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RockFlow Transaction Fees

RockFlow believes that providing best execution prices is in the best interests of users. We committed to let our users get the best available prices for stocks and ETFs across exchanges.

1. Commission Fee

1.1 U.S. Stocks

TypeCharged ByFeePricing
CommissionRockFlowFractional Share Commission (Number of shares in a single transaction < 1 share)$0.0035/share × number of shares
Min. Charge/Order:$0.2
Max. Charge/Order: Trade Value × 1%
Whole Share Commission (Number of shares in a single transaction >= 1 share)$0.0035share × number of shares
Min. Charge/Order: $0.5
Platform FeeRockFlowFractional Share Platform Fee (Number of shares in a single transaction < 1 share)$0.0038/share × number of shares
Min. Charge/Order:Max( $0.2, Trade Value *0.03%)
Max. Charge/Order: Trade Value × 1%
Whole Share Platform Fee (Number of shares in a single transaction >= 1 share)$0.0038share × number of shares
Min. Charge/Order: max($0.88, Trade Value×0.03%)
Third Party Fee¹The U.S. clearing houses,etcSettlement Fee$0.003/share*number of shares
Min. Charge/Order: $0.01
SEC (U.S. Securities and Exchange Commission)SEC Membership Fee (Charged for sell orders only)0.0008% × Trade Value
Min. Charge/Order: $0.01
FINRA(U.S. Financial Industry Regulatory Authority )Trading Activity Fee (Charged for sell orders only)$0.000166 / Share × number of shares
Min. Charge/Order: $0.01
Max. Charge/Order: $7.27
ExchangesExchange FeeDifferent exchanges and transaction types have different fees

¹If there is any change in the fees charged by third parties such as exchanges and regulators, RockFlow will adjust the fees it charges on their behalf accordingly.

²To protect clients' interests, If the calculated maximum commission per order is lower than the minimum commission per order, RockFlow would charge the lowest one:

(3)In order to provide the optimal execution price, RockFlow will transmit the order to the optimal exchange for execution, so the fee will fluctuate.

1.2 Hong Kong Stocks

TypeCharged ByFeePricing
Trading FeeRockFlowCommission0.03% × Trade Value + HKD 10
Platform Fee0.02% × Trade Value
Min. Charge/Order: HK$5
Third Party Fee¹HKEXTrading Fee0.005% × Trade Value
HKSCCSettlement Fee0.002% × Trade Value
Min. HKD 2 and Max. HKD 100 / Order
SFCTransaction Levy0.0027% × Trade Value
Government of Hong KongStamp Duty0.1% × Trade Value
(Rounding up to the nearest integer)
Financial Reporting CouncilFRC Transaction Levy0.00015% × Trade Value

¹If there is any change in the fees charged by third parties such as exchanges and regulators, RockFlow will adjust the fees it charges on their behalf accordingly.

1.3 U.S. Stocks Options

TypeCharged ByFeePricing
Trading FeeRockFlowCommission$0.6/contract Min. $1/Order
Platform Fee$0.3/contract Min. $0.9/Order
Third Party Fee¹SEC (U.S. Securities and Exchange Commission)SEC Membership Fee (Charged for sell orders only)0.00229% × Trade Value Min. $0.01/Order
FINRA(U.S. Financial Industry Regulatory Authority)Trading Activity Fee (Charged for sell orders only)$0.00279 × Quantity Sold Min. $0.01/Order
Exchanges²Option Regulatory Fee$0.02685/contract
OCC (Options Clearing Corporation)OCC Clearing FeeTrades of 1-2750 contracts: $0.02/contract Trades > 2750 contracts: $55/trade
ExchangesExchange FeeVaries by Exchanges and transaction Type

¹If there is any change in the fees charged by third parties such as exchanges and regulators, RockFlow will adjust the fees it charges on their behalf accordingly.

²The OPtions Regulatory Fee is charged by the following exchanges: AMEX, BATS, BOX, CBOE, CBOE2, EDGX, EMERALD, ISE, GEMINI, MERCURY, MIAX, NOM, NASDAQBX, PSE, PHLX.

  • When options contracts expire in-the-money, there may be exercise and stock settlement fees incurred.

2. Margin Fee and Securities Financing Fee

2.1 Margin Fee

CurrencyLong Margin Rate
USD7.375%
HKD7.375%
  • To adapt to changes in currency exchange rates, Long Margin Rate may be adjusted periodically.
  • The number of financing days is calculated based on 365 natural days, and interest is calculated on a calendar day(If you return the money within the day you borrow, the interest would be free. Otherwise, interest would be charged). Long Margin Interest formula: financing amount × long margin rate × actual financing days/365.
  • Long Margin Interest formula: financing amount × long margin rate × actual financing days/365.

