📣 Update to UTA Borrowing collateral value ratio rules – 3rd batch implementation

Effective Time: Find more details in the announcement center post below

To better measure market risks and enhance your trading experience, we're updating the 3rd batch of collateral value ratio rules for Unified Trading Account (UTA) Borrowing. Effective Jul 11, 2025, 6AM UTC, we'll shift from a single to a tiered collateral value ratio, affecting the Maintenance Margin Rate (MMR) in your UTA account. Stay informed and monitor your positions to manage potential risks.

Learn More!

The time point in the previous announcement (https://t.me/Bybit_API_Announcements/334) has changed, please refer to the new announcement

📢 Institutional Notice: Major Updates to Margin Calculation (Perps & Futures)

Bybit is updating the margin algorithm for Perpetual & Futures Contracts. Key changes include:
1. Cross Margin
• Position Initial Margin & Maintenance Margin will now use Mark Price instead of Entry Price

2. Isolated Margin
• Maintenance Margin & Liquidation Price is now based on the Mark Price instead of the Entry Price
• Initial Margin remains unchanged
• Algorithm for position liquidation price will be updated but remain at a fixed value. This is consistent with the current experience

3. Portfolio Margin
• No changes

Do note that Risk Limits will dynamically adjust based on real-time Mark Price – clients are encouraged to review exposure accordingly.

Dual Calculation Display
Compare old & new calculations side-by-side before switchover:
• Web rollout: July 15, 2025
• Mobile app submission: July 16, 2025

API endpoints available:
• /v5/position/list, /v5/account/wallet-balance, and push topics (position, wallet) — live from July 15

New Algorithm Rollout Starts: September 02, 2025
• Complete migration in 2 weeks
• Liquidation may trigger immediately under new logic — clients should prepare & reallocate as needed.
• When the new algorithm takes effect, the risk limit tier may be adjusted immediately based on the real-time mark price, and the margin requirements may be increased accordingly.

More details to come on 15th July.

Dear Traders,

Please note the following important updates:

🔹 Simon’s Cat (CATBNB) Ticker Renamed to CAT
https://announcements.bybit.com/en/article/-important-notice-simon-s-cat-catbnb-ticker-to-be-renamed-as-cat-blt87b6a0128bf499cc/

🔹 Bybit Perpetual & Futures Contracts: Major Update to Position Margin Calculation
https://announcements.bybit.com/en/article/bybit-perpetual-futures-contracts-position-margin-calculation-major-updates-bltb38c86a5f8ccc304/

Please review the changes carefully to understand their impact on your trading activities.

Best regards,
Bybit Team

Update to our UTA Borrowing collateral value ratio

To better measure market risks and enhance your trading experience, we'll update the collateral value ratios for 35 assets under Unified Trading Account (UTA) Borrowing, effective Jul 25, 2025, 6AM UTC. Please stay informed and monitor your positions accordingly to manage any potential risks.

Announcement link: https://announcements.bybit.com/article/update-to-our-uta-borrowing-collateral-value-ratio--bltf85ebbbefb476d13/

Update to our UTA Borrowing collateral value ratio

To better measure market risks and enhance your trading experience, we'll update the collateral value ratios for 39 assets under Unified Trading Account (UTA) Borrowing, effective Aug 1, 2025, 6AM UTC. Please stay informed and monitor your positions accordingly to manage any potential risks.

Announcement link: https://announcements.bybit.com/en/article/update-to-our-uta-borrowing-collateral-value-ratio-blt7df363eedbb22ac9/

Dear Traders,

We are pleased to announce the addition of a new field — seq — to our public trade data, aimed at enhancing transparency and traceability.

🆕 What’s New?
The "seq" field indicates the matching sequence number for each trade.

Each data response can contain up to 1,024 items.

📅 Mainnet Rollout Schedule (Grayscale Deployment)
August 5, 2025: WebSocket – publicTrades topic

August 7, 2025: HTTP API – GET /v5/market/recent-trade

🧪 Available on Testnet Now
This feature is already live on testnet, and you may start testing it immediately.

If you have any questions or need further assistance, feel free to contact us.

Thank you for trading with Bybit.

Upcoming Change – Mandatory accountType Parameter for Withdrawals

To enhance withdrawal functionality, Bybit will soon support withdrawals from Spot, Unified Trading Account (UTA), and Funding wallets.

Please note that due to compatibility changes, the request parameter accountType will become mandatory. Kindly ensure your systems are updated accordingly to avoid integration issues.

Affected Endpoints:
• POST /v5/asset/withdraw/create
• POST /asset/v3/private/withdraw/create

Valid values for accountType:
• FUND (Funding Wallet)
• UTA (Unified Trading Account)
• SPOT (Spot Wallet) - classic account only

Deployment Schedule: August 5th, 7:00 AM UTC

We appreciate your prompt attention to this update.

📣Invitation: Join Bybit Institutional RFQ Platform as a Market Maker or Taker

Bybit RFQ is an off-order-book negotiation venue for high-volume, low-latency trading in perpetuals, spot, and structured products. With guaranteed response times, custom trade sizes, and full API integration, it’s ideal for institutional execution.

