Pro Stock Tracker vs OptionSpace

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Pro Stock Tracker compared with OptionSpace
Detail	Pro Stock Tracker	OptionSpace
What it does	Investment portfolio tracker for long-term investors monitoring stocks, ETFs, crypto, forex, bonds, and mutual funds	Volatility data and research tools powered by a market-maker-grade fitting and pricing engine
Stage	Established	Not given
Founded	Not given	Not given
Based in	GB	US
Pricing model	Not given	Freemium
Pricing	Not given	Free sample plan with no card required. Retail subscription available for individual personal use in the United States with daily limits on API credits. Institutional plans available at contact pricing for any business use with annual licenses invoiced monthly via ACH or wire. Higher-frequency data
Key features	Accurate Money-Weighted Rate of Return (MWRR) calculation Automated dividend and corporate action tracking Multi-portfolio support Global market and currency support Portfolio benchmarking Performance, trade, and dividend reports Diversity report and rebalancing tools Cash account tracking Export and import trades as CSV Portfolio sharing and collaboration	Fitted volatility surfaces with bid-ask-weighted curves across every expiration Accounts for American-style options with early exercise, discrete dividends, and implied borrow rates One-minute granularity historical data across 140+ symbols spanning 10 years Realized volatility calculations from 385 intraday returns per day Vol Screener, Vol Premium, Skew Scanner, and Earnings Vol analysis tools Historical simulation using actual bid-ask prices and fitted vol surfaces Python package for research workflows Interactive visual dashboards for surface inspection and event studies Model Context Protocol (MCP) integration for AI agent workflows Greeks and constant-maturity metrics via API and dashboards
What makes it different	True performance calculation using Money-Weighted Rate of Return like Warren Buffett and pension funds Covers 250,000+ financial instruments across 80+ global exchanges Unbiased analysis without broker incentives or financial influence Automatic tracking of dividends, mergers, spin-offs, and corporate restructuring Web and mobile access without app store downloads	Arbitrage-free fitted volatility wings extending beyond quoted book using Lee-moment discipline Accessible to quantitative researchers and AI workflows through Python, API, and MCP without requiring market-maker infrastructure 10 years of consistent historical data at one-minute granularity across 140+ symbols for rigorous backtesting
Community votes	0	0
DR (Domain Rating by Ahrefs)	24 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	4	0
Citation Flow (Majestic)	21	0
Referring domains (Majestic)	25	0

4 details filled in for both companies.

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