LEARN BID-ASK SPREAD RATIO INDEX IN 3 MINUTES ——BLOCKCHAIN 101

Ever Wondered What Bid-Ask Spread and Order Book Depth Really Mean?For many newbies entering crypto, the term “Bid-Ask Spread Ratio Index” sounds like some technical jargon only exchange developers would understand. It feels distant, complicated, and definitely not beginner-friendly.But hold up — today, we’re going to explain this powerful trading indicator in the simplest, most conversational way possible. In fact, if you’re on SuperEx, you can easily use this metric to gauge market momentum like a pro.

Just give us 3 minutes — and you’ll walk away knowing how to read this “market thermometer” and detect trend signals hiding in the deep end of the order book.

First Things First: What Are BID and ASK?

Bid: This is the price someone is willing to pay to buy a coin.
Example: You place a bid of 105,000 USDT to buy BTC.
Ask: This is the price someone wants to sell the coin for.
Example: You place an ask at 105,200 USDT to sell BTC.

The gap between these two prices is called the Spread. Sellers want to earn more; buyers want to pay less. The bigger the spread, the more cautious the market is. A tighter spread usually means active trading and buyers/sellers are finding common ground.

So What Is the Bid-Ask Spread Ratio Index?

The Bid-Ask Spread Ratio Index (BASR) measures the relationship between price spread and order book depth. It doesn’t just compare Bid and Ask prices — it dives deeper into how strong each side of the order book is.

Think of it this way:

Imagine walking into a “trading pit” at a crypto exchange. On the left side, there’s a huge crowd aggressively bidding to buy BTC. On the right, only a few scattered sellers are hanging around.You’d probably sense the market is bullish, right? Everyone’s eager to buy.The BASR takes this kind of “order book atmosphere” and turns it into a number — quantifying how imbalanced the buyer/seller activity is.

How Is the BASR Calculated?

1. Basic Spread Ratio Formula:

At its core:
Spread Ratio = Bid Price / Ask Price

For example:

Bid (best buy offer) = 0.999
Ask (best sell offer) = 1.001
Spread Ratio = 0.999 / 1.001 ≈ 0.998

If the ratio is close to 1, buyers are bidding close to the asking price — decent demand.
If the ratio drops lower, say 0.95, it means buyers are far from matching sellers — the market is cautious.

2. Add Order Book Depth = Much More Useful

We don’t just want to look at one price level — we care about how much people are willing to buy or sell.

So, we factor in:

Bid Volume
Ask Volume

Then:
Spread Ratio Index = (Bid Volume / Ask Volume) × (Bid Price / Ask Price)

This gives you a way more accurate picture. You’re not just comparing price levels, but also how heavy each side is in terms of volume and willingness.

What Does the BASR Value Actually Tell You?

1. Ratio > 1

Buyer strength dominates. Market leans bullish.
Especially strong when bid volumes are also increasing.

Real scenario:On SuperEx, a coin suddenly shows a BASR > 1.5, and the buy side keeps stacking.
Interpretation: Whales might be scooping up, anticipating a price jump.

2. Ratio < 1

Sellers outweigh buyers. Market could enter a correction.
Sell-side pressure is building.

Real scenario:BASR drops below 0.7, and ask orders are piling up.
Translation: Investors are getting nervous and looking to exit — bearish signal.

3. Ratio ~ 1

Tug-of-war. Market is in a standoff.
Often seen during consolidation before a major move.

Tip: Combine this with other tools like volume, candlestick structure, and news to avoid false signals.

So How Is BASR Different from Traditional Bid-Ask Spread?

Traditional Bid-Ask Spread just shows the price gap.But BASR = price gap + order depth + sentiment.

Think of it this way:

Spread is a snapshot.
Spread Ratio Index is a multi-angle camera view of the whole battlefield.

How Can Newbies Practice with This Indicator?

Head to SuperEx, pick a volatile coin — like those in the MEME or AI sectors.Watch the order book for 15 minutes per day.Write down the Spread Ratio values, and check the coin’s performance an hour later.Do this for 2 weeks, and you’ll start developing an instinct for how this ratio reflects price movement.

Final Thoughts

The Bid-Ask Spread Ratio Index may sound complex, but its logic is super intuitive:Who’s more aggressive? Who’s bringing more volume? That side is likely to steer the market.It’s one of the earliest indicators to capture capital flow and order book sentiment.