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Recent Trading Announcements

Development Notes: Feb 2, 2018
2018-2-3 00:51:00

About 13:00 UTC today, the BitMEX platform sustained a record amount of traffic, both in orders and in number of realtime subscriptions. This traffic caused our proxies’ network traffic to be throttled on our cloud host, which caused data streams to back up. Those data streams eventually backed up enough that they caused a cascade of website users to request new data images, which was a volume of traffic large enough to render the site unusable.

We recovered the platform by temporarily disabling trading, reprovisioning the effected services, and restarting trading. Performance remained sluggish for a few hours afterward, but we have successfully scaled one of the two main systems responsible for the slowdown. Our readings show socket latency well below the 24hr average at the time of writing.

The second system will be migrated shortly and will mitigate this problem going forward. We are still experiencing slowdowns on the engine layer that will result in the dreaded “Overload” messages for many users despite the above scaling. We are very aware of the issue and have a team dedicated to solving this problem as quickly as possible. The solution in progress involves rearchitecting certain systems integral to BitMEX operation, so extensive planning and testing is in progress. We will update you once this work is complete.

In other news, a number of major updates to the frontend have hit, including a new popout chat box. Some users may have stuck caches on the chart due to an upgrade. If you are seeing this, please full-screen the chart, then close the fullscreen window. If that doesn’t work, please clear your browser cache.

Bitcoin Cash Sale Summary
2017-12-30 10:32:13

BitMEX completed the sale of all Bitcoin Cash (BCH) held on behalf of our users. Bitcoin Cash sale details:

  • The amount of Bitcoin Cash a user is entitled to is determined by their margin balance at 1 August 2017 13:17 UTC, a few seconds after block 478,588.
  • Bitcoin Cash to Bitcoin (XBT) ratio is 1 BCH to 0.1707 XBT.
  • Users’ BitMEX Bitcoin wallets will be credited with the amount of Bitcoin they are entitled to.

Note: A number of users received an email with an incorrect value in the subject line. The body of the email contains the correct credit. You can verify your credit at https://www.bitmex.com/app/wallet, where this transaction will be listed as a Transfer.

The Insurance Fund was credited with 120.5321631 XBT due to its holdings of Bitcoin Cash.

XTZZ17 Settlement Details
2017-12-28 05:31:02

Tezzies currently are not tradable on Bittrex, Kraken, or Poloniex. Therefore, as specified by the Tezos Series Guide, the BitMEX Tezos/Bitcoin 29 December 2017 futures contract, XTZZ17, will settle at the ICO price of 0.0002 XBT.

BitMEX Product List Update
2017-12-13 08:53:47

Quarterly Bitcoin / USD Futures Contracts

The following quarterly contracts will be listed on or before 15 December 2017 12:00 UTC:

  • BitMEX Bitcoin / USD 30 March 2018 futures contract, XBTH18

We will add the BitMEX Bitcoin / USD 29 June 2018 futures contract, XBTM18, in the near future.

Quarterly Bitcoin / JPY Futures Contracts

No new Bitcoin / JPY quarterly contract will be listed after the BitMEX Bitcoin / JPY 29 December 2017 futures contract, XBJZ17, expires. We will add a Bitcoin / JPY perpetual swap in the near future.

Quarterly Altcoin Futures Contracts

The following quarterly contracts will be listed on or before 15 December 2017 12:00 UTC:

  • BitMEX Ether / Bitcoin 30 March 2018 futures contract, ETHH18
  • BitMEX Dash / Bitcoin 30 March 2018 futures contract, DASHH18
  • BitMEX Litecoin / Bitcoin 30 March 2018 futures contract, LTCH18
  • BitMEX Monero / Bitcoin 30 March 2018 futures contract, XMRH18
  • BitMEX Ripple / Bitcoin 30 March 2018 futures contract, XRPH18
  • BitMEX Zcash / Bitcoin 30 March 2018 futures contract, ZECH18

Please note the fee structure for all altcoin futures contracts will change to maker / taker, -0.05% / +0.25%.

Order Placement Limits
2017-12-9 14:22:44

Starting December 11th, 2017 at 12:00 UTC, the following limits will be applied:

(1) Maximum 200 open orders per contract per account;
(2) Maximum 10 stop orders per contract per account;
(3) Maximum 10 contingent orders per contract per account.

When placing a new order that causes these caps to be exceeded, it will be rejected with the message “Too many [open|stop|contingent] orders”.

These caps are designed to improve the overall trading experience on BitMEX and will be reviewed and updated periodically.