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COIN RATIO

6 min · DYOR Education
FreeCOIN · Order book
Goal

Learn COIN RATIO: the ratio of bids to asks, which doesn't depend on the size of the coin.

COIN RATIO on BTC/USDT: bid-to-ask ratio at 3% depth
COIN RATIO on BTC/USDT: bid-to-ask ratio at 3% depth
What it shows

How many times bids exceed asks at each depth. Formula: bid ÷ ask.

  • 1 — equal. Above 1 — more bids. Below 1 — more asks.
  • Seven lines, one per depth: 1.5 · 3 · 5 · 8 · 15 · 30 · 60%.
  • The scale is logarithmic: 2 and 0.5 are equally far from 1.

How it differs from COIN B&A: a ratio doesn't depend on the size of the coin. RATIO = 2 on BTC and RATIO = 2 on a small altcoin mean the same thing — twice as many bids.

bidsasksdepth 3%$90M$40Mbid ÷ ask = 90 ÷ 40 = 2.251 — equal; 2 and 0.5 are equally far from 1, log scale
The ratio doesn't depend on the size of the coin: 2.25 on BTC and 2.25 on a small altcoin are the same.
What it's for

Read the skew as one number that means the same for any coin. Then one threshold fits all coins.

For example.

  • RATIO 3% = 2 on BTC and RATIO 3% = 2 on a small coin mean the same thing: twice as many bids as asks. In money that could be $200M versus $2M.
  • That's why the condition “RATIO 3% > 2” works for any coin — in an alert or in the Market Depths screener. There it shows which coins have the biggest buyer edge.
  • That won't work with B&A: each coin needs its own dollar threshold.
Where to find it
Indicators›COIN›Order book›COIN RATIO
Settings
FieldOptionsDefaultWhat it changes
Market TypeSPOT
FUTURES		SPOTWhich order book to use: Binance spot or futures.
- Want orders from people buying the coin itself — SPOT.
- Want orders from people trading with leverage — FUTURES.
On Coinbase and Hyperliquid the switch has no effect: Coinbase is spot only, Hyperliquid is futures only; the value follows the exchange automatically.
Division formulaBID/ASK
ASK/BID
NORMALIZED		BID/ASKWhat to divide by what.
NORMALIZED — the same side difference, but on a −100 to +100 scale: zero is equal, color follows the sign.

- Want “above 1” to mean “more bids” — BID/ASK.
- Want the opposite — ASK/BID.
- Want a symmetric scale with zero in the middle — NORMALIZED.
BTC PairsALL
USDT ONLY		ALLWorks only on Binance and only for BTC.
ALL — the sum of three pairs: BTCUSDT + BTCUSDC + BTCFDUSD.
USDT ONLY — the BTCUSDT pair only.

For other Binance coins, data is always for the USDT pair; the input changes nothing.
No effect on Coinbase and Hyperliquid: Bitcoin has one pair there — BTC/USD and BTC/USDC.
- Want all of Binance's Bitcoin — ALL.
- Want to compare with a source that counts only BTCUSDT — USDT ONLY.
ExchangeChart
Binance
Coinbase
Hyperliquid		ChartWhich exchange to take data from:
Chart — the same one as the chart.
Binance — spot and futures, USDT pairs.
Coinbase — spot only, USD pairs.
Hyperliquid — perpetual futures only, USDC pairs.

Coinbase and Hyperliquid are available on paid plans (the “Exchanges” screen).
They have candles, trades and order book.
Derivatives, liquidations and loans show “no data” for them.
- Want to compare one coin across exchanges — add the indicator several times and pick a different exchange in each.

By default one depth is visible — 3%. Turn on the other depths in the Style tab: tick the line you need.

In alerts

Metric COIN RATIO. Condition fields:

CoinMarket TypeBTC pairsTimeframeDelta PercentagePrimary Target

“Delta Percentage” is the depth. “Primary Target” is the formula: bid/ask, ask/bid or normalized. “BTC pairs” appears only when the coin is BTC.

TOTAL

TOTAL RATIO — the same summed across the whole market. Adds the Total Type field.

Try it yourself
  1. Turn on COIN RATIO. Hover over any bar and read the values at 1.5% and 60%.
  2. Divide bids by asks from COIN B&A 3% and compare with the 3% line.
What you should get. The ratio matches your division. Near and far depths give different numbers — that's normal.
Takeaway

RATIO = bid ÷ ask at a depth. 1 — equal, 2 — twice as many bids, 0.5 — half as many. The scale is logarithmic, so 2 and 0.5 are symmetric. The value is comparable across any coins.

Quick check

COIN RATIO = 2 at 3% depth means…

Show answer

Correct answer: Within 3% of the price there are twice as many bids as asks

Quick check

RATIO = 2 on BTC and RATIO = 2 on a small altcoin mean…

Show answer

Correct answer: The same thing: twice as many bids as asks

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