Cboe Swaps Flat API Fees for Usage Tiers
Published Date: 3/11/2026
Notice
Summary
Starting March 2, 2026, Cboe Exchange is switching from a flat monthly fee to a usage-based tiered pricing for its Silexx API. This means traders and firms using the API will pay based on how much they use it, not a fixed price every month. The change aims to make fees fairer and more flexible for everyone involved.
Analyzed Economic Effects
4 provisions identified: 0 benefits, 4 costs, 0 mixed.
Flat $200 Monthly Fee Replaced
If you use the Silexx API, the flat $200 monthly fee per login ID (in place since 2017) is replaced effective March 2, 2026 by a tiered monthly fee of $299, $699, or $999 per login ID depending on the tier you choose.
Overage Fee of $0.01 Per Excess Call
For firms on Tier 1 or Tier 2, any API calls above the applicable daily firm-level cap (20,000 for Tier 1; 200,000 for Tier 2) are charged an overage fee of $0.01 per call; Tier 3 has no overage fee.
Usage Tiers and Specific Rate Limits
The new pricing has three tiers with technical limits: Tier 1 ($299/month) has a 200 calls-per-minute limit and a 20,000 daily firm-level cap; Tier 2 ($699/month) has a 2,000 calls-per-minute limit and a 200,000 daily firm-level cap; Tier 3 ($999/month) has no per-minute or daily cap.
Default Tier and Mid-Month Billing Rule
All login IDs default to Tier 1 ($299/month) unless a user elects a higher tier; if you switch to a higher tier mid-month, the higher-tier monthly fee applies for the entire billing month.
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-12163 — The Trade-Through Rule and Locked and Crossed Markets Provisions of Regulation NMS
The SEC wants to scrap some old rules that stop stocks from being traded at worse prices and prevent confusing market quotes. This change affects stock traders and exchanges, aiming to simplify trading and possibly speed things up. If you want to share your thoughts, you’ve got until August 17, 2026, so don’t miss out!
2026-10373 — Registered Offering Reform
The SEC wants to make it easier and cheaper for more companies to sell their stocks and bonds to the public. They’re opening up special forms and benefits to more businesses, updating rules to be more modern, and cutting red tape by overriding some state rules. If you’re a company planning to raise money, these changes could speed things up and save you money, with feedback due by July 27, 2026.
2026-10222 — Enhancement of Emerging Growth Company Accommodations and Simplification of Filer Status for Reporting Companies
The SEC is making it easier for companies that report their finances by simplifying their categories into just two groups: big and small filers. Smaller companies, including emerging growth ones, will get more time to file reports and enjoy simpler rules, while big companies keep stricter standards. These changes aim to save time and money, with feedback open until July 20, 2026.
2026-07651 — Concept Release on Consolidated Audit Trail and Other Audit Trails and Data Sources
The SEC wants your thoughts on how it tracks stock market trades using the Consolidated Audit Trail and other data tools. They’re thinking about updating rules to keep up with new tech, privacy, and security needs, and to make sure the system is fair and cost-effective. If you’re involved in the stock market or data tracking, speak up by June 22, 2026!
2026-13638 — Goehring & Rozencwajg Investment Funds and Goehring & Rozencwajg Associates, LLC
Goehring & Rozencwajg want to offer a new kind of investment fund that mixes exchange-traded shares (like ETFs) with regular mutual fund shares all in one fund. This change could make investing more flexible and easier for their customers. If no one asks for a hearing by July 27, 2026, the SEC will likely approve this new setup soon.
2026-13648 — Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change to Except Accounts Pursuant to Section 530A of the Internal Revenue Code From the Requirements of FINRA Rule 3210 (Accounts At Other Broker-Dealers and Financial Institutions)
FINRA is updating its rules to exclude certain accounts protected under a new tax law (Section 530A) from extra paperwork and approval steps. This change helps financial pros handle these special accounts more easily, starting right away with no extra costs. If you work with broker-dealers or financial institutions, this means smoother account management from now on!
Previous / Next Documents
Previous: 2026-04708 — Self-Regulatory Organizations: Notice of Filing of a Proposed Rule Change by MIAX Emerald, LLC To Amend the By-Laws To Establish the Role of Observers
MIAX Emerald is updating its rules to create a new role called Observers on its Board. These Observers will have specific rights and a clear nomination process, while old rules about temporary directors are being removed. This change affects the company’s leadership and is set to take effect soon, with no direct cost impact announced.
Next: 2026-04710 — Self-Regulatory Organizations; Investors Exchange LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Modify IEX Rule 11.190(b)(7)
IEX is giving traders a cool new way to handle Discretionary Limit orders, making trading smoother and more flexible. This change affects anyone using IEX’s platform and kicks in right away, with no extra fees involved. It’s all about making smart order choices easier and faster for investors.