
Most traders lose money not on bad trades, but on bad coins. You get into an asset with a solid setup, and it just sits there. Or it moves, but you can't exit without 1.5% slippage. Or the order book is empty, the tape is dead, and you have no idea what you're even looking at.
Picking the right instrument is the first decision of every session. And usually the most underrated one.
Below are seven criteria that professional scalpers actually use to screen coins. Not theory. A working checklist.
![[Placeholder: screenshot of the quotes module with coins sorted by volume and volatility]](https://api.secret-terminal.com/uploads/robochij_setap_1d64ccf18f.png)
First filter. Rough, but effective.
For active intraday trading, the floor is $100–150M in 24-hour volume. Coins below that are a nightmare to trade: the order book is empty, there are gaps between bids and asks, and getting out of a position clean is a coin flip.
Why $100M? At that volume, real density levels show up in the order book consistently, the tape runs actively, and you can actually read the market. At $10M, everything turns to noise.
Highly liquid coins like BTC/USDT do $1–3B a day. For scalping, that's a different game: the spread is around 0.011%, which makes it harder to profit on moves — but technically safer and easier to execute in.
Volume is money. Trade count is activity.
A coin doing $200M in volume but only 50,000 trades is probably being pushed by a few large players. A coin at $100M with 800,000+ trades is a live market with real supply and demand.
For tape-based scalping, trade count matters more than raw volume. The tape needs to fly — frequent small prints signal real interest from the majority of participants. Rare, large prints with silence in between? Bad sign.
Minimum target: 800,000 trades per day. More is better.
Volatility is the price range an asset moves through over a given period. Scalpers need volatility that creates movement and entry opportunities. For more on how to measure and use volatility in trading, see the article "Crypto Volatility".
Baseline: the 24-hour price change should be 10–15% or more. Up 3%? Pass. Flying +35% or down 20%? Now the tape is working, now the order book shows real activity.
There's a trap here. High volatility without volume means a choppy chart and random sweeps. One big player moves price 5% in a second, then reversal, stop gets hit — you're negative despite being right on direction.
Always evaluate volatility alongside volume. Coin up 20% on $500M volume — that's a workable situation. Coin up 20% on $3M volume — that's a trap.
The spread is the difference between the best bid and ask in the order book. It eats into your P&L on entry and exit before price has moved a single tick.
The relationship is direct: the more liquid the coin, the tighter the spread. On BTC/USDT with $1B+ daily volume, the spread is around 0.011%. On an illiquid coin with $5M volume, the spread can be 4% or more.
What that means in practice: at 0.011% spread, you're paying $0.11 per $1,000 position just to enter. At 4%, you're paying $40. To break even on a coin like that, price needs to move at least 4% in your favor.
For scalping, comfortable spread is up to 0.05–0.1%. Above that — either the coin is specific to a spread-capture strategy, or it's better to skip.
I check the spread in the order book before every entry. If there's a gap between the bid and ask, I move on.
This one isn't about numbers in a screener — it's about working with the order book directly.
A density level is a cluster of limit orders sitting at one price. It shows where a large participant has placed a barrier: a buy supporting price or a sell creating resistance. Density levels are magnets and walls at the same time.
A good coin to trade: you can see clear density levels at several points in the order book, they hold for 15–30+ minutes, and they don't disappear the moment price touches them. A bad coin: the order book is empty, almost no orders, price jumps around with nothing to anchor it.
That's why professional coin selection happens through the order book, not just a screener. You open each coin, pull it into the order book view, and look. Are there density levels? Are they live? Can you read the algorithm? Yes — the coin works. No — next.
The tape (time & sales) is the live stream of real executed trades. Every print is a filled order. The frequency and size of prints tell you how "alive" the asset is right now.
Signs of a good instrument:
Signs of a dead instrument:
I've checked this on several altcoins: even coins with formally decent volume sometimes show a dead tape. Usually it's wash trading or an algo that doesn't show up in a regular screener.
![[Placeholder: screenshot of an active tape with large prints on BTC/USDT]](https://api.secret-terminal.com/uploads/grafiki_ta_stakani_8c67262e09.png)
The same coin behaves differently depending on when you're trading.
US session (3:30–10:00 PM Moscow time) — the most active. Maximum volume, clean moves, tape is flying. European session (9:00 AM–3:00 PM Moscow time) — moderate activity, good for level-based setups. Asian session (3:00–9:00 AM Moscow time) — overnight moves, often sharp and thin. Harder to work with.
When picking a coin, always account for which session phase you're in. A coin that worked perfectly on Tuesday at 5 PM can be completely dead on Friday at 2 AM.
News context matters too. Before major macro releases (CPI, Fed rate decisions), market makers pull density levels from the order book and the tape goes quiet. Entering in those moments means trading blind.
No time for deep analysis? Here's the minimum:
Coin passes every point — open the order book and look deeper. Fails three or more — next.
Average time to check one coin: 30–45 seconds. A full professional pass through the top 15 candidates takes 10–15 minutes. That's fine. Time spent at the start of a session beats an hour fighting a dead instrument.
