GFEX industrial silicon futures (SI): margin, price limit and fees
Trading parameters for main contract SI2612. Other contracts and applicable conditions are listed below.
Official GFEX parameters for trading day 26 Oct 2026 · GFEX source ↗
Main contract SI2612
By open interest on 2026-10-26 · 272,194 lots
- Speculative margin
- 10%
- Daily price limit
- ±8%
- Opening fee
- 0.01% of turnover
By contract
| Contract | Spec. margin | Hedge margin | Price limit | Fee | Close-today fee | Position limit |
|---|---|---|---|---|---|---|
| SI2612 Main | 10% | 9% | ±8% | 0.01% | 0% | 27,219 |
| SI2611 | 10% | 9% | ±8% | 0.01% | 0% | 4,864 |
| SI2701 | 10% | 9% | ±8% | 0.01% | 0% | 6,169 |
| SI2702 | 10% | 9% | ±8% | 0.01% | 0% | 3,032 |
| SI2703 | 10% | 9% | ±8% | 0.01% | 0% | 3,000 |
| SI2704 | 10% | 9% | ±8% | 0.01% | 0% | 3,000 |
| SI2705 | 10% | 9% | ±8% | 0.01% | 0% | 3,000 |
| SI2706 | 10% | 9% | ±8% | 0.01% | 0% | 3,000 |
| SI2707 | 10% | 9% | ±8% | 0.01% | 0% | 3,000 |
| SI2708 | 10% | 9% | ±8% | 0.01% | 0% | 3,000 |
| SI2709 | 10% | 9% | ±8% | 0.01% | 0% | 3,000 |
| SI2710 | 10% | 9% | ±16% | 0.01% | 0% | 3,000 |
Fees as a share of turnover unless shown per lot. Position and opening limits in lots per contract. A contract near or in its delivery month can carry a higher margin, and the exchange may list no price limit for it.
Parameter history
Parameter values compared by trading day; dates are not notice effective times.
- Position limit Client limit: 6180 lots; Non-FCM member limit: 6180 lots → Client limit: 4864 lots; Non-FCM member limit: 4864 lotsSI2611 · Compared with 2026-10-23
- Position limit Client limit: 26713 lots; Non-FCM member limit: 26713 lots → Client limit: 27219 lots; Non-FCM member limit: 27219 lotsSI2612 · Compared with 2026-10-23
- Position limit Client limit: 6055 lots; Non-FCM member limit: 6055 lots → Client limit: 6169 lots; Non-FCM member limit: 6169 lotsSI2701 · Compared with 2026-10-23
- Position limit Client limit: 3000 lots; Non-FCM member limit: 3000 lots → Client limit: 3032 lots; Non-FCM member limit: 3032 lotsSI2702 · Compared with 2026-10-23
- Position limit Client limit: 7937 lots; Non-FCM member limit: 7937 lots → Client limit: 6180 lots; Non-FCM member limit: 6180 lotsSI2611 · Compared with 2026-10-22
- Position limit Client limit: 26133 lots; Non-FCM member limit: 26133 lots → Client limit: 26713 lots; Non-FCM member limit: 26713 lotsSI2612 · Compared with 2026-10-22
Show 4 more
- Position limit Client limit: 6136 lots; Non-FCM member limit: 6136 lots → Client limit: 6055 lots; Non-FCM member limit: 6055 lotsSI2701 · Compared with 2026-10-22
- Position limit Client limit: 10130 lots; Non-FCM member limit: 10130 lots → Client limit: 7937 lots; Non-FCM member limit: 7937 lotsSI2611 · Compared with 2026-10-21
- Position limit Client limit: 23435 lots; Non-FCM member limit: 23435 lots → Client limit: 26133 lots; Non-FCM member limit: 26133 lotsSI2612 · Compared with 2026-10-21
- Position limit Client limit: 5557 lots; Non-FCM member limit: 5557 lots → Client limit: 6136 lots; Non-FCM member limit: 6136 lotsSI2701 · Compared with 2026-10-21
Record updates / comparability changes (4)
A previously unrecorded value becoming available does not establish an exchange rule change.
- Fee unit Not recorded → Share of turnoverSI2710 · Compared with 2026-10-21
- Closing fee Not recorded → 0.01% of turnoverSI2710 · Compared with 2026-10-21
- Close-today fee Not recorded → 0% of turnoverSI2710 · Compared with 2026-10-21
- Opening fee Not recorded → 0.01% of turnoverSI2710 · Compared with 2026-10-21
Notice timeline
Published notices mentioning this product, ordered by the exchange publication date.
Get an alert when GFEX changes industrial silicon margins or limits: CEC Pro.
Sources
Values are copied from the Guangzhou Futures Exchange's official daily trading and settlement parameters for 26 Oct 2026, with no adjustment. Hours: Futures Clock · Holidays: Markets Open Today. The exchange's own publication prevails.