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🔊 Volume Spike Scanner

Scans the top 80 Binance coins on 5m, 15m or 1H and ranks them by last closed bar volume vs the 20-bar average, with taker buy share and spike alerts.

Min ratio

Extreme · 5×+–

Spike · 3–5×–

Elevated · 2–3×–

Median ratio–

Next bar closes in–

Volume spikes · top 80 coins by turnover

Tap a row to chart it below. Tap a header to sort.

						Price
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Ratio = volume of the last closed bar ÷ average volume of the 20 closed bars before it (in coin units). Bar change = that bar's close ÷ open − 1. Taker buy = share of that bar's volume filled by market buy orders. Forming (proj.) = volume of the bar still forming ÷ (20-bar average × fraction of the bar elapsed); it appears once 10% of the bar has passed and is not final. KRW is a reference conversion at the USDT/KRW rate. Dimmed rows still show the previous bar.

Recent catches

3× or more · last 30

Closed	Coin	TF	Ratio	Change

Coins that hit 3× or more on a newly closed bar are logged in this browser. When you come back, missed bars are filled in for up to the last 9 bars.

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Bars = volume (solid bars are 2× or more of the previous 20-bar average), yellow line = previous 20-bar average volume, dots = closed bars at 3× or more.

Selected coin

Closed-bar ratio–

Forming (proj.)–

Bar turnover–

Taker buy share–

Pick a row in the table to see the breakdown here.

For information only, not investment advice. Data comes from exchanges' public APIs and may be delayed or interrupted. Charts: TradingView Lightweight Charts™

What this tool does

Volume often moves before price. When a single bar trades several times its usual amount, something is usually going on: news, a large order or a wave of liquidations. This tool sweeps the top 80 coins on Binance by turnover on the 5-minute, 15-minute or 1-hour chart and ranks them by how many times their normal volume the bar that just closed traded. A recent-catches log and optional spike alerts help you not miss one.

How it is calculated

The universe is the top 80 Binance spot USDT pairs by 24-hour turnover (stablecoins and wrapped tokens excluded, as are coins priced within ±1% of $1 with a 24-hour range under 1% and coins whose trading is halted on the exchange). For each coin the last 30 bars (including the one still forming) are fetched, and the ratio of the last closed bar = its volume ÷ the simple average volume of the 20 closed bars before it. Volume is counted in coin units and the forming bar never enters the ratio. 5× or more is tagged Extreme, 3× or more Spike, 2× or more Elevated. Bar change = (close ÷ open − 1) × 100; turnover = the bar's USDT volume; taker buy share = taker buy volume ÷ volume (above 55% buyers ahead, below 45% sellers ahead). Forming (projected) = forming-bar volume ÷ (previous 20-bar average × fraction of the bar elapsed), shown only once 10% of the bar has passed. KRW = USDT × Bithumb's USDT/KRW rate (Upbit as fallback), a reference only. Scans run every 60 seconds on 5m, every 2 minutes on 15m and every 5 minutes on 1H, plus 3 seconds after every bar close.

Pick a timeframe: 5m for scalping, 15m (the default) for intraday flow, 1H for the bigger picture.

The table is sorted by ratio, highest first. Use Up bars / Down bars and the minimum ratio to narrow it to high-volume up or down bars, or tap a header to sort by turnover, taker buy share or the forming-bar projection.

Tap a coin to open its chart below: candles, volume bars and the previous 20-bar average line. The panel beside it breaks down the bar's change, wicks and taker flow, and how it compares with the whole market.

Leave the tab open and coins that reach 3× collect under Recent catches. Turn on spike alerts to keep scanning while the tab is hidden and be told with a browser notification and a beep.

Reading the screen, section by section

Top bar: timeframe, direction, minimum ratio, alerts

Three timeframes: 5m, 15m (default) and 1H. Switching clears the table and rescans all 80 coins on that timeframe. Direction (all, up bars, down bars) and minimum ratio (1.5, 2, 3 or 5× and up) only filter results already loaded, so they apply instantly with no new requests. An up bar closed above its open, a down bar below it. Rescan reloads the table and chart right away. Spike alerts keep the scanner running while the tab is hidden, and the alert condition (the direction filter and the larger of 3× and the minimum ratio) follows the settings on this bar. Your settings, sort and selected coin stay in the address bar.

With direction set to up bars, alerts fire on up bars only.

Summary tiles: extreme, spike, elevated, median

The first three tiles count coins whose last closed bar is 5× or more (extreme), 3–5× (spike) and 2–3× (elevated), with the three highest names. The fourth is the median ratio of every coin computed on that same bar: near 1 is an ordinary bar, above 1.5× means volume rose across the market. The last tile counts down to the next bar close every second, with the time to the next scan, the scan progress or a paused note underneath. Just after a new bar starts, coins that have not delivered the new bar yet are left out, so counts can creep up until the scan finishes.

Volume spikes table: top 80 coins by turnover

The scanner takes the 80 Binance USDT spot pairs with the highest 24h turnover (excluding stablecoins, wrapped tokens, coins pegged near one dollar and pairs idle for over an hour) and loads the latest 30 bars of each. Ratio is the last closed bar's volume in coin units ÷ the average of the 20 closed bars before it. Bar change is close ÷ open − 1, turnover is the bar's USDT value (with a KRW reference), and taker buy is the share of the bar's volume filled by market buys. Default order is highest ratio first; tap a header to re-sort. Dimmed rows still show the previous bar. Only 20 rows show at first; the button below opens the rest.

