As the terms of service make clear, manipulative behavior is not tolerated on FTX.  Any attempts to do so may result in account termination at FTX's sole discretion.

Specifications

*All markets on the platform have a maximum quantity of 99,999,999 per order. There is a minimum provide (maker) size of 0.001 on BTC-PERP and a minimum provide (maker) size of 1 on RUNE-PERP, this only applies when you make more than 10 orders per hour smaller than 0.001 for BTC-PERP and smaller than 1 for RUNE-PERP.   This is further explained in Complete Futures Specs.

**Position limit: This limits the total absolute position size one can open to per-(sub)account, including open orders.

Accounts

Position notional: position size * Market price

IMF Factor: multiplier on the margin required for a coin.

Base IMF: the minimum initial margin fraction needed.  This is 1 / maximum leverage.

Position initial margin fraction: max(Base IMF, IMF factor * sqrt(position open size in tokens)) * IMF weight

Position maintenance margin fraction: max(3%, 0.6 * position initial margin fraction)

(3% if 20x maximum leverage or less, 0.60% if 50x maximum leverage or more. At this point, the max leverage means the max allowable leverage of your account instead of the leverage you set yourself)

Position unrealized PNL:  size * (future mark price - position entry price)

Collateral: USD balance in futures wallet plus 0.95 times BTC and USDT balance marked to latest index price.

Free collateral: amount of USD that can be withdrawn from exchange, =min(collateral, collateral + unrealized PNL) - [amount of collateral tied up in open orders]

Total account value: collateral + unrealized pnl

Total position notional: sum of abs(position notional) across all positions

Margin fraction [MF]: total account value / total position notional

Maintenance Margin Fraction Requirement [MMF]: the minimum MF needed to avoid getting liquidated, equal to average of position MMF weighed by position notional

Auto Close Margin Fraction [ACMF]: the minimum MF needed to avoid getting closed against the backstop liquidity provider or other users, = max(MMF / 2, MMF - 0.06)

Zero Price (ZP): MP * (1 - MF) if long, MP * (1 + MF) if short.  The mark price that would set an account’s total account value to 0.

Position maintenance collateral used: Position maintenance margin fraction requirement * abs(position notional)

Position Margin Per Dollar (PMPD): [(Position maintenance collateral used) / (sum of Position maintenance collateral used for all account positions)] * Total account value / abs(position notional)

Position Zero Price (PZP): MP * (1 - PMPD) if long, MP * (1 + PMPD) if short. 

Liquidation Distance: % move in futures that would make MF = MMF.

Position open size: Max(abs(size if all buy orders get filled), abs(size if all sell orders get filled))

Position open notional: position open size * MP

Total open position notional: sum of abs(position open notional) across all positions

Open margin fraction [OMF]: max(0,(min(total account value, collateral)- size from spot margin open orders)) / total open position notional 

Initial Margin Fraction Requirement [IMF]: the minimum OMF needed to increase position size, equal to average of position IMF for all account positions weighed by position open notional

Unused collateral: max(OMF - IMF, 0) * total open position notional

Backstop Liquidity Provider [BLP]: an account that promises to take on liquidating accounts’ positions

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