Trading fees

Trading fees vary by rail. This page collects every fee type and applicable rate.

Find it at: this is a reference page. Per-order fee previews appear inside the Trade Modal on the Preview step.

warning

Fee schedule is being finalized. Confirm with the product team before relying on specific rates — values below describe the fee structure, but exact numbers may change before launch.

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1. Fees by rail

Each trade rail has its own fee model and counterparty. There is no unified "Alphio fee" applied on top — fees come from the broker, the DEX, or the prediction market the order routes to.

Rail	Fee components	Who charges	Settlement currency
Stock Trading	Broker commission + any SnapTrade-routed fees	Your connected broker	USD (or broker-native currency for HK)
Hyperliquid Perpetuals	Taker fee + maker fee + funding rate + on-chain gas	Hyperliquid DEX (+ network)	USDC
Prediction Markets	Polymarket CLOB fees + USDC bridge gas	Polymarket (+ network)	USDC

Custom Credits purchases (used inside Alphio for AI features, not for trading) are a separate path covered in section 5.

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2. Stock Trading fees

Stock orders execute at your connected broker. Alphio does not add a commission on top — what you pay is what the broker charges, plus any SnapTrade-side routing fee.

• Per-share commission — some brokers charge a small fee per share routed.
• Per-trade commission — other brokers (especially zero-commission US brokers) charge nothing per share but may charge for special order types or markets.
• Regulatory fees — small SEC / TAF / exchange fees pass through unchanged.
• HK trading fees — HK orders may carry exchange levy, stamp duty, and HKD FX spread on top of the broker's commission.

warning

Exact per-share and per-trade rates depend entirely on your broker's published schedule. Refer to your broker's pricing page for authoritative numbers. Alphio surfaces the broker's preview value during the Check step of the Trade Modal.

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3. Hyperliquid Perp fees

Hyperliquid perp orders carry four kinds of fees:

• Taker fee — paid by the side that crosses the spread (market-takers).
• Maker fee — paid (or rebated, depending on tier) by the side that posts liquidity (limit orders that rest on the book).
• Funding rate — periodic payment exchanged between longs and shorts, set by Hyperliquid based on perp vs. index price drift. Funding can be positive or negative; it accrues against open positions.
• Withdrawal gas — on-chain gas paid when you move USDC off Hyperliquid back to your wallet. Deposits into Hyperliquid follow the standard bridge gas cost.

Rates follow Hyperliquid's published fee schedule and tier system. See the Hyperliquid Perpetuals deep-dive for the rail's full mechanics.

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4. Polymarket fees

Prediction orders settle through Polymarket's central limit order book (CLOB). Three fee components apply:

• CLOB taker / maker fees — Polymarket charges fees on filled orders per its published schedule. Maker rebates may apply on resting orders.
• USDC bridge gas — bridging USDC to / from Polymarket incurs network gas on the relevant chains. Alphio's USDC bridge surfaces the estimated gas before you confirm a bridge.
• No Alphio markup — Alphio does not add a fee on top of Polymarket execution.

See Prediction Markets for the full execution path, including how the USDC bridge composes with the order.

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5. Custom Credits purchase fees

Custom Credits (à la carte Credits top-ups, outside the subscription cycle) are paid for through a payment service provider (PSP) — currently Stripe. PSP processing fees apply on every charge.

• Stripe fees — standard card / wallet processing fees per Stripe's published rates for your region.
• No FX margin from Alphio — currency conversion (if any) follows Stripe's published FX handling.

warning

Whether Stripe's PSP fees are absorbed by Alphio or passed through to the buyer is being finalized as part of the Custom Credits pricing rollout. Confirm with the product team before publishing exact net amounts.

See the Credits documentation for the underlying Credits model.