STRASMORE/EXPLORE 2,170 QUERIES

The same twelve prints, ranked by venue clock and by tape clock

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 2026-08-14, from Market Data Timestamps: SIP vs Exchange Clocks.

as of table 12×7read in context →
The same twelve prints, ranked by venue clock and by tape clock — 12 rows by 7 columns, computed from US exchange, SIP and OPRA data.
print_labelvenue_clock_ettape_clock_etparticipant_ranksip_rankplaces_movedsip_lag_delta_us
P0610:44:17.16071210:44:17.1610186126305.7
P0710:44:17.16071410:44:17.160999761284.4
P0810:44:17.16071410:44:17.160999871284.5
P0910:44:17.16071410:44:17.160999981284.7
P1010:44:17.16071410:44:17.1609991091284.9
P1110:44:17.16071410:44:17.16100811101293.4
P1210:44:17.16071410:44:17.16100812111293.5
P0110:44:17.16058010:44:17.16059511014.9
P0210:44:17.16058010:44:17.16059822017.6
P0310:44:17.16058010:44:17.16059833017.7
P0410:44:17.16070610:44:17.160900440193.7
P0510:44:17.16070610:44:17.160900550193.8
Rows × columns
12 × 7
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 The same twelve prints, ranked by venue clock and by tape clock, derived from the stored result.
ColumnTypeRangeNotes
print_label text 12 distinct values (P01, P02, P03…)
venue_clock_et text 4 distinct values
tape_clock_et text 6 distinct values
participant_rank number 1 to 12
sip_rank number 1 to 12
places_moved number 0 to 6
sip_lag_delta_us number 14.9 to 305.7

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
    burst AS
    (
        SELECT intDiv(toUnixTimestamp64Nano(participant_timestamp), 10000000) AS slice_10ms
        FROM global_markets.stocks_trades
        WHERE ticker = 'AAPL'
          AND sip_timestamp >= '2026-06-10 14:30:00'
          AND sip_timestamp <  '2026-06-10 15:00:00'
          AND ifNull(toUnixTimestamp64Nano(trf_timestamp), 0) = 0
        GROUP BY slice_10ms
        ORDER BY count() DESC, slice_10ms ASC
        LIMIT 1
    ),
    sample AS
    (
        SELECT
            participant_timestamp,
            sip_timestamp,
            toUInt64(sequence_number) AS seq,
            toUnixTimestamp64Nano(sip_timestamp)
              - toUnixTimestamp64Nano(participant_timestamp) AS lag_ns
        FROM global_markets.stocks_trades
        WHERE ticker = 'AAPL'
          AND sip_timestamp >= '2026-06-10 14:30:00'
          AND sip_timestamp <  '2026-06-10 15:00:00'
          AND ifNull(toUnixTimestamp64Nano(trf_timestamp), 0) = 0
          AND intDiv(toUnixTimestamp64Nano(participant_timestamp), 10000000)
              IN (SELECT slice_10ms FROM burst)
        ORDER BY participant_timestamp ASC, seq ASC
        LIMIT 12
    ),
    ranked AS
    (
        SELECT
            participant_timestamp,
            sip_timestamp,
            lag_ns,
            row_number() OVER (ORDER BY participant_timestamp ASC, seq ASC) AS participant_rank,
            row_number() OVER (ORDER BY sip_timestamp ASC, seq ASC)         AS sip_rank
        FROM sample
    )
SELECT
    concat('P', leftPad(toString(participant_rank), 2, '0')) AS print_label,
    concat(formatDateTime(toTimeZone(participant_timestamp, 'America/New_York'), '%H:%i:%S'), '.',
           leftPad(toString(intDiv(toUnixTimestamp64Nano(participant_timestamp) % 1000000000, 1000)), 6, '0')) AS venue_clock_et,
    concat(formatDateTime(toTimeZone(sip_timestamp, 'America/New_York'), '%H:%i:%S'), '.',
           leftPad(toString(intDiv(toUnixTimestamp64Nano(sip_timestamp) % 1000000000, 1000)), 6, '0'))         AS tape_clock_et,
    participant_rank,
    sip_rank,
    abs(toInt32(sip_rank) - toInt32(participant_rank)) AS places_moved,
    round(lag_ns / 1000, 1)                            AS sip_lag_delta_us
FROM ranked
ORDER BY places_moved DESC, participant_rank ASC

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