Open perpetual positions in SOL on Binance and Bybit, one side of the book, from the first months the contracts existed. Bold line = the 30-day average.
8,513,314 both venues · Binance USD-M on Oct-22 2026, the last day in this build, measured and published by askthetape.com.
SOL perpetuals from nearly the first months they existed: Bybit's own archive starts 2021-10-14 and Binance's 2021-12-01. On Oct-22 2026 there were 8,513,314 SOL open on Binance USD-M and 3,062,568 on Bybit — 11,575,882 coins between them, Binance holding 73.5% of it. Counting in COINS is what makes this page readable across five years: the dollar value of the same positions rose and fell with the SOL price by a factor of twenty, while the number of coins riding on them is a straight count of what traders did. 🩸 ONE SIDE of the book on both venues. Bybit reports both sides of every contract and is halved over its whole history; Binance already publishes one side. The two lines can therefore be added up or compared without counting anything twice — that is the whole point of the second view. The line is joined: the venue's own daily series before 2026-03-31, our own capture of the same venue's ticker from that day on, with the factor and the overlap printed below. No forecast is drawn.
| binance · provenance | the venue's own daily series before 2026-03-31 (Binance's public daily archives of USD-M futures metrics, 5-minute buckets read at the close of the UTC day); our snapshots of the same venue's ticker from 2026-03-31 on (the last snapshot of the UTC day); normalized ×1.0003 on 165 overlapping days (2026-03-31 → 2026-09-11, r 0.9987, p90 0.58%). The factor is not copied from anywhere: it is re-measured from the overlap file on every build and came out ×1.0003 on this one. USD-M is Binance's dollar-margined book: the contracts there are margined in dollars, not in the coin |
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| bybit · provenance | the venue's own daily series before 2026-03-31 (Bybit v5 market/open-interest, intervalTime=1d, singleOpenInterest); our snapshots of the same venue's ticker from 2026-03-31 on (the last snapshot of the UTC day); normalized ×1.0000 on 164 overlapping days (2026-03-31 → 2026-09-10, r 0.9999, p90 0.10%). The factor is not copied from anywhere: it is re-measured from the overlap file on every build and came out ×1.0000 on this one. Their bar is stamped with the START of its period, so the day label is shifted one day back before the two halves are compared |
| bybit · sides | Bybit publishes BOTH sides of every contract; this series is ONE side. The halving is applied to the whole history, so there is no seam to date — and it is applied ONCE. The build refuses to run if that stops being true: it checks our BITCOIN Bybit row for 2026-09-10 (the same check guards every coin, because all of them come out of one file), which must read 28,254.222 — the single side of that day, against 56,508.444 in the exchange's own head field the same minute, checked 2026-09-12. Every other venue on this page and on this site already publishes one side and is left alone. |
| seam · binance, measured on this build | on the first overlapping day (2026-03-31) the venue's history reads 9,584,153.660 and our capture 9,595,191.160 — 0.115% apart. There is no step at the join: what jumps across it is the market |
| seam · bybit, measured on this build | on the first overlapping day (2026-03-31) the venue's history reads 3,380,775.900 and our capture 3,380,575.050 — 0.006% apart. There is no step at the join: what jumps across it is the market |
| 🩸 what the join is not | the two halves are NOT two independent sources. Both numbers come from the same exchange: its own published daily history before the join, our own snapshots of its live ticker after. What the overlap measures is therefore consistency of two readings of one venue, not agreement of two witnesses — and that is why the factor, the correlation and the worst day are printed instead of a verdict word. |
| how this differs from «How much is bet, on every venue» | that page counts USD of open bets across 18 venues, one principal instrument each, with the venue set stepping up over time; this page counts COINS on two fixed venues (Binance, Bybit) back to 2021 — no composition steps, so the sum and the share view are comparable across the whole history. Same one-side convention on both pipelines: on bitcoin, Bybit ÷ Binance agrees between them to a median of 1.0001 on 2,202 shared days (measured 2026-09-12). |
| gaps | Binance line: no missing days between 2021-12-01 and 2026-10-22 · Bybit line: no missing days between 2021-10-14 and 2026-10-22 |
| cadence | daily, at the close of the UTC day; our own half is the last of roughly 288 snapshots a day. The running UTC day is cut out of the line and shown hollow |
| since | Bybit 2021-10-14 (1,835 days) · Binance 2021-12-01 (1,787 days) — the first day each venue's own archive returns |
| 🩸 where it is thinner | the Binance leg here has the loosest join of the 7 venue-legs on the three open-interest pages: p90 of the overlap residual 0.58% against 0.10% for Bybit beside it, which is the tightest of the seven. SOL open interest moves faster within a day than bitcoin's does, so a daily aggregation and a snapshot at the close disagree more. Neither line is old enough for this site's five-year rank, so the tiles say «day N» instead of a rank. Two venues, not the market. |
| policy | no backfill · read it here · export: from 2026-03-31 (rows before that day are the exchange's own archive and stay here) |
| this build | data to Oct-22 2026 |
| policy | no backfill · read it here · export: from 2026-03-31 (rows before that day are the exchange's own archive and stay here) |
The chart itself is drawn in the browser: turn JavaScript on to hover a day, pick a window and draw your line. The numbers above come from the last build, Oct-23 2026 21:24Z.
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