Key benefit for Maker
▪️Zero Market Impact – quotes stay off-book and anonymous
▪️Quote on Your Terms – full control over size, price, and timing
▪️Exposure Control – advanced risk throttles and quote filters

Key Benefit for Taker
▪️Multiple Quotes per RFQ – sharp pricing from top-tier makers
▪️Large-Block Execution – trade sizes well above public-book depth
▪️Better Price Discovery – minimise slippage on sizeable orders
▪️Low Fee Structure – preferential rates once volume thresholds are met

For interested clients, please complete this FORM to be the first batch of institutional clients to participate in our exclusive RFQ launch! Our team will reach out to you once applied.

We are keen to have you onboard as a Day One partner and look forward to discussing this opportunity in more detail.

Dear Traders,

To enhance the efficiency of our trading platform, Bybit will introduce minimum notional value requirements for orders placed on inverse contracts, effective Aug 19, 2025.

The minimum notional value will be 5 USD for all inverse contracts.

You can check the value in the minNotionalValue field from:
/v5/market/instruments-info?category=inverse

If your order does not meet this requirement, you will receive the following error:
110094 – Order does not meet minimum order value

Thank you for your understanding and continued support.

📢 Upcoming Enhancements to OrderBook Data Services
Dear Traders,

We are pleased to announce a series of upcoming enhancements and adjustments to our OrderBook data services:

August 14, 2025 — The WebSocket OrderBook will support 1,000 depth levels, with a push frequency of 300 ms.
[Documentation: WebSocket OrderBook]

August 21, 2025 — OrderBook REST API will be upgraded to provide data from 1,000 depth levels (previously 500 for futures, 200 for spot). The seq and u fields will correspond to the values pushed by the 1,000-level WebSocket OrderBook.
[Documentation: OrderBook REST API]

August 21, 2025 02:30 UTC — The historical futures OrderBook download data will be adjusted from level 500 @ 100 ms to level 200 @ 100 ms. Spot OrderBook download data remains unchanged.
[Historical Data]

September 11, 2025 — The WebSocket Futures OrderBook (500 depth levels) will be offline.
[Documentation: WebSocket OrderBook]

September 11, 2025 — The old liquidation WebSocket topic will be offline. Please subscribe to allLiquidation topics instead.
[Documentation: Liquidation WebSocket]

Please review the documentation and make the necessary adjustments to ensure a smooth transition.
We welcome your feedback or questions at any time.

Update to our UTA Borrowing collateral value ratio

To help you better manage market risks and optimize your trading experience, we’ll update the collateral value ratios for 64 assets under Unified Trading Account (UTA) Borrowing.


Effective date: Aug 22, 2025, 6AM UTC

https://announcements.bybit.com/en/article/update-to-our-uta-borrowing-collateral-value-ratio1111-blt5c3a5f88b5b9a4e4/

📢 OrderBook Data Service Updates

Dear Traders,

We would like to remind you of the following upcoming changes to our OrderBook data services:

August 21, 2025 — The OrderBook REST API will be upgraded to provide data from 1,000 depth levels (previously 500 for futures and 200 for spot). The "seq" and "u" fields will align with the values pushed by the 1,000-level WebSocket OrderBook.
🔗 Documentation: OrderBook REST API

September 11, 2025 — The WebSocket Futures OrderBook (500 depth levels) will be offline.
🔗 Documentation: WebSocket OrderBook

We recommend all users update their systems accordingly to ensure uninterrupted access to OrderBook data.

🔗 Original Announcement: https://t.me/Bybit_API_Announcements/344

📢 UTA Borrowing Collateral Value Ratio Update

To better reflect market risks and enhance your trading experience, Bybit will update the Collateral Value Ratio Rules for Unified Trading Account (UTA) Borrowing.

Effective: 5 Sept 2025, 6AM UTC

Please note that this will affect the Maintenance Margin Rate (MMR) in your UTA.

Assets impacted include ETH, METH, CMETH, STETH, SOL, BBSOL, among others.

Please refer to the full announcement and implementation schedule here

📣 Institutional Notice: Major Updates to Margin Calculation (Perps & Futures)

Bybit is updating the margin algorithm for Perpetual & Futures Contracts.

Already Live (since July 15, 2025):
Dual Calculation Display (new and existing algorithms side-by-side) on web & app

📅 New Algorithm Release:
2 Sept 2025 → Gradual rollout begins
9 Sept 2025 → Gradual rollout for Pro Clients

Full migration within 2 weeks

Key Changes:
1. Cross Margin: The new Initial Margin will be used as the cost to hold the position. Liquidation will be triggered based on the new Maintenance Margin Rate, calculated using the mark price
2. Isolated Margin: Liquidation will occur when the mark price hits the new liquidation price

Once new algorithms are live:
If your account's Maintenance Margin Rate has already reached 100% (for Cross Margin), or if the mark price hits the liquidation price (for Isolated Margin), your account or position will be liquidated immediately.

📌 Please review positions in advance.

Refer to annoucement for full details.

