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Open Interest Screener

Open interest screener:
find changes without scanning every chart.

Set a percentage change and a time window. The screener checks futures open interest across 9 exchanges every minute. When your conditions match, a push or Telegram alert brings the coin to your attention for analysis. Monitoring continues when the website is closed.

Set up free Read strategy guide
OI buildup · SOLUSDT · 4h
across futures venues · example
$139.3M
+20.1%
Binance
$45.9M +20.8%
Bybit
$26.6M +20.9%
OKX
$21.5M +19.4%
Bitget
$13.1M +19.1%
KuCoin
$10.7M +18.9%
MEXC
$7.2M +20.0%
HTX
$5.9M +18.0%
Gate.io
$4.8M +20.0%
Hyperliquid
$3.6M +20.0%
Existing OI New positions (4h)
ON THE MARKET NOW

Where open interest changed most in the last hour

Five coins with the largest open interest change over the last closed hour. Only pairs with daily turnover from $10M are listed.

  1. 1 OP Optimism $0.1422 −11.71%
  2. 2 LUMIA Lumia $0.1551 −5.88%
  3. 3 CKB Nervos Network $0.001525 +5.38%
  4. 4 RLC iExec RLC $1.04 +4.45%
  5. 5 CHIP USD.AI $0.0679 +3.31%

These are market moves, not recommendations. The screener sends an alert once a move exceeds the threshold you set.

Two scenarios, one alert

OI ↑ & Price ↑

OI AND PRICE RISE

Outstanding contracts increase alongside price. This combination helps assess the move but does not identify long and short additions separately.

OI ↑ & Price ↓

OI RISES, PRICE FALLS

Outstanding contracts increase while price falls. Review the chart and other metrics: OI cannot identify the direction of each new position.

Read more in our Open Interest Strategy Guide and What is Open Interest.

What arrives when the screener fires

One firing, two shapes. The messenger gets the short form: pair, window, venue and numbers. The feed on the site lays the same coin out line by line and puts the breakdown underneath: where in the indicators the move happened, whether one coin moved or the whole market, what the premium on the Korean exchanges was doing, and whether an exchange announcement landed close in time.

CFX/USDT Open interest +10.50%

Binance Futures

OI up by 10.50% OI Value $2.0M Price Increased by 6.43% Price $0.06588 24h $0.05049 — $0.06646 Volume Surged by 4.64% Market-adjusted: now from 10.40% (range 5.60–10.40%)

Breakdown

After past alerts ±1.4%

How far the price typically moved within 1h after past alerts, up or down: 72 over 30 d

24h turnover $753.7M

Liquid coin: the move is hard to fake

Over 15 min: Price and OI rise. Check OI units and the chart; these readings do not identify who is opening positions.

All indicators (14)
Longs / shorts
1.29 More longs than shorts, which is normal for the market
Funding, Binance · futures
+0.0057% Normal rate, no skew
OI changes / turnover
0.11 OI changes are small relative to estimated turnover; this does not prove no new positions opened
Price in the 24h range
Near the 24h high
1h RSI
57 Neutral zone: neither overheated nor sold off
From the 200-day average
+21.81% Above the 200-day average: long-term trend is up
From the 50-hour average
+11.02% Well above the 50-hour average: a sharp jump up
Daily RSI
68 Neutral zone: neither overheated nor sold off
Volume vs average
×0.26 Volume below usual: a thin market, easy to reverse
Indicators from the chart of
Binance · futures
Coins moving the same way (15 min)
3% Its own move: only 3% of liquid coins moved 1% or more the same way
Korean price vs world
+1.23% Price in Korea is above the world price: local buyers are more active
Gap change over 15 min
+1.2 pp The gap with the world price is growing
Korean trading, 24h
$18.8M Enough trading in Korea to trust the gap with the world price
11.10.2026, 06:38

The full card stays in the feed

The same numbers, links to the chart and the exchange, and below them the breakdown: what happened after past alerts on the coin, how often it fires, how liquid it is and what each number means, in words. A card can be starred, commented on, filtered by coin or screener, and come back to a week later.

  1. 1
    Coin, screener and time

    Which pair, which screener found it and how many minutes ago. If the move continues, cards do not pile up: repeats are merged into this one with a counter.

  2. 2
    What actually happened

    The message lines, each with an icon for what it means — the same wording that goes to the messenger. Comparing the message and the card, you read the same thing.

  3. 3
    The numbers behind the firing

    The metrics the condition fired on and the ones next to them: change in price, open interest and volume, the current price within the daily range. The exchange name links to the pair, the links below the numbers open the chart.

  4. 4
    Alert breakdown

    On top, the answer to "is it worth a look": what happened to the coin after past alerts from this screener, how often it fires and how liquid it is. Below, under "All indicators": positions, funding, indicators, market share and the Korean premium, each number with a plain-words conclusion. The set differs by screener — the example shows this one.

