ZEC/USD (ZECUSD) Historical Market Data — Every Tick, €1 a Day
Every message of each venue's ZEC/USD feed — tick-by-tick trades, Level-2 order-book updates at full depth and quotes, not candles — across 5 exchanges and 5 instruments (spot, perpetual and dated futures), October 2023 – present, captured co-located at each venue with nanosecond timestamps in one schema, 8.75 TB raw, with 1-minute OHLCV derived from it. Any instrument-day is €1 — buy as a guest, download instantly.
Every ZEC/USD print, one schema
Every ZEC/USD print — price, size, side and exchange timestamp — at full resolution, not sampled.
Every Level-2 snapshot and update at the venue's full book depth, plus top-of-book where the venue publishes it — nanosecond venue and receive timestamps, so ZEC/USD liquidity and slippage replay exactly.
Open/high/low/close, volume and VWAP per minute — ready for backtests and ZEC/USD signal research.
Bid-ask spreads in bps and ticks, normalized into one schema across every venue for apples-to-apples ZEC/USD comparison.
ZEC/USD across 5 exchanges
Every venue that lists ZEC/USD in the archive, ranked by recorded size, with the instrument class each one carries — spot, perpetual and dated futures. Open a venue's page for its full catalog, or jump straight to an instrument's day files.
| Venue | Spot | Perpetual | Futures | Recorded |
|---|---|---|---|---|
| Kraken Futures | — | PF_ZECUSD since December 2023 · 1,028 days · 3.55 TB | — | 3.55 TB |
| Coinbase | ZEC-USD since October 2023 · 1,009 days · 2.88 TB | — | — | 2.88 TB |
| Kraken Spot | ZECUSD since October 2023 · 1,081 days · 1.59 TB | — | — | 1.59 TB |
| Bitfinex | ZEC/USD since November 2023 · 1,070 days · 598 GB | — | — | 598 GB |
| Okx | — | — | ZEC-USD_UM_XPERP-310530 since May 2026 · 133 days · 151 GB | 151 GB |
One row per venue; each cell names the heaviest instrument of that class with its first recorded day, recorded UTC days and raw (uncompressed) size. Dated futures fold every contract of the venue into one cell.
ZEC/USD spread, depth and turnover per exchange
Where ZEC/USD is tightest, deepest and busiest — average quoted spread, order-book depth and daily turnover per venue, computed from our own recordings. The tick files behind these numbers are the same ones in the shop.
| Venue | Instrument | Avg spread (bps) | Top-of-book depth | Top-20 depth | Turnover / day | Trades / day |
|---|---|---|---|---|---|---|
| Coinbase | ZEC-USD · Spot | 3.33 | $1.5K | $70.3K | $155.4M | 167,174 |
| Kraken Futures | PF_ZECUSD · Perpetual | 5.40 | $1.5K | $251.4K | $47.6M | 44,244 |
| Kraken Spot | ZECUSD · Spot | 3.98 | $4.3K | $104.0K | $46.8M | 35,104 |
| Bitfinex | ZEC/USD · Spot | 19 | $1.2K | $73.5K | $2.2M | 3,963 |
Averages over the recorded days of the 30 days to 2026-10-06, computed from our own order-book and trade recordings. Spread = average quoted spread in basis points; top-of-book depth = mean of best bid and best ask size in USD; top-20 depth = mid-side total notional over the top 20 levels (((bid + ask) / 2) × 20). Ranked by turnover.
ZEC/USD tick size, lot size and contract rules per exchange
The trading rules each venue publishes for its ZEC/USD instrument — tick size, lot size, minimum order, contract size and the funding interval of the perpetuals. Backtests need them to round prices and sizes the way the venue does.
| Venue | Instrument | Tick size | Lot size | Min order · notional | Contract size | Funding | Listed |
|---|---|---|---|---|---|---|---|
| Kraken Futures | PF_ZECUSD Perpetual · linear · stats | 0.01 | 0.01 | 0.01 · — | — | 1 h | 2022-08-24 |
| Coinbase | ZEC-USD Spot · stats | 0.01 | 0.00000001 | — | — | — | — |
| Kraken Spot | ZECUSD Spot · stats | 0.01 | 0.00000001 | 0.01 · — | — | — | — |
| Bitfinex | ZEC/USD Spot · stats | 0.00000001 (price-banded) | 0.00000001 | 0.004 · — | — | — | — |
| Okx | ZEC-USD_UM_XPERP-310530 Futures · linear · stats | 0.01 | 1 | 1 · — | 0.01 ZEC | — | 2026-05-27 |
Exchange-published instrument rules as synced on 2026-10-07: tick size = smallest price step, lot size = smallest quantity step, minimums as order quantity in base units · notional in quote currency, contract size per contract, funding = settlement interval of the perpetual. Every day file carries the same fields in its first line. Venues change these rules — check the venue before trading.
