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Recent Trading Announcements

XBTZ16 Now Live
10/26/2016, 4:58:12 PM

By popular demand, XBTZ16, a December 30 2016 Bitcoin/USD Inverse contract, is now live.

Important Changes – Altcoin Derivative Products
10/26/2016, 4:56:47 PM

Effective Friday 4th November 12:00 UTC, a significant number of changes will be made to the Altcoin derivative product line. Leverage on some products will rise, and all remaining Altcoin swap products will move to 7-day expiring futures products.

Increased Leverage on Altcoin Products

Leverage on the following Altcoin products will be increased:

  • ETC7D will increase to 20x
  • XMR7D will increase to 20x
  • FCT7D will increase to 20x
  • LTC7D will increase to 33x

Altcoin Swap Products Shift to 7-Day Futures Products

All remaining Altcoin swap products will expire, and will be replaced with 7-day expiring futures products. After the change, there will be no funding charged on any Altcoin product.

In addition, LSKXBT will be delisted, and will not be converted to a futures product.

All expiring swaps will settle on the 30-minute TWAP Index Price at the settlement time of Friday 4th November 12:00 UTC.

A Note on XBJ Price Anomalies
10/24/2016, 8:20:51 PM


We are aware of anomalous price movements on XBJ contracts occurring at approximately 10:47 and 15:37 UTC. They were triggered due to very quick movement at the reference exchange, Quoine.

We are still investigating the root cause and how to protect the index from it. In the meantime, we have moved the Mark Method of XBJ-series contracts to a new type, LastPriceProtected. The rules are simple:

  • A price band is created equal to 1 maintenance margin (0.5x each way) around the previously-calculated Mark Price (also known as the Fair Price).
  • If the Last Price falls within this band, it is used as Mark.
  • If not, the Mark is capped within this band. If the band moves, the Mark will stay. It is allowed to move toward the band but not away from it.

For API consumers, this field has existed since summer and is called lastPriceProtected.

New Feature: Amend Orders
10/23/2016, 3:31:37 PM

We’re proud to announce that you can now amend existing orders directly from the trade interface!

Simply click on the price, quantity, or stop price you wish to edit. Press the Enter key or the green checkmark to commit the change. The Escape key or red x cancels the amend.

A few details:

  • Sell orders cannot be amended to become Buy orders, and vice-versa.
  • Amending quantity to 0 cancels the order.
  • Your position in the price/time queue is maintained if you lower your quantity, and lost if you increase your quantity or change your limit price.
  • Fully executed or canceled orders cannot be amended.
Regarding Zcash Futures
10/12/2016, 8:01:48 PM

We have recently received a number of enquiries regarding the settlement of the Zcash December 30 Futures contract, ZECZ16:

Choice of Reference Exchange

Zcash will begin mining on October 28, 2016. There has been no indication yet as to which markets may list ZEC after this date. Furthermore, ZEC mining will have a slow start, with the block reward linearly increasing from 0 to 12.5 ZEC over the first 20,000 blocks (approximately 34 days).

Because of this difficulty to source ZEC, it may delay listing on a spot exchange. As such, BitMEX will choose a reference exchange by December 1, 2016 based on liquidity and reputation.

Contingency Plan

If there does not happen to be any spot trading at all for ZEC by December 30, 2016 then BitMEX will settle the contract at the Bitcoin equivalent price raised in the last round of investment.

Last summer, Zcash raised $2m for 6.25% of the company, which includes the Founder’s Reward of 2.1m coins (10% of total supply). Hence the investors effectively paid $15.24 per ZEC in this last round of funding. Further information can be read in the z.cash blog here.

Hence, the Bitcoin equivalent of $15.24 will be the Settlement Price in case of no trading at Expiry on December 30, 12:00 UTC.