  5. 5
    What you can do with a card

    Star it, leave a comment, add a reaction, open the coin, or collapse the feed by coin — to see which pair several screeners agreed on over the period.

How to read an alert breakdown

10
exchanges monitored
Binance · Bybit · OKX · and 7 more
7,166
trading pairs every minute
Spot and futures on 10 exchanges
1.6s
full market sweep
All exchanges at once
2.7%
of checks were a hit
Over 24h, at our users' current thresholds
READY-MADE PRESETS

Start from a preset

Tap a strategy — we'll open the screener settings in your dashboard with values pre-filled. Tune any preset further to fit your style.

Fast OI spike

+5% in 5 min
Preset logic

Logic: the fastest open interest spikes — +5% in five minutes, meaning many new positions opened in a short time. The $10m turnover floor filters out thin pairs, where a spike like that means nothing. At most one alert per coin every half hour: this is the most frequent OI scenario.

Apply preset

OI growth on large coins

+20% in 4 hours
Preset logic

Logic: open interest up 20% over four hours — positions built up steadily rather than in one burst. The floors keep only large caps: open interest from $20M, turnover from $50M. At most one alert per coin in 12 hours.

Apply preset

OI / price divergence

OI ↑ vs price ↓ in 30 min
Preset logic

Logic: base OI trigger is off — only divergence fires. OI rising while price falls means new positions are opening into the drop. OI falling while price rises means the rise comes from positions being closed. 30-min window, OI ≥ 5%, price ≥ 1%; open interest from $5M, turnover from $10M.

Apply preset

OI impulse + divergence

+8% in 15 min
Preset logic

Logic: two scenarios in one preset. The base 8% / 15 min scenario marks sharp OI spikes; the divergence layer (60 min, OI ≥ 4%, price ≥ 1.5%) marks slower mismatches between OI and price. Two scenarios easily stack into a series on one coin, so the cap is one alert per two hours.

Apply preset

Frequently asked questions

What is open interest in crypto futures?

Open interest (OI) measures futures contracts that remain open. Exchanges may report it in contracts, coins or dollars. Rising OI alone does not reveal position direction; when comparing dollar values, account for changes in the coin price.

How quickly does the screener notice an OI change?

Every 60 seconds the screener pulls fresh OI from 9 exchanges and re-evaluates your rule. End-to-end you typically see the notification 4 seconds after the change crosses your threshold (2 seconds to sweep, then analysis and delivery).

Can I limit alerts to specific coins?

Yes. Each preset has a minimum open interest and turnover — raise them and only large caps will reach you. You can also limit the screener to your favourite coins and turn off exchanges you don't trade on in General settings.

What % threshold makes sense for scalping vs swing?

Choose a threshold for the coins and time window you follow. Lower thresholds produce more alerts; higher thresholds produce fewer. Start with a preset, review the changes it finds, then adjust the percentage, period and filters. A threshold alone does not confirm a trend.

Why does OI grow without price moving?

Open interest measures outstanding contracts but does not tell you who is adding longs or shorts on its own. Rising OI with little price change means more outstanding positions without a clear price move. The OI/price divergence setup helps you find these cases and review the chart.

Is there a free tier?

Yes. First a free trial of 7 days with full access, then the Free plan: one alert a day on any screener, with no end date. No limit on SOLO (one screener) and PRO (all of them).

Set up the OI Screener →

Additional filters · same for every screener

Filters help you select pairs by liquidity, exclude unsuitable coins, and limit repeat alerts. Adjust them to your strategy if you receive too many alerts.

  • Minimum current open interest Skip coins with low OI to avoid alerts on micro-caps with no real positions.
  • Minimum current 24h turnover Cut out illiquid pairs — only get alerts on coins with real trading activity.
  • Watch only my Favorites Limit the scan to the coins you starred — useful when you trade a focused list.
  • Skip blocked coins Permanently exclude coins from your blocklist — they will not generate alerts on any screener.
  • Max alerts per coin per interval (15 min – 24 h) Anti-spam by ticker: cap how many alerts one coin can generate over your chosen window.

One tap from notification to chart

Each alert can include a link to the chart, the coin's spot and futures pages on the exchange, and the coin's page on JustScreener — so you go from notification to chart in a single tap.

  • Chart An external chart of the coin, ready for analysis.
  • Coin page · spot exchange Direct link to the coin's spot trading page on the exchange where the alert fired.
  • Coin page · futures exchange Direct link to the coin's futures trading page on the exchange where the alert fired.
  • Coin page · JustScreener Live page on JustScreener with price, OI, funding and 24h turnover side-by-side.

Try the screener with your strategy.
Start with a ready-made setup, connect push or Telegram, and review the alerts during your trial.

Get started free
What this means Threshold and interval set the flow: the lower the threshold and the shorter the interval, the more often alerts arrive. Start with a ready-made preset and tune it to the frequency you want.