ZECUSD daily prices — PF_ZECUSD on Kraken Futures
Open, high, low, close, trade count and USD turnover per UTC day since 2025-01-11, computed from the recorded tick data of the most-recorded ZEC/USD instrument. Latest close 1,366 on 2026-10-06; highest daily close 1,652 (2026-09-26), lowest 29.12 (2025-03-10).
| Month | Open | Close | Change | High (close) | Low (close) | Trades | Turnover | Avg / day |
|---|---|---|---|---|---|---|---|---|
| Oct 2026 (month to date) | 1,438 | 1,366 | −5.0 % | 1,366 | 1,301 | 147,562 | $205.5M | $34.2M |
| Sep 2026 | 847.62 | 1,438 | +69.7 % | 1,652 | 815.5 | 1,557,200 | $1.6B | $53.6M |
| Aug 2026 | 457.41 | 847.62 | +85.3 % | 852.47 | 461.48 | 801,819 | $730.8M | $23.6M |
| Jul 2026 | 398.93 | 457.41 | +14.7 % | 570.12 | 416.6 | 509,535 | $422.2M | $13.6M |
| Jun 2026 | 568.23 | 398.93 | −29.8 % | 620.8 | 362.02 | 1,067,623 | $1.0B | $33.7M |
| May 2026 | 350.4 | 568.23 | +62.2 % | 672.36 | 385.06 | 1,319,066 | $719.6M | $24.0M |
| Apr 2026 | 248.56 | 350.4 | +41.0 % | 375.02 | 234.32 | 1,282,318 | $411.3M | $13.7M |
| Mar 2026 | 220.18 | 248.56 | +12.9 % | 276.38 | 197.21 | 1,019,039 | $210.7M | $6.8M |
| Feb 2026 | 302.47 | 220.18 | −27.2 % | 323.21 | 204.74 | 2,208,107 | $592.6M | $21.2M |
| Jan 2026 | 511.86 | 302.47 | −40.9 % | 525.51 | 302.47 | 2,781,441 | $677.8M | $21.9M |
| Dec 2025 | 428.18 | 511.86 | +19.5 % | 539.17 | 312.94 | 2,365,173 | $947.3M | $30.6M |
| Nov 2025 | 402.91 | 428.18 | +6.3 % | 698.32 | 410.99 | 1,682,811 | $1.5B | $49.6M |
Over the 30 days to 2026-10-06, PF_ZECUSD on Kraken Futures recorded 1,327,314 trades and $1.4B of USD turnover — about $47.6M per UTC day; the busiest day since 2025-01-11 was 2026-06-05 with $190.2M over 147,716 trades, the busiest full month Sep 2026 at $1.6B.
