OptionSpace vs MarketPlays

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

OptionSpace compared with MarketPlays
Detail	OptionSpace	MarketPlays
What it does	Volatility data and research tools powered by a market-maker-grade fitting and pricing engine	You call the theme, we build the basket.
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	US
Pricing model	Freemium	Freemium
Pricing	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	Free: create account, pick themes, build portfolio, join discussions, connect 1 brokerage, place 1 trade, access AI research and watchlists. Pro: $9.99/month on web (7-day free trial), $11.99/month on Android, $14.99/month on iPhone; yearly plans save about 30%. Pro includes unlimited themes from 35
Key features	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	350+ investment themes Customizable ETF and crowd blend Real portfolio syncing via SnapTrade AI stock research Community discussions One-click basket investing Connects to 9 brokerages Portfolio change history Live intraday chart (Pro) Daily portfolio updates (Pro)
What makes it different	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	Blend real ETF holdings with actual investor holdings to see where money is moving No copying a single investor or fund; uses aggregated anonymous investor data Money and positions stay in your existing brokerage No personalized investment advice or automatic trading Explore unlimited themes and research for free
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	10 no change since last check
Trust Flow (Majestic)	0	4
Citation Flow (Majestic)	0	23
Referring domains (Majestic)	0	29

6 details filled in for both companies.

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