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Most exchanges decide how much leverage you can use based on how big the trade is. On small positions, the cap can be 100x or higher. On bigger ones, the exchange scales it back, and the maintenance margin behind the trade goes up too.
So a 50x leverage trade at $5,000 and a 50x trade at $500,000 aren’t the same trade. The bigger one has less room before the exchange closes it out.
When a position crosses into a higher tier, the maintenance margin rate steps up. A higher rate moves the liquidation price closer to the entry point. This can happen without any change to the leverage selected on the ticket. The size of the trade is what triggers it.
If you trade leveraged futures, these four things are worth knowing before you size up.
A leverage tier is a range of position sizes, each with its own maintenance margin rate and maximum leverage. The larger the position, the higher the maintenance margin rate the exchange applies. A higher maintenance margin rate moves the liquidation price closer to entry.
Exchanges don’t often price every position the same way. They run a tier table: rows of position sizes, each row with its own maintenance margin requirement and its own cap on leverage.
On a small position, the exchange is fine with you running max leverage and not much margin behind it. On a much bigger one from the same trader, they cap your leverage and demand more margin to hold it. It’s a sliding scale based on size.
The bottom tier covers positions with a trade size of up to around $50,000, with the maintenance margin near 0.4% and a maximum leverage as high as 100x to 125x depending on the exchange.
Past that, the maintenance margin steps up, and the maximum leverage comes down. By the time you’re carrying the largest positions, you’re looking at a maintenance margin of 25% or more and a maximum leverage of one or two.
Most retail traders never see those tiers. They exist for whales.
Cutoffs vary by exchange and by asset. Same general shape everywhere, though. Size up enough, and the exchange tightens what you’re allowed to do with the position.
These mechanics also matter when comparing crypto futures exchanges, since differences in leverage tiers, maintenance margin requirements, and liquidation rules can change the risk of otherwise identical positions.
The table below shows OKX BTC-USDT-SWAP verified tier data as a concrete reference. The tier boundaries on other exchanges follow the same pattern but sit at different position-size thresholds.
| Tier | Position Size (BTC) | Approx. USD at $100k BTC | MMR | Max Leverage |
|---|---|---|---|---|
| Tier 1 | 0–10 BTC | 0–$1,000,000 | 0.40% | 100x |
| Tier 2 | 10–50 BTC | $1M–$5M | 0.50% | 66.66x |
| Tier 3 | 50–200 BTC | $5M–$20M | 0.75% | 50x |
| Tier 4 | 200–400 BTC | $20M–$40M | 1.25% | 40x |
| Tier 5 | 400–600 BTC | $40M–$60M | 1.75% | 33.33x |
The table below shows what those rate differences do to the liquidation price on a 50x leveraged long at $100,000 entry.
| MMR Rate | Available Margin (50x long) | Approx. Liquidation Price |
|---|---|---|
| 0.40% | 1.60% below entry | ~$98,400 |
| 0.50% | 1.50% below entry | ~$98,500 |
| 0.75% | 1.25% below entry | ~$98,750 |
| 1.25% | 0.75% below entry | ~$99,250 |
| 1.75% | 0.25% below entry | ~$99,750 |
What most traders think: 50x leverage carries the same risk regardless of position size.
What actually happens: The maintenance margin rate steps up at higher position sizes, moving the liquidation price closer to entry even when the leverage selection on the ticket is unchanged.
The tier system exists to protect the exchange, not the trader. A $5,000 liquidation clears through the order book without moving the market. A $50,000,000 forced close is a different event entirely.
The small one clears in the order book, and nobody notices. The whale’s forced close moves the market on its own. When that happens, the insurance fund and the other traders on the exchange end up absorbing what’s left over.
So the fix, from their side, is to charge more margin the bigger a position gets. A higher requirement means the position gets force-closed sooner, with more of the trader’s own equity still sitting there when the engine takes over. That extra cushion gives the exchange room to unwind the size in pieces, instead of dumping it on the book all at once and burning through what’s left of the margin before the position is gone.
Volatility is the other piece. A small position can sit at 100x because a normal move isn’t going to wipe out the order book of other small positions like it.
A large position at 100x in fast conditions is a different story. Capping leverage at higher tiers limits how concentrated a single trader’s exposure can get, which limits how much damage any one liquidation can do on its way out.
The maintenance margin rate is the floor your equity has to stay above for the position to keep breathing. When equity hits that floor, the engine closes you. The higher that floor sits, the closer your liquidation price ends up sitting to your entry, because there’s less room between where the trade is and where the engine fires.
Liquidation does not fire on the chart price. It fires on mark price, the composite price the exchange calculates from spot markets across multiple venues.
Leverage tiers raise that floor in steps. A position in the bottom tier on a major exchange sits on a floor of around 0.4% of the trade size. The second tier moves it to around 0.5%. By the middle of the table, you’re at 1%, then 2.5%, sometimes higher than that.
Once you do the math on it, your leverage selection and your entry price aren’t enough to actually know where the liquidation level is. You also need the tier the position lands in. A 50x trade on a $40,000 position and a 50x trade on a $400,000 position can have very different liquidation prices, because the bigger one drops into a higher tier with a higher floor under it.
Say you open a 50x long on BTC at $100,000.
You put up $400 of margin, so your position value in dollars is $20,000. That puts you in the bottom tier. The maintenance margin requirement is around 0.4%, which is $80 against your $400.
You’ve got about $320 of room before the engine fires. That room covers roughly a 1.6 percent move against the position on $20,000 of trade size, so your liquidation level sits near $98,400.
Now run the same setup bigger. Still 50x. But this time you’re putting up $20,000 of margin, which means your position value in dollars is $1,000,000.
