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Scale ladder

Place N limit orders evenly spaced between two prices, with the total size split across the rungs. Use this when you have a band of prices you'd be happy filling at — a support zone for entries, a resistance zone for exits. Unlike a chaser, the orders sit static; unlike a TWAP, they're all live at once.

Minimum viable​

scale buy $1000 into 10 from -0.25% to -1%

Ten limit buys totalling $1000 notional, evenly spaced between -0.25% and -1% from the last price on the focused symbol. Each rung is $100.

Variations​

scale sell $2000 into 20 from 50000 to 48500 reduce

Reduce-only sell ladder using absolute prices. Use this to scale out of a long with 20 rungs between 50000 and 48500.

scale buy 5 into 10 from 31000 to 32000 ETHUSDT

Raw contract size (5) instead of notional, with an explicit symbol override. Mix and match — size + range can each be absolute or relative.

scale sell $10000 into 25 from 50000 to 48500 reduce taker

taker drops the default post-only TIF on every rung. Use this when you want the ladder to be immediately fillable if price walks through it (e.g. a panic-exit ladder) rather than rejecting at exchange-side post-only checks.

scale buy $500 into 5 from $bid -0.1% to $bid -0.5%

Anchor both endpoints to $bid with inline offsets. Same anchors that work on at <price> work here — see Variables.

loop longs: scale sell 50%pos into 5 from $entry +1% to $entry +3% reduce

Per-long ladder-out at 5 rungs between +1% and +3% of each position's entry. Combines with loop for fan-out.

Gotchas​

  • cubic and icubic are accepted by the parser as distribution modifiers, but distribution today is still even — they're no-ops. Don't rely on them for weighted ladders.
  • Default TIF is post-only. If any rung would cross the book at placement time the exchange rejects it. Add taker to drop post-only.
  • The ladder errors before placing any order if rounding would shrink any rung to zero size — similar to swarm. Either reduce into <N> or increase total size.
  • Order of from / to doesn't matter — the ladder fills the range either way. But the rung at from is placed first, so if you want the closest-to- market rung in first, put it on the from side.
  • Stops are not ladderable via scale — for trailing exits across rungs use a per-rung stop or Trailing stop.
  • reduce here is wired through to each rung's reduce-only flag (unlike twap reduce). It's a real per-order guarantee.