📢 Product Update – September 4, 2025

We’ve made some updates to our REST API:

[NEW] Get Limit Price Behaviour
A new endpoint is now available to retrieve configuration details on how the system handles limit order prices that exceed the highest bid or lowest ask.

[UPDATE] Move Positions
We've introduced a new category: inverse, which is now supported under UTA 2.0 only.

For more details, please refer to the API documentation.

https://bybit-exchange.github.io/docs/changelog/v5#2025-09-04

[UPDATE] Move Positions
📌 The release of the new inverse category has been postponed to September 8.

📣 Institutional Notice: Major Updates to Margin Calculation (Perps & Futures)

Bybit is updating the margin algorithm for Perpetual & Futures Contracts.

Already Live (since July 15, 2025):
Dual Calculation Display (new and existing algorithms side by side) on web & app

📅 New Algorithm Release:
2 Sept 2025 → Gradual rollout begins
9 Sept 2025 → Gradual rollout for Pro Clients

Full migration within 2 weeks

Key Changes:
1. Cross Margin: The new Initial Margin will be used as the cost to hold the position. Liquidation will be triggered based on the new Maintenance Margin Rate, calculated using the mark price
2. Isolated Margin: Liquidation will occur when the mark price hits the new liquidation price

Once new algorithms are live:
If your account's Maintenance Margin Rate has already reached 100% (for Cross Margin), or if the mark price hits the liquidation price (for Isolated Margin), your account or position will be liquidated immediately.

📌 Please review positions in advance.

Refer to annoucement for full details.

📣 MNT x Bybit Institutional: Unlock exclusive benefits

🔥MNT now unlocks exclusive benefits for Bybit institutional clients - from higher leverage to longer loan terms, this program gives institutions new ways to trade, borrow and hold MNT with greater efficiency.

Effective date: Sep 20, 2025

Benefit 1: Higher leverage
▪️Spot margin: up to 8x
▪️Perpetual pairs: up to 5x on USDT pairs
▪️Institutional loans: up to 10x on USDT and USDC

Benefit 2: Longer fixed interest rates
▪️Less than 500K MNT: 1 month (default)
▪️500K MNT: 2 months
▪️1M MNT: 3 months
▪️1.5M MNT and above: 4 months

How to unlock your benefits
1️⃣Acquire MNT
Deposit assets or buy MNT via Spot, Convert or OTC.

2️⃣Notify your RM
After acquiring MNT, notify your RM.

3️⃣Activate benefits
Your RM will submit the MNT application for you, and benefits will be activated the next business day.

Refer to the announcements and one-pager for full details

📢 Bybit Important Notice: Standard Accounts to be Phased Out

⚠️ Key Dates
26 Oct - Please upgrade to UTA before this date
27 Oct - For accounts not meeting upgrade requirements:
• Negative balance + open Derivatives → all positions liquidated, account upgraded
• Open Derivatives in both Cross & Isolated Margin → Isolated positions converted to Cross, account upgraded
31 Oct - All remaining Standard Accounts will be liquidated and upgraded to UTA

✅ Why UTA?
• Trade Spot, Perp, Futures & Options in one account
• Higher capital efficiency
• Stable performance even in volatile markets

Please upgrade early to avoid forced liquidation.
Upgrade Now

Full Details | Learn More About UTA

[Announcement] Upcoming Update: New cumFeeDetail Field & Execution Enhancements

Dear Users,

We will soon be updating the following order-related and execution-related endpoints:

REST API:
• GET /v5/order/realtime
• GET /v5/order/history
• GET /v5/execution/list
https://bybit-exchange.github.io/docs/v5/order/open-order
https://bybit-exchange.github.io/docs/v5/order/order-list
https://bybit-exchange.github.io/docs/v5/order/execution

WebSocket API:
• "order" topic
• "execution" topic
• "spread.order" topic
• "spread.execution" topic
https://bybit-exchange.github.io/docs/v5/websocket/private/order
https://bybit-exchange.github.io/docs/v5/websocket/private/execution
https://bybit-exchange.github.io/docs/v5/spread/websocket/private/order
https://bybit-exchange.github.io/docs/v5/spread/websocket/private/execution


What’s Changing:
• Orders (GET /v5/order/realtime, GET /v5/order/history): A new field "cumFeeDetail" (JSON format) will be introduced to record fees and their corresponding fee currency. This will replace the existing fields "cumExecFee"
• WebSocket ("order", "spread.order" topics): A new field "cumFeeDetail" will be added to indicate trading fee details. This will replace the existing fields "cumExecFee" and "feeCurrency". "feeCurrency" fields will be deleted.
• Executions (GET /v5/execution/list, WebSocket execution, spread.execution topics): A new field "feeCoin" will be added to indicate trading fee currency. "feeCurrency" and "execFeeV2" fields will be deleted.

Timeline
• Testnet: Already live
• Mainnet (Gray Release): September 18, 2025
• Mainnet (Full Release): September 23, 2025


Action Required
Please review this update and adjust your integrations accordingly. We encourage you to test the changes on testnet and share any feedback with us.

Thank you for your continued support.
The Bybit Team