.1
QQQAmerican style, share settled6.88
SPXWEuropean style, cash settled3.65
IWMAmerican style, share settled1.35
SPXEuropean style, cash settled0.19
NDXPEuropean style, cash settled0.08
RUTEuropean style, cash settled0.03
NDXEuropean style, cash settled0
Rows × columns
8 × 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 Index roots vs ETF roots: contracts traded on July 6, 2026, with exercise style, derived from the stored result.
ColumnTypeRangeNotes
product text 8 distinct values (IWM, NDX, NDXP…)
exercise_style text 2 distinct values
contracts_mm number 0 to 12.1 count

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 
SELECT root AS product,
       transform(root,
                 ['SPX', 'SPXW', 'NDX', 'NDXP', 'RUT', 'SPY', 'QQQ', 'IWM'],
                 ['European style, cash settled', 'European style, cash settled',
                  'European style, cash settled', 'European style, cash settled',
                  'European style, cash settled', 'American style, share settled',
                  'American style, share settled', 'American style, share settled'],
                 'Other') AS exercise_style,
       round(sum(volume) / 1e6, 2) AS contracts_mm
FROM (
    SELECT substring(ticker, 3, length(ticker) - 17) AS root,
           toFloat64(volume) AS volume
    FROM global_markets.options_minute_aggs
    WHERE window_start >= toDateTime('2026-07-06 08:00:00')
      AND window_start < toDateTime('2026-07-07 04:00:00')
      AND toDate(toTimeZone(window_start, 'America/New_York')) = toDate('2026-07-06')
)
WHERE root IN ('SPX', 'SPXW', 'NDX', 'NDXP', 'RUT', 'SPY', 'QQQ', 'IWM')
GROUP BY product, exercise_style
ORDER BY contracts_mm DESC

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