2.2 US Securities Financing Fee

Charged ByTypeFee
RockFlowApplication Fee
(Refund if application failed)
$0.003/Share
Min. $1/Order
Data ProviderInterest RateDifferent stocks have different interest rates, please refer to the system calculation when you actually place the order.
  • Securities financing fee depends on the stocks. Please refer to the daily statement when the actual order is placed.
  • Securities Financing Interest formula: Market value of securities lending × interest rate of short selling × actual securities lending days/365.
  • If the account is in arrears after deducting interest in the current month, the amount of the arrears will be included in the amount of this month's financing.

ATN: The current commission rates have included benefits for the promotion period. RockFlow reserves the right to adjust the commission rate at any time according to new promotion plans and market changes. Relevant adjustments will be notified in a timely manner through the official website, customer service, text messages, emails and other channels. Please pay attention to commission changes.

3. Other Service Fees

TypeCharged ByFeePricing
Fee charged on behalf of the third partiesDepository trust company (DTCC)ADR (American depositary receipt) fee$0.01-0.05/ share in general
Internal Revenue Service (IRS)Collection of dividend taxThe tax rate varies according to the regulations of different regions (automatically withheld at the time of distribution)
Handling FeeRockFlowCorpAction Dividend Collection Fee0.2% × Dividend Min. $0.01
Corp Action Handling Fee$3
Scrip FeeHK$1.5/ lot
Min. HK$31.9
Dividend Collection Handling Fee(HK)0.2% × Dividend
Min. HK$30
Commission after exercisedConsistent with the current U.S. stock trading fee standards
  • ADR fee introduction

1. What are ADR (American Depositary Receipts) and ADR fees?

ADR (American Depository Receipts) refers to a negotiable certificate issued by a United States depositary bank to assist foreign securities to be traded in the United States. Usually represents publicly tradable shares of non-U.S. companies. According to the SEC, most enterprises registered in non-U.S. regions can only be listed in the United States by ADRs.

According to the SEC, an ADR depository bank may be authorized under the deposit agreement relating to the ADRs to charge a fee, called a custody fee or depository service fee, for the work it performs on the ADR. In 2008, the SEC approved the DTC (Depository Trust Company) to collect ADR fees from ADR holders non-periodically on behalf of the ADR depository banks.

2. How much are the ADR fees and how are they charged?

ADR fees usually range from 1 to 5 cents per share. The amount of fees and dates charged by each ADR will be different. For more details, please refer to each ADR prospectus.

Typically, ADR fees will be deducted from the gross dividend of ADR issues. However, if a number of ADRs do not pay periodic dividends, ADR fees will be collected from investors through their broker agents on a specific recording date. For ADR fees deducted with dividend distribution, the fees may be collected from investors' security accounts after the gross dividends are paid. Otherwise, the fees may be deducted directly from the gross dividends, and the investors receive the net dividend. For ADR fees not deducted with dividend distribution , the ADR custodian banks will update the notice, registration and collection dates of ADR fees before the deductions. Investors who hold ADR issues on the registration date will be deducted ADR fees on the collection date. Transactions after the registration date will not affect the current ADR fee collection.

Brokers usually will collect due ADR fees on behalf of clients and send them a fee notice; the fees will be deducted on the actual collection day. Due to reasons such as fund settlement, the broker's deduction date may differ from the bank's collection date. Kind reminder: RockFlow will generally notify customers of the deduction matters on the actual deduction day through an APP push. If the customer's available cash within the day falls below zero after the deduction, the customers should promptly transfer funds or manually liquidated securities to avoid triggering risk control alarms.

3. How to check my ADR fees?

ADR fees are disclosed on the website of each ADR's custodian banks or the official website of the SEC.

Most ADRs in the market are managed by four custodian banks, namely Deutsche Bank , JPMorgan Chase Bank , Citibank and Bank of New York Mellon . Investors can log on to the websites of the above four banks and enter the stock code for ADR fees' inquires. Investors can also visit the EDGAR company search tool to view the specific ADR fees' descriptions. Please note that some ADRs have only one custodian bank. If relevant information is not found on the website of one bank, please try to log on to the other three banks or log on to EDGAR for inquiries.

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