Manually checking every coin in the order book is the only way to find a genuinely workable instrument. But where do you start? Going through a thousand coins alphabetically? Not an option.
That's where a crypto screener comes in — a tool for primary filtering by numeric criteria. For a detailed look at professional screeners, see the article "Crypto Screener".
Standard workflow:
This cuts manual work by 50–100x.
More on how to work with order flow and read the market is covered in the free course on the YouTube channel. In Lesson 4, "How Professionals Read the Market," the full analysis workflow through the order book and clusters is shown — from coin selection through to the entry decision. The course is free, part of the "Trading from Scratch" playlist.
There are moments when a coin passes all seven filters and you still shouldn't trade it.
Before a listing. A new coin hits the exchange — massive volume, tape is flying, volatility off the charts. But the order book is chaotic: the market maker hasn't established normal levels yet, density levels appear and vanish in seconds. You enter and walk into a mess. I usually wait 30–60 minutes after trading starts for the order book to stabilize.
During forced liquidations. A coin drops 15% in 5 minutes. The tape is flooded with large sells, volume is insane. A beginner sees that all criteria are met and considers a long on the bounce. But this is a liquidation cascade — see the article "What Is a Futures Liquidation" for how this works. Density levels get wiped one by one, stops get hit, price keeps falling.
During an exchange technical failure. Volume suddenly drops to zero, the tape freezes, the order book stops updating. The coin "passes" in the screener (24h data), but right now it's not trading normally. Fix: check not just the daily data, but activity in the last 5–10 minutes.
Trading off the chart instead of the order book. A clean pattern on the 4-hour chart is not a reason to enter. If the order book is empty and the tape is dead, the pattern won't play out. Or it will, but you won't be able to exit at the right price.
Picking a coin based on hype. Telegram says X is about to moon. You open the order book — no volume, no density levels, dead tape. The move is already over, or it was never real. Hype is not a criterion.
Ignoring the spread. Got into a coin with a good pattern, stop got hit, exited negative. Then you do the math: loss on the stop + spread on entry + spread on exit = actual loss that's 2x what you expected. The spread cuts into profit quietly, every time.
One instrument for all sessions. The coin you know well and make money on during the US session behaves completely differently during the Asian session. Less volume, different movement logic. These are two different markets.
Entering without understanding the algorithm. Found density levels in the order book but didn't understand what's behind them. Entered — algorithm shifted. Density levels disappear, tape reverses, position sits in the red. Classic blow-up from not knowing the specific mechanics of the instrument.
Each of these mistakes costs money. After a few times, you start feeling the difference between a live instrument and a pretty picture in a screener.
After going through the mistakes, it's worth watching from the free course — "The Order Book in Trading. Limit Orders, Liquidity, and Entry Points." It shows on real examples how to tell a working instrument from a beginner trap.
Start with the top 10 coins by volume on Binance or Bybit: BTC, ETH, SOL, BNB. High volume, predictable behavior, minimal spread. Yes, it's harder to profit there because of lower volatility compared to smaller coins — but it's much easier to learn to read the order book and tape there first. Once you start understanding the movement logic, move to altcoins with higher volatility.
Use a screener: sort by 24h price change, filter out everything with volume below $100M and fewer than 800K trades. From a thousand coins, you'll be left with 15–20 candidates. Check each one in the order book manually — 30–45 seconds per coin. Full pass takes 10–15 minutes at the start of a session.
One or two, three at most. The point isn't coverage — it's deep knowledge of specific instruments: their algorithm, the density levels they tend to show, the typical tape behavior. Trading ten coins at once is a path to mistakes and tilt.
For scalping — minimum $100–150M per 24h and an active tape with 800K+ trades. For swing trading (holding positions for hours or days), volume is less critical — exit liquidity matters more. You can work with $30–50M daily volume there.
A live density level stays at the price point for 15–30+ minutes, doesn't disappear on first touch, and actually holds the move. A fake disappears exactly when price reaches it — that's market maker manipulation. Test it: price approaches the level, the level holds and price bounces off? It's live. It vanishes on touch? Fake.
Yes. The market rotates: today's leader isn't tomorrow's. Top gainers and losers change every day. So the start of every session is the same routine: open the screener, sort by price change, see who's moving today, check the top candidates in the order book.
Depends on the strategy. MEXC has 2,000+ coins, lots of new listings, and often illiquid assets with wide spreads — that's a separate strategy (spread capture or listing plays). Binance has higher liquidity, tighter spreads, a more predictable order book. For standard density-based scalping — Binance. For niche strategies on smaller coins — MEXC.
The screener and order book work together. Here's what the workflow looks like in practice inside Secret Terminal:
API connections to Binance, Bybit, OKX, and WhiteBIT — real-time data, nothing routed through external servers. Quotes sync spot and futures: if spot starts moving before futures, that's a leading momentum signal. You're in before the move becomes obvious to most participants.
Secret Terminal is completely free. Works on Windows and macOS.
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