Lighter IWM perpetual
IWM
As of 2026-10-15 05:10 UTC, IWM on Lighter has a collected rate of +0.0032% over 8h, or +3.50% simple annualised; its collected settlement interval is 1h, with up to 10x leverage. Aster has a lower rate for longs at 0.00%.
How do I select the margin tier for IWM?
This table selects tiers by position notional in USD, not by the amount of margin deposited. The first tier starts at 0.
Further readingHow liquidation price is calculated: tiered maintenance margin and deductionsHow funding fees work: amounts, signs and settlement
Settled history is not currently available for this contract. The latest funding snapshot cannot establish the actual funding cost over the past 30 days.
Maintenance margin ladder
No deduction · An isolated-margin estimate for linear contracts; excludes closing fees, accrued funding, auto-added margin and other positions.
| Tier | Range | Maintenance rate | Max leverage | Deduction |
|---|---|---|---|---|
| 1 | 0 – ∞ quote | 6.0000% | 10.00x | — |
Contract specification
Quote currency: USD · Settlement currency: USDC · Settlement interval: 1h. Lot size uses the venue’s original order unit; the calculator takes base-asset quantity. Settlement intervals and times on every venue.
The same asset elsewhere
| Venue | Contract | Rate period | Annualised |
|---|---|---|---|
| Aster | IWMUSDT | 8h | 0.00% |
| Bitget | IWMUSDT | 8h | 0.00% |
| Bybit | IWMUSDT | 8h | 0.00% |
| Gate | IWM_USDT | 8h | 0.00% |
| OKX | IWM-USDT-SWAP | 8h | 0.00% |
| Lighter this page | IWM | 8h | +3.50% |
Common questions
What is the Lighter IWM funding rate?
The latest collected Lighter IWM funding rate is +0.0032% per 8h rate period, or +3.50% simple annualised. The rate is quoted over 8h but settles every 1h. At this rate longs pay shorts.
How often is funding charged on Lighter IWM?
The collected settlement interval is 1h, normally 24 times a day. Venues can change it again; confirm the next settlement time on the venue's contract page.
What is the maximum leverage on Lighter IWM?
The collected leverage cap for Lighter IWM is 10x, on a single margin tier that applies at every position size.
What is the maintenance margin rate on Lighter IWM?
A single tier applies at every position size, requiring 6.0000%. This venue applies no deduction: maintenance margin = notional × the rate of the tier the position falls in.
Which venue has the lowest IWM funding cost for longs?
For a long position, Aster currently has the lowest rate at 0.00% annualised; this page's Lighter is at +3.50%. Negative funding pays longs. Trading costs are excluded, and the cash-flow direction reverses for shorts.
Observation time and verification
This contract’s funding was observed at 2026-10-15 05:10 UTC; an unsettled quote may still change. A dash denotes missing usable data, not zero. Lighter official data source · Funding methodology