When the volume runs hot, you'll know first.
Watch any stock or crypto ticker. The moment today's volume runs 2x (or your custom multiple) above its 20-day average, we email you.
Your watches
last sweep 8s ago| Ticker | Today | 20d avg | Spike | Threshold | Status |
|---|---|---|---|---|---|
| NVDA | 241.5M | 70.6M | 3.42× | 2.0× | ⚡ TRIPPED |
| BTC | 35.3B | 39.3B | 0.90× | 1.5× | quiet |
| AAPL | 76.8M | 151.9M | 0.51× | 2.0× | quiet |
Compares live volume against the 20-day average — a signal traders pay $200/mo for elsewhere.
Works for stocks (Yahoo Finance) and crypto (CoinGecko). No keys, no setup.
Get an email the moment a watch trips. Refresh on demand any time.
Three steps. Done.
Add a watch
Type a ticker (NVDA, BTC) and pick your spike threshold (default 2× the 20-day average).
We sweep continuously
Background monitor pulls live volume from Yahoo + CoinGecko every minute. No manual refresh needed.
Get pinged the moment it trips
Email + Telegram with price + spike ratio. 24-hour dedup so the same spike doesn't spam.
Volume signals before the price moves.
Most price-alert tools tell you AFTER the move. Volume spikes precede price spikes — Surge catches the institutional accumulation before it shows up on the chart.
Free or $9/mo. That's it.
No contracts. Cancel anytime.
Free
$0/forever
- ✓Up to 3 watches
- ✓Manual check anytime
- ✓Live volume vs 20-day average
Pro
$9/month
- ✓Unlimited watches
- ✓Email alerts when a watch trips
- ✓Alert history (last 90 days)
- ✓Custom thresholds per watch (1.5x, 2x, 3x, etc.)
Quick answers.
What does 'volume spike' actually mean? +
Each day's trading volume is compared to the average of the previous 20 days. A 'spike' is today's volume divided by that average — e.g. 2.5x means today is 2.5 times normal. Big spikes often precede price moves; some funds trade off this alone.
How do you get the volume data? +
Yahoo Finance public chart API for stocks and CoinGecko public API for crypto. No accounts, no API keys, no scraping.
How often is it checked? +
Free: whenever you click 'Check now'. Pro: hourly automatic checks during market hours, with an email when any watch trips.
Can it watch options or futures? +
Not yet — equities and major crypto only. Options-flow alerts are on the roadmap.
What's the cancel policy? +
Cancel any time from your account page. You keep Pro features until the period ends; no pro-rated refund.
Does it work outside US market hours? +
Yes for crypto (24/7) and crypto-watched tickers. Stock-watched tickers update during regular Yahoo Finance hours; pre/post-market data isn't included.
Stop watching tickers manually.
Free tier doesn't expire. Upgrade only when you need more.