'No new bars (trading halted)' marks a coin the exchange has stopped trading.
'Too few bars (n)' marks a new listing with fewer than 21 closed bars.

The 'Forming (proj.)' column

This stretches the volume of the bar still forming to a full bar: forming volume ÷ (average of the previous 20 closed bars × fraction of the bar elapsed). It appears only once 10% of the bar has passed (a dash before that), so on 15m after 1 minute 30 seconds. Table values come from the last scan and stay put until the next one; the coin selected in the chart is recalculated every 15 seconds. Values of 3× or more are highlighted. Early in a bar a single large fill can push it high before it fades, which is why the closed-bar ratio is what counts. A high projection does not guarantee a high closing ratio.

Recent catches and spike alerts

Coins that reach 3× or more on a newly closed bar are logged in this browser with close time, coin, timeframe, ratio and change, up to the last 30 (nothing is sent to a server). Reopening the tab fills in missed bars for each coin, up to the last 9. Select a row to open that coin in the chart below. With spike alerts on, a new closed bar over the threshold triggers a browser notification, a count in the tab title and a short beep. The first scan after opening the page and back-filled bars are logged but not alerted. If the browser blocks notifications you get the title badge and beep only, and the note under the card states the current mode.

'Clear log' clears this browser's log only.

Chart: candles, volume bars and the average line

The selected coin's latest 200 bars appear as candles on top and a tall volume pane below. Closed bars at 2× or more of the previous 20-bar average are drawn solid, the rest faint, and the line is the average volume of the 20 bars before each bar. Because a bar is not part of its own average, a bar twice as tall as the line is a 2× ratio. Closed bars at 3× or more get a dot and the ratio above the candle. The forming bar on the right is not rated and shows as 'Forming' in the legend. The chart reloads every 15 seconds and after each scan. Move the crosshair and the legend shows that bar's volume, average and ratio.

Selected coin: tiles and readout

The tiles show the closed-bar ratio (with the bar's time range), the forming projection with how much of the bar has passed, the bar's turnover in USDT with a KRW reference, and the taker buy share: above 55% reads as buy-side fills leading, below 45% as sell-side, otherwise even. The readout gives the ratio band, the change from open and bar direction, and the fill direction; on bars of 2× or more it points out an upper or lower wick of 50% or more of the bar's range. When the scanner covered the same bar it compares with the market median: 2× the median or more means volume concentrated in this coin, a median of 1.5× or more means the whole market rose. It ends with how many of the last 100 bars hit 3×.

Taker buy share counts which side was filled, not how many buyers or sellers there were.

Keeping it open

A scan runs 3 seconds after every bar close and in between every 60 seconds on 5m, 2 minutes on 15m and 5 minutes on 1H. So the moment the 'next bar closes in' timer hits zero is when there is most to see. Check the extreme and spike tiles and the median first, then open any coin that stands out while the median is low and look at its volume bar and wicks in the chart. Mid-bar, sort by the forming projection to preview the next close. Scanning rests in a hidden tab; turn on spike alerts to keep watching. A multi-timeframe trend table or a divergence finder open alongside shows the trend around a volume burst.

A volume spike only says something happened; it does not tell you the price direction.

Things to know

Check the median ratio too. If the whole market is running at 1.8×, one coin at 2× is nothing special; a coin at 3× while the median sits near 1 is where the trading is concentrated.

The shape of a high-volume bar matters. A long upper wick is commonly read as selling from above, a long lower wick as buying from below. The panel states how much of the bar the wick takes up.

The forming-bar projection swings widely early in the bar, since a single burst of trades can inflate it. The confirmed value is the ratio after the bar closes.

Share the address bar link to open the same timeframe, direction, minimum ratio, sort order and selected coin.

Frequently asked questions

How exactly is the ratio calculated?

It is the last closed bar's volume (in coin units) divided by the average volume of the 20 closed bars before it. If a coin averaged 1,000 coins per 15-minute bar and the bar that just closed traded 4,200, the ratio is 4.2×. Unlike TradingView's 20-period volume moving average, a bar is not part of its own average, so you can compare each bar directly with the yellow average line on the chart.

Why judge the closed bar and not the one forming?

The forming bar is still accumulating volume, so its value is not final. Its pace is shown separately in the Forming (proj.) column: forming volume ÷ (average × fraction of the bar elapsed). It appears only after 10% of the bar has passed and is not a confirmed figure.

How often does it update?

All 80 coins are rescanned every 60 seconds on 5m, every 2 minutes on 15m and every 5 minutes on 1H, and again 3 seconds after each bar closes. The countdown shows the time to the next close. Scanning pauses while the tab is hidden and resumes as soon as you return; with spike alerts on it keeps going in the background.

How do Recent catches and spike alerts work?

Coins that reach 3× on a newly closed bar are stored in this browser only (nothing is sent to a server), up to the last 30. When you come back, missed bars are filled in for up to the last 9 bars per coin. With alerts on, scanning continues while the tab is hidden, and a newly closed bar that matches the chosen direction and reaches the larger of 3× and your minimum ratio triggers a browser notification, a tab-title badge and a short beep. The first scan after opening the page is a baseline and never alerts, and back-filled older bars go into the log without an alert.

How is the KRW turnover calculated?

It is the bar's USDT turnover multiplied by Bithumb's USDT/KRW rate (Upbit if Bithumb fails), a reference only. It is the amount traded on Binance converted to won, not turnover on Korean exchanges.

For information only, not investment advice. Data comes from exchanges' public APIs and may be delayed or interrupted.