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Friday, December 26, 2025

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Tool Comparison

CME FedWatch Tool vs MesoSim comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

CME FedWatch Tool adds Central Bank Watcher, Interest Rates, Data APIs, and Calendar coverage that MesoSim skips.

MesoSim includes Backtesting, Options & Derivatives, Paper Trading, AI, and AI Chat categories that CME FedWatch Tool omits.

In depth comparison

CME FedWatch Tool

cmegroup.com

Official CME probabilities for upcoming FOMC decisions, derived from 30‑Day Fed Funds (ZQ) futures. Web tool provides meeting‑by‑meeting probability matrices, comparisons over time, a historical download, and a Dot Plot view. A paid REST API is available for programmatic access. CME documents the probability‑tree methodology clearly; API snapshots update on business days at ~01:45 UTC. Media usage asks attribution to “CME FedWatch.”

Platforms

WebAPI

Pricing

FreeSubscription

Quick highlights

Meeting‑by‑meeting probabilities of FOMC target‑rate outcomes implied by Fed Funds futures.
Compare view (current vs 1‑day/1‑week/1‑month ago) and Historical panel.
Fed ‘Dot Plot’ chart plus table view.
One‑click PDF generation of the current page and Excel downloads for historical probabilities.
Transparent methodology: unconditional probabilities via a binary probability tree built from implied EFFR, assuming 25 bp step sizes.

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MesoSim

mesosim.io

Options strategy backtesting SaaS with low-code strategy definitions, observability (events log), risk graphs/Greeks, margin reporting, an options valuation model/solver, and an implied-volatility surface viewer. Plan gating: Free includes 25 runs; Standard ($1000/yr) unlocks unlimited SPX + BTCUSD/ETHUSD options backtests plus sharing/exports and 1 MesoLive paper-trading account; Advanced ($1250/yr) adds RUT/VIX/GLD, margin models, vol surface/HD risk graphs, and hourly risk traces (plus up to 2 paper accounts). Live trade execution is a paid MesoLive add-on; API access is FundPro-only.

Platforms

WebAPI

Pricing

FreeSubscription

Quick highlights

Advanced options strategy backtesting service built around a low-code workflow.
Strategy Definition schema supports multi-leg structures plus entry/exit/adjustments and simulator controls (fill model, commissions/slippage, margin, position monitoring).
TradFi instruments documented for simulation: SPX (data from 2010), RUT/VIX (data from 2012), and GLD (data from 2012), with index vs equity option modeling notes.
Published data availability + vendors and resolution (5-minute): SPX/RUT/VIX/GLD sourced from Cboe Global Markets; BTCUSD/ETHUSD (and historical SOLUSD) sourced from Deribit.
Position Monitor provides 2D/3D risk graphs, PnL, and Greeks, with trace collection intervals (Off/Daily/Hourly).

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Where they differ

CME FedWatch Tool

Distinct strengths include:

Central Bank Watcher Interest Rates Data APIs Calendar

Meeting‑by‑meeting probabilities of FOMC target‑rate outcomes implied by Fed Funds futures.
Compare view (current vs 1‑day/1‑week/1‑month ago) and Historical panel.
Fed ‘Dot Plot’ chart plus table view.
One‑click PDF generation of the current page and Excel downloads for historical probabilities.

MesoSim

Distinct strengths include:

Backtesting Options & Derivatives Paper Trading AI AI Chat

Advanced options strategy backtesting service built around a low-code workflow.
Strategy Definition schema supports multi-leg structures plus entry/exit/adjustments and simulator controls (fill model, commissions/slippage, margin, position monitoring).
TradFi instruments documented for simulation: SPX (data from 2010), RUT/VIX (data from 2012), and GLD (data from 2012), with index vs equity option modeling notes.
Published data availability + vendors and resolution (5-minute): SPX/RUT/VIX/GLD sourced from Cboe Global Markets; BTCUSD/ETHUSD (and historical SOLUSD) sourced from Deribit.

Feature-by-feature breakdown

Attribute	CME FedWatch Tool	MesoSim
Categories Which research workflows each platform targets	Shared: APIs & SDKs, Data Visualizations Unique: Central Bank Watcher, Interest Rates, Data APIs, Calendar	Shared: APIs & SDKs, Data Visualizations Unique: Backtesting, Options & Derivatives, Paper Trading, AI, AI Chat
Asset types Supported asset classes and universes	Futures	Options, Cryptos
Experience levels Who each product is built for	Beginner, Intermediate, Advanced	Intermediate, Advanced
Platforms Where you can access the product	Web, API	Web, API
Pricing High-level pricing models	Free, Subscription	Free, Subscription
Key features Core capabilities called out by each vendor	Unique Meeting‑by‑meeting probabilities of FOMC target‑rate outcomes implied by Fed Funds futures. Compare view (current vs 1‑day/1‑week/1‑month ago) and Historical panel. Fed ‘Dot Plot’ chart plus table view. One‑click PDF generation of the current page and Excel downloads for historical probabilities. Transparent methodology: unconditional probabilities via a binary probability tree built from implied EFFR, assuming 25 bp step sizes. FedWatch REST API (OAuth2) with endpoints for /forecasts and /meetings (future/history); extended history available.	Unique Advanced options strategy backtesting service built around a low-code workflow. Strategy Definition schema supports multi-leg structures plus entry/exit/adjustments and simulator controls (fill model, commissions/slippage, margin, position monitoring). TradFi instruments documented for simulation: SPX (data from 2010), RUT/VIX (data from 2012), and GLD (data from 2012), with index vs equity option modeling notes. Published data availability + vendors and resolution (5-minute): SPX/RUT/VIX/GLD sourced from Cboe Global Markets; BTCUSD/ETHUSD (and historical SOLUSD) sourced from Deribit. Position Monitor provides 2D/3D risk graphs, PnL, and Greeks, with trace collection intervals (Off/Daily/Hourly). Volatility Surface viewer to explore implied-vol surfaces with overlays (e.g., open interest, volume, bid-ask spread, Greeks) and playback at 5-minute resolution (non-crypto in current version).
Tested Verified by hands-on testing inside Find My Moat	Not yet	Not yet
Editor pick Featured inside curated shortlists	Standard listing	Standard listing

Frequently Asked Questions

Which workflows do CME FedWatch Tool and MesoSim both support?

Both platforms cover APIs & SDKs, and Data Visualizations workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do CME FedWatch Tool and MesoSim require subscriptions?

Both CME FedWatch Tool and MesoSim keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access CME FedWatch Tool and MesoSim?

Both CME FedWatch Tool and MesoSim prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

CME FedWatch Tool differentiates itself with Meeting‑by‑meeting probabilities of FOMC target‑rate outcomes implied by Fed Funds futures., Compare view (current vs 1‑day/1‑week/1‑month ago) and Historical panel., and Fed ‘Dot Plot’ chart plus table view., whereas MesoSim stands out for Advanced options strategy backtesting service built around a low-code workflow., Strategy Definition schema supports multi-leg structures plus entry/exit/adjustments and simulator controls (fill model, commissions/slippage, margin, position monitoring)., and TradFi instruments documented for simulation: SPX (data from 2010), RUT/VIX (data from 2012), and GLD (data from 2012), with index vs equity option modeling notes..

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