2.1 Calculate the mark price of Futures and Perpetual Mark price = Index price + Basis of moving average Basis of moving average = Moving average of (Mid price of contract - Index price) = Moving average of [(Best ask of contract + Best bid of contract) / 2 - Index price] Note: USDT-margined, USDC-margined and crypto-margined contracts refer to the index price of base currency as their index price. E.g.

Prices of digital assets, including stablecoins, can and do fluctuate at any moment. Due to such price fluctuations, you may experience an increase or decrease in value of your assets at any given moment. Any and all applicable taxes and all fees and additional expenses, including connection, installation, and/or service costs, related to acceptance and use of the reward are the sole responsibility of the individual reward recipient.

To support the growth of the USD ecosystem and meet our users’ diverse trading needs, OKX is introducing the following USD trading pairs in our spot trading at 11:00 UTC on May 13, 2026: PROS/USD OKX team May 13, 2026

Perpetual futures trading PROS is the native token of Pharos, an inclusive financial Layer 1 designed to bring real-world assets onchain with accessible, compliant infrastructure Full Name: Pharos Ticker: PROS Official Website: https://www.pharos.xyz/ Twitter: https://x.com/pharos_network Features Details Underlying PROS/USDT index Settlement crypto USDT Face value 1 Price quotation 1 PROS value calculated in USDT equivalent Leverage 0.01-20x Funding rate clamp [Average premium index + clamp (Interest

spot, which only includes spot buy and sell Cost price = (Average cost price before last buy × Amount + Price of last buy × Amount) / Net buying amount PnL = (Last price – Cost price) × Net buying amount PnL Ratio = (Last price – Cost price) / Cost price

price-based limit price rules: Phase Highest price limit Lowest price limit First minute after listing Deal price of Call Auciton period * (1+H) No price limit 1 ~ N minutes after listing Close price of last minute * (1+H) No price limit After N minutes after listing No price limit No price limit Spot trading Buy orders: Orders placed above the highest price limit will trigger the price limit rules.

What is a spot index price? Spot Index price aims to measure the price of an underlying cryptocurrency. OKX’s USDT-margined contracts are denominated in USDT index price, USDC-margined contracts are denominated in USDC index price, while coin-margined contracts use the USD-equivalent spot index price of the underlying cryptocurrency.

Asset name: Pharos Ticker: PROS Token Network: Pharos Network Check PROS Price: https://www.okx.com/price/pharos-prosDeposit USDT Top up your balance to get ready for PROS/USDT spot trading: Risk warning: The foregoing overview and information, some of which may be provided by third parties and not OKX, are for informational purposes only.

Dear Valued Customers， OKX - The 1st ever exchange to list ProChain(PRO) - please stay tuned! please take note of the following go-live schedules: PRO deposit and spot trading - 11:00 Dec 9, 2017 (Beijing time) As the transaction of digital assets involve extensive risks, you are reminded to assess your risk tolerance before participating in these trades. As always, OKX will do all it takes to provide you with the best products and services. OKX December 8, 2017

Details as follows: 1.Glossary a.Forced-liquidation Price: When the market price reaches the forced-liquidation price and a user’s margin is lower than the required level, force-liquidation will be triggered. b.Bankruptcy Price: The price at which a user loses all margin c.Entrusted Price of Liquidated Position: The price at which a liquidated position is put into the market by our forced-liquidation engine after forced-liquidation d.Trading Price of Liquidated Position: The actual transaction price

Following a sharp rise in its price beginning in early November 2024, the token experienced an initial sudden and substantial price decline of more than 80% across the market at approximately 2:28:32am (UTC+8) on April 14, 2025 ("Market Event"). We observed that substantial trading volume spikes and price decline initially happened across various centralised exchanges outside of OKX, before spreading to the overall market.

Future changes to the cost price resulting from spot trading will also be based on the edited cost price. For example: If your trading account holds 1 BTC with a cost price of 60,000, and you transfer another 1 BTC from your funding account, your trading account will now hold a total of 2 BTC. If you then edit the cost price to 61,000, the cost price of the 2 BTC in your trading account will be updated to 61,000.

A price difference loss refers to a loss caused by the difference between the mark price at 9:07:26am UTC (48.36 USDT) and the resulting liquidation prices during the period. For example: If 10 OKB was liquidated at a liquidation price of 40.0 USDT, OKX will compensate difference of (48.36 - 40.0) * 10 = 83.6 USDT. Compensation will also include the associated liquidation penalty and trading fees (as determined by OKX), and exclude any bankruptcy losses already covered by the insurance fund.

The bot will place the order at the limit price if the order price is higher than the predefined limit price. If the order amount is more than the predefined average amount, the bot will place the order based on the average amount* random ratio (0.5~1). The order will be suspended when the last price (20,500 USDT) is higher than the limit price and resumed when the last price is below 10,500 USDT again. The bot will stop when the total filled amount equals the total order amount.

Short positions PnL: = Face value x |Size| x Multiplier x（1／Mark price - 1／Entry price） = 100 x 1000 x 1 x (1 / 80,000 - 1 / 100,000) = 0.25 BTC Floating PnL Ratio U-margined contracts: Suppose you have a long BTC-USDT expiry futures position, the current floating PnL of the position is 6000 USDT, and the current position's margin is 1600 USDT. Floating PnL Ratio: = (Floating PnL / Position's margin) x 100% = (6000 / 1600) x 100% = 375% This document is provided for informational purposes only.