That bumps you up the table into a tier where the maintenance margin requirement is 0.75%. Now the requirement is $7,500 against your $20,000 of margin, leaving you with $12,500 of room.
That covers a 1.25 percent move on $1,000,000 of trade size. Liquidation level near $98,750.
Same selection on the ticket. Same entry price. A noticeably tighter trade.
The worked examples below show the same 50x long at two different sizes. Both trades have the same entry price and the same leverage. The tier is the only variable that changes.
Same leverage, same entry price, different position sizes. The liquidation levels diverge.
| Parameter | Small Position | Large Position |
|---|---|---|
| Entry Price | $100,000 | $100,000 |
| Leverage | 50x | 50x |
| Margin | $400 | $20,000 |
| Notional Size | $20,000 | $1,000,000 |
| Tier (illustrative) | Tier 1 | Higher Tier |
| MMR Rate (illustrative) | 0.40% | 0.75% |
| Maintenance Margin Required | $80 | $7,500 |
| Available Margin | $320 (1.60%) | $12,500 (1.25%) |
| Liquidation Price (Long) | ~$98,400 | ~$98,750 |
These figures use illustrative tier rates (0.40% and 0.75%) based on confirmed exchange data. Actual liquidation prices vary by exchange, tier structure, margin mode, and fee components. For position-specific calculations, use the liquidation price calculator.
The size alone took the room from 1.6 percent to 1.25 percent. More than a fifth of the buffer is gone, even though nothing else changed about how you’d describe the trade to anyone else.
The two positions above use the same leverage and the same entry price. The larger one is liquidated on a smaller price move (1.25% versus 1.60%) because scaling up moved it into a higher tier. The difference is invisible on the order ticket. The leverage number displayed does not change when the tier does.
The thing about scaling up is that the math under the trade can change even when the ticket stays the same. A 50x selection on a small trade looks identical on the ticket to a 50x selection on a much bigger one.
But the tier the position lands in is what’s actually setting the maintenance margin. When that tier shifts up, the maintenance margin shifts up with it, and your liquidation price ends up closer to your entry. None of that requires the chart to move at all.
Doubling your size at the same leverage might keep you in the same tier, or it might push you into the next one up. If it pushes you up, the maintenance margin steps up too.
Your liquidation level slides closer. The margin capital you had on the smaller trade is gone before you’ve added another contract.
That’s the trap with over-leveraged sizing. The number on the ticket says 50x.
The maintenance margin actually pricing the risk is working harder than 50x suggests, because the tier underneath is more demanding than at the smaller size. The bigger you go, the bigger the gap between the leverage you picked and the margin the exchange is really charging you.
When sizing up, the relevant maintenance margin is the one for the new tier, not the smaller position’s. The bigger trade may be structurally tighter than the one that came before it.
Tiers don’t just affect what’s happening in your account. They also shape what happens at the market level when a big liquidation actually fires.
When a whale gets liquidated in a higher tier, the exchange has a built-in cushion it uses to close the position cleanly. The trade gets force-closed sooner, with more of the trader’s equity still in the account, which gives the engine room to unwind the size in pieces. That keeps the close from blowing past the margin and the insurance fund from eating a bigger loss than it has to.
The flip side, though, is that big trades still hit the order book hard when they close. Cleanly liquidated or not, a multi-million dollar forced exit dumps real size into the book.
If the market’s already stretched, that one close can be the one that kicks off a liquidation cascade. So the tier system limits how much damage a single trader can do to the exchange. It doesn’t do much to limit how much damage that same trader can do to the market.
A whale can have enough margin on paper, but the market still may not have enough liquidity to close their position cleanly. When the liquidation engine starts selling, a thin order book can turn one big exit into a sharp price move.
A long BTC position grows in dollar value as BTC price rises. That growth can push the position past a tier boundary mid-trade, stepping up the maintenance margin rate and moving the liquidation price closer to entry without any trade action. The tier a position lands in at entry is not necessarily the tier it stays in.
Yes. The tier is based on position value, which changes as the mark price moves. A long BTC position grows in dollar value as BTC price rises. If that growth pushes the position past a tier boundary, the maintenance margin rate steps up automatically, moving the liquidation price closer to entry without any trade action.
Yes. Most exchanges publish their tier tables publicly. Position value, calculated as leverage multiplied by margin, determines the applicable tier. Checking the planned position size against the tier table before execution shows the maintenance margin rate that will apply and the resulting liquidation distance.
Adding to an existing position increases its total dollar value. If the larger value crosses into a higher tier, the maintenance margin rate steps up. A higher rate moves the liquidation price closer to the entry price, even though the leverage setting on the ticket is unchanged.
No. Tier boundaries, maintenance margin rates, and maximum leverage limits differ by exchange and by instrument. Two 50x BTC trades at the same position size on different exchanges can carry different liquidation distances because of their different tier structures.
Exchange tier tables can change. When they do, existing open positions may fall into different effective tiers, which changes the maintenance margin rate and the liquidation price for those positions without any action from the trader. Exchanges typically announce changes in advance.
Leverage tiers are why picking 50x on a small trade isn’t the same trade as picking 50x on a big one. The number on the ticket matches. The maintenance margin pricing the risk doesn’t.
The tier the new position lands in is what determines the actual maintenance margin and the actual liquidation level.
Tier boundaries and maintenance margin rates differ across exchanges. Why different exchanges produce different liquidation prices explains the structural reasons behind those differences.
This article is published under Leverage.Trading’s leverage trading & crypto derivatives education , an independent risk-first learning system built to help traders quantify and manage risk before trading.
