# MASK-USDT-SWAP on Okx — instrument statistics

> Machine-readable twin of https://cryptostruct.com/analyze/instrument/240100 (an interactive dashboard that needs JavaScript).
> This document: https://cryptostruct.com/analyze/instrument/240100.md · Source: CryptoStruct's own tick-by-tick recordings.

MASK-USDT-SWAP is a perpetual instrument on Okx (MASK/USDT). Master data, archive coverage and daily market statistics below.

## Instrument master data

| Field | Value |
| --- | --- |
| Instrument | MASK-USDT-SWAP (id 240100) |
| Exchange | Okx (`okex`) |
| Class | perpetual · linear |
| Pair | MASK/USDT |
| State | open |
| Tick size | 0.0001 |
| Lot size | 1 |
| Minimum order | 1 MASK |
| Minimum notional | — |
| Funding interval | 8 h |
| Listed | 2021-03-04 |

Exchange-published rules as synced on 2026-10-07; venues change them — check the venue before trading.

## Archive coverage

1,088 recorded UTC days from 2023-10-11 to 2026-10-06 — every trade, every order-book update at full depth and every quote of the venue's feed, one zstd-compressed JSON-lines file per day.

## Daily market statistics (last 30 recorded days)

Averages over these days: $666,500 turnover and 8,040 trades per day, quoted spread 6.65 bps, top-of-book depth $88, top-20 depth $17,825 (mid-side total notional over the top 20 levels).

| UTC day | Trades | Turnover USD | Avg spread bps | Top-of-book depth USD | Top-20 depth USD |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | 6,060 | $538,901 | 5.53 | $79 | $19,742 |
| 2026-10-05 | 4,730 | $458,652 | 5.93 | $106 | $21,191 |
| 2026-10-04 | 5,160 | $562,574 | 6.1 | $109 | $20,814 |
| 2026-10-03 | 7,497 | $727,096 | 6.33 | $83 | $17,833 |
| 2026-10-02 | 20,374 | $2,020,163 | 7.44 | $129 | $21,171 |
| 2026-10-01 | 7,658 | $372,213 | 6.66 | $116 | $24,975 |
| 2026-09-30 | 8,476 | $592,836 | 8.17 | $132 | $24,604 |
| 2026-09-29 | 8,037 | $444,428 | 6.48 | $122 | $23,397 |
| 2026-09-28 | 8,344 | $797,833 | 7.53 | $134 | $23,491 |
| 2026-09-27 | 6,208 | $610,960 | 6.21 | $91 | $23,225 |
| 2026-09-26 | 5,019 | $600,693 | 7.89 | $137 | $23,186 |
| 2026-09-25 | 4,991 | $431,313 | 6.71 | $95 | $23,325 |
| 2026-09-24 | 7,329 | $529,873 | 7.82 | $120 | $20,813 |
| 2026-09-23 | 13,163 | $1,158,798 | 6.45 | $90 | $17,323 |
| 2026-09-22 | 10,017 | $636,359 | 6.71 | $69 | $16,076 |
| 2026-09-21 | 25,839 | $3,132,758 | 7.08 | $88 | $14,814 |
| 2026-09-20 | 5,537 | $317,380 | 8.22 | $57 | $8,761 |
| 2026-09-19 | 6,315 | $425,032 | 6.57 | $54 | $14,193 |
| 2026-09-18 | 5,641 | $386,088 | 7.33 | $86 | $20,978 |
| 2026-09-17 | 4,148 | $270,811 | 5.39 | $61 | $14,585 |
| 2026-09-16 | 7,095 | $405,597 | 6.78 | $63 | $13,220 |
| 2026-09-15 | 11,927 | $701,551 | 5.77 | $56 | $13,007 |
| 2026-09-14 | 5,717 | $359,862 | 5.95 | $71 | $14,333 |
| 2026-09-13 | 7,381 | $648,892 | 6.43 | $70 | $14,910 |
| 2026-09-12 | 8,350 | $733,156 | 6.21 | $64 | $15,490 |
| 2026-09-11 | 6,626 | $360,430 | 6.46 | $57 | $10,641 |
| 2026-09-10 | 6,630 | $389,863 | 6.48 | $61 | $12,450 |
| 2026-09-09 | 6,722 | $546,820 | 6.39 | $72 | $15,148 |
| 2026-09-08 | 4,515 | $351,265 | 6.08 | $72 | $15,180 |
| 2026-09-07 | 5,681 | $482,789 | 6.49 | $93 | $15,878 |

## Get the data

- Rolling 24 h of 1-minute statistics as CSV (free, no auth): https://cryptostruct.com/api/analyze/instrument-last-24h-minutes/240100?format=csv
- Full tick-by-tick day files, €1 per instrument-day, no subscription, no account: https://cryptostruct.com/shop?i=240100
- Free sample days: https://cryptostruct.com/download · MCP server for agents: https://cryptostruct.com/mcp