| UTC day | Open | High | Low | Close | Trades | Turnover |
|---|---|---|---|---|---|---|
| 2026-10-06 | 1,338 | 1,384 | 1,317 | 1,366 | 29,664 | $35.0M |
| 2026-10-05 | 1,353 | 1,366 | 1,277 | 1,338 | 23,157 | $39.6M |
| 2026-10-04 | 1,305 | 1,367 | 1,302 | 1,353 | 22,755 | $24.5M |
| 2026-10-03 | 1,301 | 1,335 | 1,283 | 1,305 | 17,321 | $16.2M |
| 2026-10-02 | 1,335 | 1,413 | 1,265 | 1,301 | 32,340 | $47.5M |
| 2026-10-01 | 1,438 | 1,450 | 1,305 | 1,335 | 22,325 | $42.7M |
| 2026-09-30 | 1,417 | 1,495 | 1,390 | 1,438 | 30,462 | $42.9M |
| 2026-09-29 | 1,483 | 1,489 | 1,358 | 1,417 | 26,586 | $46.4M |
| 2026-09-28 | 1,587 | 1,600 | 1,446 | 1,483 | 39,187 | $44.4M |
| 2026-09-27 | 1,652 | 1,686 | 1,575 | 1,587 | 25,847 | $33.1M |
| 2026-09-26 | 1,556 | 1,697 | 1,516 | 1,652 | 32,209 | $29.4M |
| 2026-09-25 | 1,546 | 1,626 | 1,514 | 1,556 | 27,844 | $49.3M |
| 2026-09-24 | 1,498 | 1,575 | 1,457 | 1,546 | 37,542 | $46.3M |
| 2026-09-23 | 1,629 | 1,684 | 1,477 | 1,498 | 39,081 | $72.1M |
| 2026-09-22 | 1,471 | 1,650 | 1,446 | 1,629 | 59,097 | $60.8M |
| 2026-09-21 | 1,509 | 1,572 | 1,442 | 1,471 | 39,463 | $43.8M |
| 2026-09-20 | 1,471 | 1,535 | 1,428 | 1,509 | 44,340 | $36.0M |
| 2026-09-19 | 1,562 | 1,596 | 1,460 | 1,471 | 31,544 | $36.0M |
| 2026-09-18 | 1,467 | 1,584 | 1,420 | 1,562 | 61,643 | $61.4M |
| 2026-09-17 | 1,336 | 1,512 | 1,325 | 1,467 | 59,079 | $71.7M |
| 2026-09-16 | 1,110 | 1,392 | 1,100 | 1,336 | 64,267 | $78.8M |
| 2026-09-15 | 1,164 | 1,169 | 1,085 | 1,110 | 44,381 | $42.5M |
| 2026-09-14 | 1,062 | 1,225 | 1,042 | 1,164 | 53,689 | $49.1M |
| 2026-09-13 | 1,123 | 1,156 | 1,060 | 1,062 | 46,186 | $30.9M |
| 2026-09-12 | 1,164 | 1,166 | 1,111 | 1,123 | 34,773 | $24.0M |
| 2026-09-11 | 1,079 | 1,223 | 1,053 | 1,164 | 77,366 | $56.6M |
| 2026-09-10 | 1,244 | 1,257 | 1,065 | 1,079 | 76,751 | $64.1M |
| 2026-09-09 | 1,177 | 1,297 | 1,174 | 1,244 | 82,410 | $72.5M |
| 2026-09-08 | 1,140 | 1,212 | 1,114 | 1,177 | 76,107 | $75.8M |
| 2026-09-07 | 1,226 | 1,229 | 1,105 | 1,140 | 69,898 | $55.3M |
| 2026-09-06 | 1,027 | 1,255 | 1,024 | 1,226 | 87,113 | $78.3M |
| 2026-09-05 | 1,023 | 1,045 | 998 | 1,027 | 41,742 | $42.2M |
| 2026-09-04 | 952.43 | 1,049 | 932.77 | 1,023 | 80,364 | $87.5M |
| 2026-09-03 | 815.5 | 980.04 | 804.66 | 952.43 | 79,605 | $86.2M |
| 2026-09-02 | 829.92 | 842.83 | 788.6 | 815.5 | 60,794 | $57.6M |
| 2026-09-01 | 847.62 | 871.01 | 817.18 | 829.92 | 27,830 | $33.8M |
| 2026-08-31 | 835.11 | 871.04 | 805.56 | 847.62 | 28,978 | $33.6M |
| 2026-08-30 | 841.38 | 887.98 | 817.57 | 835.11 | 36,257 | $35.1M |
| 2026-08-29 | 800.67 | 852.68 | 789.35 | 841.38 | 44,614 | $49.1M |
| 2026-08-28 | 810.48 | 824.4 | 775.76 | 800.67 | 29,671 | $19.1M |
| 2026-08-27 | 817.55 | 834.84 | 773.47 | 810.48 | 32,109 | $28.1M |
| 2026-08-26 | 768.42 | 819.17 | 758.63 | 817.55 | 28,737 | $35.9M |
| 2026-08-25 | 829.12 | 867.35 | 751.38 | 768.42 | 48,499 | $50.2M |
| 2026-08-24 | 852.47 | 871.06 | 796.73 | 829.12 | 25,950 | $29.2M |
| 2026-08-23 | 800.27 | 888 | 766 | 852.47 | 26,276 | $42.1M |
| 2026-08-22 | 733.84 | 859.96 | 689.6 | 800.27 | 49,473 | $73.7M |
| 2026-08-21 | 568.72 | 743.3 | 565.9 | 733.84 | 46,200 | $52.5M |
| 2026-08-20 | 565.17 | 596.87 | 549.91 | 568.72 | 37,755 | $25.1M |
| 2026-08-19 | 508.7 | 581.35 | 501.3 | 565.17 | 39,578 | $35.6M |
