How Does Aggregated Crypto Futures Data Work?
Aggregated futures data combines open interest, volume, funding and liquidations from every major exchange into single market-wide numbers. Because crypto derivatives trading is split across many venues, any per-exchange figure understates the real market. Aggregation is what makes readings comparable across coins and over time.
Published August 6, 2026 · Coinfuty — figures on this page are generated from Coinfuty’s aggregated live feed and refresh automatically. Latest update: August 6, 2026, 04:32 UTC.
Why does futures data need aggregating at all?
Because the market has no single home. Bitcoin futures alone trade on more than a dozen serious venues at once, and altcoin activity is even more fragmented. Any number read from one exchange — open interest, volume, funding — describes a slice, and the slices disagree: a venue can show falling OI while the market as a whole is loading up elsewhere.
Aggregation solves this by treating the venues as one market: collect the same metric everywhere, normalize it to common units, and sum. The result is the number people actually mean when they say “Bitcoin open interest.”
How does the aggregation pipeline work?
Conceptually, four stages:
| Stage | What happens | Why it matters |
|---|---|---|
| 1. Collect | Poll each exchange continuously for every contract | Stale venues would distort the total |
| 2. Normalize | Convert everything to USD, timestamps to UTC | Coin-margined and stablecoin contracts become comparable |
| 3. Merge | Map each venue’s listings to one canonical coin | The same asset lists under several tickers and margin types |
| 4. Sum & derive | Total per coin; compute weighted metrics on top | Enables OI-weighted funding, market share, market-wide series |
Venues reporting zero or broken values are excluded from the sum rather than counted as real zeros — a small rule that keeps the aggregate honest. More on the coin-level mechanics in the aggregated open interest guide.
What does the aggregate look like right now?
As of the latest update, Coinfuty aggregates futures data from 19 exchanges. Combined open interest stands at $96.99B, with $151.54B in futures volume traded over the past 24 hours. Binance currently holds the largest share at $25.01B (25.8% of tracked open interest). As of the latest update, total crypto futures open interest across all tracked exchanges stands at $97.01B (+0.04% over the past 24 hours).
Even the largest single bar is a minority of the market — the visual version of why per-exchange numbers understate reality. The full table is on the Exchanges page.
What does aggregation change in practice?
It upgrades every derived metric. Funding becomes OI-weighted funding — the rate weighted by where positions actually sit, instead of a naive average that lets a tiny venue skew the number. Liquidation totals capture stress wherever it fires rather than where you happened to look. And market-wide series — the 30-day OI chart above, the liquidation heatmap — only exist at the aggregate level. Every number on Coinfuty, from the market table to each coin page, is built this way, with per-exchange breakdowns underneath for when the split matters.
See the live data
Frequently Asked Questions
Why do open interest numbers differ between data sites?
Mostly coverage and method: which exchanges are included, whether both stablecoin-margined and coin-margined contracts are counted, how duplicate listings of the same asset are merged, and how often the data refreshes. Two honest sites can print different totals for the same coin at the same minute.
Is one exchange's data enough to trade on?
It describes that venue only. A coin can look calm on one exchange while its open interest doubles elsewhere. Any per-exchange figure is a sample; the aggregate is the population.
What is OI-weighted funding and why does it need aggregation?
It is the average funding rate across exchanges weighted by each venue's open interest, so the venues holding real positions count proportionally. Computing it requires knowing every venue's rate and OI simultaneously — which is only possible with aggregated data.
How many exchanges does Coinfuty aggregate?
Every major derivatives venue — around nineteen at present, spanning both stablecoin-margined and coin-margined contracts. The Exchanges page lists them all with their current open interest, volume and fees.