Use a limit order when your code needs to specify a price and can tolerate waiting for a match. Choose a market-style order when it should try to trade immediately: FOK requires a complete immediate fill or cancellation, while FAK accepts an immediate partial fill and cancels the remainder. Neither immediate-execution choice guarantees a particular price.
What’s the difference between a limit order and a market order?
The key difference is the order’s priority. A limit order sets a price; if it cannot match the available opposing orders at that price, it may rest on the book. A market-style order instead prioritizes immediate execution, with the actual fill determined by the opposing liquidity available when it reaches the book.
As an Amazon Associate I earn from qualifying purchases.
“Limit” does not necessarily mean passive: a limit price that crosses available orders can match immediately. Likewise, a market-style instruction is an attempt to execute now, not a promise that the order will fill or execute at a particular price. Polymarket describes outcome-share prices as reflecting what participants are willing to buy and sell. Its FAQ gives a product price range of 0.00 to 1.00 USDC; that range is context, not a guarantee about any order’s execution price. Polymarket’s FAQ
Which order behavior should your code use?
| Decision | Limit order | Market-style order |
|---|---|---|
| Price intent | You specify the order price. | You prioritize immediate execution; the realized price depends on available opposing orders. |
| Timing | May match immediately if marketable or rest on the book if it does not match. | Attempts to execute immediately. |
| Partial fills | May match immediately or fill over time while resting; the result depends on order instructions and book state. | FOK cancels unless fully filled immediately. FAK executes what is immediately available and cancels the remainder. |
| Main implementation concern | Check price precision, tick size, expiration, and whether the price is intended to rest or cross. | Choose whether partial immediate execution is acceptable, and communicate price uncertainty. |
The @polymarket/clob-client-v2 package documentation illustrates a limit order posted with GTC and market-style orders using FOK or FAK. Treat those examples as package examples, not as a guarantee that methods, defaults, or API behavior are unchanged.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
How FOK and FAK change the result
FOK: all now or cancel
Fill-or-kill (FOK) instructs the system to fill the order in full immediately or cancel it. Use this behavior when a partial position would be unacceptable. If the available opposing liquidity cannot satisfy the full order, the order does not leave a partially filled remainder.
FAK: fill what is available now
Fill-and-kill (FAK) executes the immediately available amount and cancels any unfilled remainder. Use it when some immediate execution is useful but leaving the balance resting is not desired. Your application should report the amount actually filled rather than implying the requested amount traded.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
These are execution conditions, not price controls. An immediate attempt can encounter different opposing prices as it consumes available liquidity, so show users that the realized price can differ from an indicative or displayed price.
Free tools Windows power users keep installed
One-click scans. No signup required.
What GTC means for a resting limit order
In the client package example, a limit order is created with a token ID, price, side, and size, then posted using GTC. GTC means good ’til cancelled in that example: the order is intended to remain available rather than canceling immediately when it cannot match. Whether and how long a specific order remains active depends on the venue’s rules and the order’s instructions.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Polymarket US’s rulebook describes standing limit orders and says GTC remains in force until execution, cancellation, or contract expiration. This is a US-venue rulebook; do not assume it establishes the rules for every Polymarket interface. Polymarket US Rulebook (2026.05.19)
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Checks to make before implementing either order
- Confirm the venue. Identify whether your integration targets Polymarket US or another interface. Venue-specific rules should not be generalized without confirmation.
- Confirm the current API and SDK. Check the official developer documentation and the exact client version you will use for endpoint schema, authentication, method names, and defaults. Package examples can change.
- Validate price and market constraints. Confirm the relevant market’s tick size and accepted price precision before submitting a limit order.
- Make the execution intent explicit. Decide whether an order should rest, cross available prices, require a full immediate fill (FOK), or accept a partial immediate fill (FAK).
- Handle the actual outcome. Distinguish a resting order, a complete fill, a partial fill, and a cancellation in your application. Do not present an attempted immediate order as a completed trade.
- Explain price uncertainty. For market-style execution, avoid promising a fixed fill price; available opposing liquidity determines what can trade.
The available client-package examples are useful for understanding the distinction, but they do not establish the current raw endpoint path, payload schema, authentication headers, SDK migration requirements, market-specific tick sizes, defaults, or access restrictions. Verify those details in the current official documentation for your target venue and SDK before shipping runnable requests.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
