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The 390 Professional Orders Rule is a regulatory guideline established by the Chicago Board Options Exchange (CBOE) to classify high-frequency options traders as professional Trader.
Customers are classified as professional Traders if they place an average of 390 option orders per trading day in a calendar month.
Every submitted options order—whether filled, rejected, or canceled—counts toward the 390-order threshold, including:
Each individual buy or sell order is counted separately.
8 legs or fewer → Counts as 1 order
9 legs or more → Each leg counts as a separate order
Each modification counts as a new order
Exceptions apply when replacing "child" orders within a parent-child structure
Orders that adjust based on Best Bid Offer (BBO) or National Best Bid and Offer (NBBO) count as a new order each time they update.
The above content is only a summary of the 390 Professional Orders Rule. For more detailed information, refer to the CBOE Regulatory Notice
EleBank Causeway Bay Physical Store
Address: Shop S & X, Hong Kong Mansion, 1A-1L Yee Wo Street, Causeway Bay (Exit E of Causeway Bay Station)
Opening hours: Monday to Sunday - 10am to 9pm (The Physical Store's opening hours may be adjusted on certain public holidays. Please refer to the Bank's announcements.)