| 2026-08-18 | 514.2 | 518.84 | 500.33 | 508.7 | 19,841 | $13.0M |
| 2026-08-17 | 485.83 | 522 | 484.71 | 514.2 | 23,604 | $21.1M |
| 2026-08-16 | 487.93 | 495 | 483.92 | 485.83 | 10,453 | $6.8M |
| 2026-08-15 | 492.95 | 499.29 | 485.69 | 487.93 | 16,319 | $11.0M |
| 2026-08-14 | 490.9 | 495.09 | 480.27 | 492.95 | 19,332 | $10.6M |
| 2026-08-13 | 490.55 | 498.96 | 482.5 | 490.9 | 22,151 | $16.9M |
| 2026-08-12 | 481.04 | 499 | 474.25 | 490.55 | 21,385 | $15.4M |
| 2026-08-11 | 496.59 | 497.29 | 466.29 | 481.04 | 19,188 | $13.0M |
| 2026-08-10 | 509.98 | 516.25 | 493.55 | 496.59 | 18,512 | $12.2M |
| 2026-08-09 | 508 | 530.55 | 504.95 | 509.98 | 19,998 | $9.4M |
| 2026-08-08 | 511.28 | 511.9 | 497.52 | 508 | 8,635 | $4.2M |
| 2026-08-07 | 501.93 | 517 | 498.26 | 511.28 | 12,395 | $8.2M |
| 2026-08-06 | 512.12 | 515.45 | 488.33 | 501.93 | 25,163 | $16.5M |
| 2026-08-05 | 506.58 | 525.75 | 502.92 | 512.12 | 21,163 | $11.3M |
| 2026-08-04 | 483.1 | 512 | 477.67 | 506.58 | 24,371 | $17.9M |
| 2026-08-03 | 489.27 | 494.34 | 470.68 | 483.1 | 19,810 | $11.8M |
| 2026-08-02 | 461.48 | 495.68 | 461.42 | 489.27 | 14,634 | $14.4M |
| 2026-08-01 | 457.41 | 473.34 | 457.38 | 461.48 | 10,768 | $7.7M |
| 2026-07-31 | 469.99 | 478.04 | 451.84 | 457.41 | 10,578 | $9.9M |
| 2026-07-30 | 467.19 | 479.9 | 463.55 | 469.99 | 10,676 | $7.9M |
| 2026-07-29 | 465.48 | 475.01 | 451.4 | 467.19 | 12,104 | $9.3M |
| 2026-07-28 | 476.61 | 480.06 | 457.16 | 465.48 | 12,620 | $9.3M |
| 2026-07-27 | 508.24 | 509.57 | 474.04 | 476.61 | 16,188 | $12.8M |
| 2026-07-26 | 485.27 | 509.72 | 484.77 | 508.24 | 6,717 | $5.3M |
| 2026-07-25 | 488.56 | 490.18 | 473.01 | 485.27 | 9,868 | $8.2M |
| 2026-07-24 | 504.52 | 514.31 | 483.64 | 488.56 | 9,788 | $7.1M |
| 2026-07-23 | 515.07 | 523.01 | 496.2 | 504.52 | 11,649 | $10.8M |
| 2026-07-22 | 532.26 | 538 | 505.76 | 515.07 | 13,460 | $10.0M |
| 2026-07-21 | 543.8 | 556.11 | 527 | 532.26 | 18,326 | $16.0M |
| 2026-07-20 | 547.84 | 557.37 | 525.18 | 543.8 | 17,978 | $17.9M |
| 2026-07-19 | 558.26 | 567.64 | 541.73 | 547.84 | 16,668 | $13.5M |
| 2026-07-18 | 547.44 | 563.57 | 534.8 | 558.26 | 18,237 | $18.0M |
| 2026-07-17 | 523.44 | 556.48 | 523.39 | 547.44 | 27,547 | $24.8M |
| 2026-07-16 | 570.12 | 573.93 | 523.44 | 523.44 | 36,217 | $27.6M |
| 2026-07-15 | 563.97 | 589.18 | 549.73 | 570.12 | 22,073 | $20.5M |
| 2026-07-14 | 495.21 | 570.31 | 495.44 | 563.97 | 22,716 | $20.7M |
| 2026-07-13 | 533.15 | 542.19 | 490.01 | 495.21 | 18,331 | $14.4M |
| 2026-07-12 | 508.01 | 549.4 | 502.58 | 533.15 | 33,767 | $15.8M |
| 2026-07-11 | 498.97 | 535.04 | 494.5 | 508.01 | 15,270 | $13.2M |
| 2026-07-10 | 481.57 | 516.33 | 477.23 | 498.97 | 17,193 | $14.3M |
| 2026-07-09 | 465.59 | 496.4 | 454.78 | 481.57 | 17,328 | $14.8M |
Live analytics for PF_ZECUSD → · Download PF_ZECUSD tick days →
How to download ZECUSD historical data
- Open the Data Shop — the link lands on the most-recorded ZECUSD instrument; every other venue and class of the pair is one row of the exchange matrix above, and each row links straight to its own instrument.
- Pick a UTC day in the calendar. Each day is one file with every trade, order-book update and quote the venue published — the shop shows the day's candle and file size before you buy.
