Does unusual volume work the same way in crypto?

Short answer: yes, unusual volume still works as a signal in crypto, but the noise floor is higher. Bitcoin, Ethereum, Solana, XRP and Dogecoin trade around the clock on dozens of exchanges with no closing bell, no single official tape, and — depending on the exchange — a meaningful amount of trading that isn't real. That changes how much weight you should put on any single volume reading, even though the underlying idea (compare today's activity to an asset's own recent normal) still holds up. We go deeper on how this comparison works across asset types in reading crypto and commodities with a stock-market lens, but here we're focusing on what's different about crypto specifically.

#Stocks close. Crypto never does.

When you look at unusual volume in a stock like Salesforce (CRM), you're comparing a single, official number — total shares traded on U.S. exchanges between 9:30am and 4pm — against its own 20-day average. Today CRM traded at 2.44 times its normal volume, which is a big enough gap that Momentu flagged it with an activity score of 87 out of 100. Nice and clean, because there is one clock and one closing bell.

Crypto has neither. Bitcoin trades at 3am on a Tuesday just like it trades at 3pm. There's no session to measure against, no gap-up at the open, no end-of-day settlement. So "volume" in crypto is really a rolling 24-hour (or 20-day, in Momentu's case) sum across time, not a bounded trading day. That's not a flaw, but it does mean the concept of a "burst" looks different. A stock can go from quiet to loud in the first ten minutes of trading. A crypto asset's volume tends to build and fade more gradually, because there's no opening bell forcing everyone's orders to land at once.

#The order book is thinner than the price chart suggests

Solana today shows a volume reading of 1.93 times its own normal, with an activity score of 77 and social sentiment running 95 percent bullish. Those numbers look almost as dramatic as CRM's. But here's the catch: even a large, well-known coin like Solana has a shallower order book — the stack of buy and sell orders waiting at each price — than a stock of comparable market value. Think of it like two grocery stores with the same annual revenue, but one has ten checkout lanes and the other has two. The same dollar amount of buying can move the price further in the store with two lanes.

This matters for reading volume anomalies. A 1.93x volume spike in Solana doesn't necessarily represent the same amount of real conviction as a 1.93x spike in a large-cap stock, because it takes less actual money to produce that ratio when the normal baseline is thinner. Momentu compares each asset only against its own history, never against another asset's absolute size, specifically to avoid one common mistake — but "thin" isn't the same as "small." Solana's baseline can be thin in a relative sense even though the coin itself is far from obscure.

#One asset, a dozen different exchanges

A share of NVIDIA trades, for all practical purposes, on one consolidated market. Bitcoin trades simultaneously on Binance, Coinbase, Kraken, and dozens of smaller venues, each reporting its own volume, often in a different way. Add it up and you get a number, but that number is closer to guesswork than the neat, regulated tape you get with a stock. Some of those exchanges are careful about what they report. Some are not.

This fragmentation is one of the two biggest honesty issues in crypto volume data — the other is wash trading, which deserves its own explanation because it's the one thing that makes "unusual volume" in crypto genuinely trickier to trust than in stocks.

#Wash trading: when the volume isn't real

Wash trading is when someone buys and sells the same asset back and forth, often with themselves or a coordinated partner, purely to make trading activity look higher than it is. Imagine a shop owner who wants their store to look busy, so they pay a friend to walk in, buy a shirt, and immediately return it, over and over, all day. The register shows a hundred transactions. Nothing real actually happened.

Regulated stock exchanges have rules and surveillance specifically built to catch this. Crypto exchanges vary enormously — some are rigorously policed, some have far less oversight, and independent researchers have repeatedly found that a chunk of reported volume on smaller or less regulated venues doesn't reflect genuine trading. This means a volume anomaly on a thinly-regulated exchange can be manufactured rather than organic. It's a real limitation, and honestly, no data service — including this one — can fully strip it out. What Momentu can do is lean on volume data aggregated from more liquid, more scrutinized venues, and treat crypto readings with a bit more caution than an equivalent stock reading.

#What this looks like across BTC, ETH, SOL, XRP and DOGE today

Take XRP as a live example. Today it's sitting almost exactly at its own normal — 0.99 times its 20-day average volume — with a score of 61 and social sentiment at 84 percent bullish. That's a case of nothing unusual happening on the volume side, despite the crowd sounding fairly enthusiastic online. It's a useful reminder that social buzz and actual trading activity are two separate things, and Momentu tracks them separately for exactly this reason.

Compare that to Solana's 1.93x reading with 95 percent bullish sentiment. Both numbers are elevated, but remember: elevated volume tells you something bigger than usual is happening in terms of size, not which direction it's headed. In a year-long test across 50 assets and roughly 10,500 daily readings, Momentu found that unusual volume preceded price moves that were about 18 percent larger than normal — but it did not predict whether those moves went up or down. That finding held for stocks. There's no reason to assume crypto behaves differently on this point, and if anything, the extra noise from fragmented exchanges and possible wash trading makes us less confident in fine-grained size estimates for crypto than for stocks, not more.

#So does the lens still work?

Yes, with adjustments. Comparing an asset to its own history rather than to some absolute number is still the right instinct, and it's why a coin like Solana isn't penalized simply for being a large, well-known name the way a naive "biggest movers" list might do. But crypto's 24/7 clock means bursts look different, its thinner books mean the same ratio can represent less real money, its fragmented exchanges make the base number itself less trustworthy, and wash trading means some volume simply isn't real. None of that breaks the tool. It just means crypto readings deserve a slightly wider margin of doubt than a CRM or an NVDA reading, and we think it's more honest to say that plainly than to pretend the two markets are the same.

If you want to see how today's volume compares to normal across Bitcoin, Ethereum, Solana, XRP, Dogecoin and dozens of stocks, the free daily radar runs the numbers every morning — worth a look with your coffee.

Momentu is an informational tool, not financial advice or a buy/sell recommendation, and it does not consider your personal circumstances. Any decision you make is your own.