MAMAYtrading terminal

Analyze money, not drawings

9 min read · Open interest, delta, liquidations, funding and walls: who is building a position right now and who is vulnerable.

Level:

Short version for experts: tables, lists and screenshots only.

Words in this lesson (16)
Long — Buying in the hope that the price will rise. Buy lower, sell higher.
Short — Selling in the hope that the price will fall: you sell something borrowed, then buy it back cheaper. You make money when the price drops.
Stop — A price chosen in advance at which the trade is closed at a loss, so the loss doesn't grow bigger.
Funding — A regular payment between those who are long and those who are short on a perpetual futures contract. Who pays depends on whether the futures price is above or below spot.
Leverage — Money borrowed from the exchange. With 10x leverage, your $100 opens a $1,000 position: both profit and loss are ten times bigger.
Liquidation — The exchange force-closes a position when the loss has eaten all the collateral. The collateral is lost.
Order book — The list of all buy and sell orders at every price at this very second.
Wall — A very large order in the order book at one price — many times bigger than its neighbors. It often acts as a wall for the price.
Open interest — How many futures positions are currently open in the market. Rising — new money is coming in; falling — money is leaving.
Delta — The difference between market buys and market sells over a period. Positive — buyers are more aggressive; negative — sellers are.
Level — A price where the market has already turned before. Support is below the price, resistance is above it.
Breakout — The price has gone through a level and held beyond it.
Correction (pullback) — A temporary move against the main direction.
Screener — A filtering program: it scans hundreds of stocks or coins and shows only those that match the given criteria.
Market order — An order to "buy or sell right now at the best available price". It fills immediately.
Position — An open trade: what you have bought or sold and haven't closed yet.

The main idea

Price isn't moved by lines on a chart but by money: someone buys, someone sells, someone gets closed out by the exchange. Lines and patterns are the trace money has already left behind. It's more useful to look at the money itself.

The futures market has five metrics for this. They're public — exchanges publish them for everyone.

MetricWhat question it answers
Open interestis money coming into the market or leaving?
Deltawho is more aggressive right now — buyers or sellers?
Liquidationswho just got wiped out?
Fundingwhich side has the crowd piled into?
Wallswhere are the large orders sitting?

No single metric decides anything on its own. The meaning appears when you read them together with the price.

Terminal: open interest, liquidations and funding panels below the chart
Terminal: open interest, liquidations and funding panels below the chart

1. Open interest

Open interest (OI) is how many futures positions are currently open. Each position is one long and one short facing each other.

  • OI rises — new positions are opening, money is coming into the market.
  • OI falls — positions are closing, money is leaving.

The main table of the lesson:

PriceOIWhat's happeningHow to treat it
upupnew buyers are coming inthe rise is real, money is behind it
updownshorts are closinga rise on other people's stops — the fuel will run out soon
downupnew sellers are coming inthe fall is real
downdownlongs are giving up and leavingthe sell-off is running out of steam

In MAMAY: the "OI" button on the chart in "Terminal" — the "OI · aggregated" panel (the total across exchanges).

2. Delta

Someone always initiates a trade: either a buyer takes "at market" or a seller gives "at market". Delta is the difference between such buys and sells.

  • Positive delta — buyers are more aggressive.
  • Negative delta — sellers are more aggressive.

The most interesting thing is a divergence between delta and price:

  • delta is strongly positive but the price isn't rising — someone big is calmly selling to everyone who wants to buy with limit orders. The buyers are wasting their strength;
  • delta is negative but the price isn't falling — someone big is just as calmly buying it all up.

In MAMAY the trade flow is visible in the "Order book" panel: footprint and tape modes.

3. Liquidations

A liquidation is the exchange force-closing a leveraged position. Closing a long is a sale, closing a short is a purchase. So liquidations move the price themselves and set off a chain: the price fell → longs got liquidated → their sales pushed the price lower → the next ones got liquidated.

How to read them:

  • a spike of long liquidations on a fall — weak buyers have been wiped out. There's nobody left to sell — often this is the end of the move, not the beginning;
  • a spike of short liquidations on a rise — the same, mirrored.

In MAMAY: the "Liquidations · aggregated" panel below the chart and the "Liq. zones" layer — an estimate of the prices where future liquidations have piled up. The price often heads toward such zones: other people's stops sit there.

4. Funding

Funding shows the crowd's lean.

  • High positive — everyone is long and paying for it. The market is overheated to the upside.
  • Strongly negative — everyone is short.

The crowd can be right for a long time, so funding is not an entry signal. It's a warning: when everyone stands on one side, a small push the other way is enough to start liquidations.

In MAMAY: the "Funding" panel below the chart, weighted by the exchanges' open interest.

5. Walls

A wall is a very large limit order at one price.

  • A real wall holds and takes the hit: the price runs into it.
  • A fake one disappears when the price approaches: it was placed to scare or to nudge.

In MAMAY: the "Walls" layer — an order book heatmap on the chart. The "MAMAY Breakout" screener separately marks walls as real or fake.

Reading them together: three pictures

Picture 1. A healthy rise. The price rises, OI rises, delta is positive, funding is moderate. New buyers are coming in and paying a little for it. We look for an entry on a pullback.

Picture 2. A rise on its last breath. The price rises, OI falls, short liquidations are happening, funding is high. The rise rests on other people's shorts being closed. Too late to buy.

Picture 3. A trap. The price sits below a level, OI is rising fast, funding is turning positive. The crowd is loading up on longs, expecting a breakout. Above the price — a wall, below the price — a zone of long liquidations. The vulnerable side is the buyers: if there's no breakout, they'll be carried down.

The question we ask every time

Who is building a position right now, who is closing it, and which side is vulnerable?

The answer matters more than any pattern on the chart. MAMAY's levels, waves and scenarios come after that — to pick the exact entry price, stop and target.

What this approach doesn't replace

Risk per trade, the stop and position size. Reading correctly where the money will go and then losing the account to leverage is a common story.

↗ Open "Terminal" in MAMAY ▶ "MAMAY Breakout"

Learn where you trade

These lessons live inside the MAMAY terminal. There they come with a mentor powered by your AI that explains the screen you have open right now, reviews of your trades, and everything hidden on the site: screener rules, settings and live examples. Learning and manual trading are free.

Windows 10 and 11 · exchange keys stay on your computer · how the mentor works