- Try a free sample day first — one complete day of a major pair, same schema, no sign-up.
- Check out as a guest — pay by card, no account, no sales call — and the file downloads immediately at €1 per instrument-day. Buying many days? Select them across the calendar or use the scanner bulk-add.
- Need CSV or Parquet instead of the native tick file? Append
?format=to any download — see the formats overview for the trades, BBO and liquidation exports.
Market structure & coverage
ZEC quoted in USD: tick data has been recorded since October 2023, with new days added daily — over 3 years of history across spot, perpetual and dated futures on 5 venues: 5 instruments, 4,321 recorded instrument-days, 8.75 TB raw. Each day is one complete tick file — not a snapshot or candle feed — at €1 per instrument-day, self-service, with no subscription.
Why buy ZEC/USD data here
Four things every page on this site is built on — and the reason the numbers above exist at all.
We record everything
The complete public feed of each venue as it was published: every Level-2 snapshot and update at the venue's full book depth, every trade with its aggressor side, every quote, funding, mark-price and liquidation event — for every instrument the venue lists, every UTC day since we added the venue. Nothing sampled, no top-N cut, no on-demand capture.
Institutional grade
Captured co-located at the venue with the exchange timestamp and our receive timestamp in integer nanoseconds, an event-id chain that makes any gap visible, and one normalized schema across 35+ venues — the same capture our own high-frequency trading engine and enterprise feeds run on.
€1 per instrument-day
Any instrument-day is €1, series-day bundles start at €1 — no subscription, no minimum order, no tiers to unlock. Credit packs lower the effective price and never expire, and every venue has free full-day samples to test against first.
Self-service for everyone
Pick the days in the Data Shop, pay by card as a guest and download immediately — no sales call, no enterprise contract, no KYC. Coding agents buy the same files through the MCP server, and the free Agent Skill teaches them the format.
Agents: /llms.txt · MCP server /mcp · every page as markdown via Accept: text/markdown
ZEC/USD historical data — FAQ
Which exchanges have ZEC/USD tick data?
Every venue that lists the pair, every instrument, every day since it was added: 5 venues in the archive, led by Kraken Futures, Coinbase, Kraken Spot, Bitfinex and Okx — 5 instruments in total across spot, perpetual and dated futures. The exchange matrix on this page lists every venue with its first recorded day, recorded days and size; the cross-venue analyzer compares them live.
How much does ZEC/USD historical data cost?
€1 per ZECUSD instrument-day — no subscription, no minimum order, no account needed: buy as a guest, download instantly, or use credit packs that never expire. Free full-day samples first on the downloads page; details on pricing.
How far back does ZECUSD historical data go?
The earliest ZEC/USD day in the archive is 2023-10-11 (Coinbase); the pair is still being recorded and a new day is added every day. Across all venues the pair holds 4,321 recorded instrument-days. Coverage differs per venue — the matrix shows each venue's own span.
How big is one day of ZECUSD data?
On average 2.07 GB of raw data per instrument-day across the 5 ZEC/USD instruments; the most-recorded instrument, PF_ZECUSD on Kraken Futures, averages 3.54 GB per day. Files are zstd-compressed on disk (roughly 20:1); the shop shows the exact compressed size of every day before checkout.
Is ZEC/USD available as spot, perpetual and futures data?
Spot on 3 venues (Coinbase, Kraken Spot and Bitfinex); Perpetual on 1 venue (Kraken Futures); Dated futures on 1 venue (Okx). Each class is a separate instrument with its own day files.
Can I download ZECUSD data as CSV or Parquet?
Yes — every free sample and every purchased tick day also exports as gzipped CSV or Parquet at no extra cost: trades and liquidations (derivatives, 2026 onward) in both formats, plus top-of-book (BBO) quotes as CSV. Timestamps are integer microseconds UTC and the columns load straight into pandas, polars or DuckDB — see the formats overview.
What was the ZECUSD closing price on a given day?
The daily price-history table on this page lists open, high, low, close, trade count and USD turnover per UTC day for PF_ZECUSD on Kraken Futures, computed from our recorded trades since 2025-01-11. The latest close is 1,366 on 2026-10-06; the highest daily close was 1,652 on 2026-09-26 and the lowest 29.12 on 2025-03-10. In the 30 days to 2026-10-06 the pair recorded $1.4B of USD turnover over 1,327,314 trades on that venue.
Which exchange has the tightest ZEC/USD spread?
In the 30 days to 2026-10-06 the lowest average quoted spread among the actively traded ZEC/USD instruments in our recordings was on Coinbase (ZEC-USD, spot) at 3.33 basis points; for comparison: Kraken Spot ZECUSD 3.98 bps, Kraken Futures PF_ZECUSD 5.40 bps, Bitfinex ZEC/USD 19 bps. Measured from the recorded order books, averaged per day — the market-structure table on this page lists every venue.
Which exchange has the deepest ZEC/USD order book?
In the 30 days to 2026-10-06 Kraken Futures (PF_ZECUSD, perpetual) carried the most resting liquidity: on average $251.4K per side within the top 20 price levels and $1.5K at the best bid/ask. Depth is the mid-side total notional over the top 20 levels, computed from our full-depth order-book recordings.
Where is ZEC/USD traded the most?
In the 30 days to 2026-10-06 Coinbase (ZEC-USD, spot) led with about $155.4M of turnover and 167,174 trades per day, out of 4 ZEC/USD instruments with recorded activity.
What is the tick size of ZEC/USD?
The smallest price step per instrument — Kraken Futures PF_ZECUSD (perpetual): 0.01; Coinbase ZEC-USD (spot): 0.01; Kraken Spot ZECUSD (spot): 0.01; Bitfinex ZEC/USD (spot): 0.00000001 (price-banded); Okx ZEC-USD_UM_XPERP-310530 (futures): 0.01. The smallest quantity step (lot size) — Kraken Futures PF_ZECUSD (perpetual): 0.01; Coinbase ZEC-USD (spot): 0.00000001; Kraken Spot ZECUSD (spot): 0.00000001; Bitfinex ZEC/USD (spot): 0.00000001; Okx ZEC-USD_UM_XPERP-310530 (futures): 1. The instrument-specifications table on this page lists every row. Values as synced from the venues on 2026-10-07; exchanges change these rules, so check the venue before trading.
What is the minimum order size for ZEC/USD?
Minimum order quantity and, where the venue publishes one, minimum notional — Kraken Futures PF_ZECUSD (perpetual): 0.01 ZEC; Kraken Spot ZECUSD (spot): 0.01 ZEC; Bitfinex ZEC/USD (spot): 0.004 ZEC; Okx ZEC-USD_UM_XPERP-310530 (futures): 1 ZEC. Values as synced from the venues on 2026-10-07; exchanges change these rules, so check the venue before trading.
What is the funding interval of ZEC/USD perpetuals?
Funding settles Kraken Futures PF_ZECUSD (perpetual): every 1 h. Every funding-rate update is part of the recorded perpetual day files (message type 9), so the full funding history replays from the archive. Values as synced from the venues on 2026-10-07; exchanges change these rules, so check the venue before trading.