TradeOdds vs Polygon.io (Massive): Raw OHLCV vs Pre-Computed Factors (2026)

Rebrand note. As of mid-2026, polygon.io now redirects to massive.com. The product, pricing model, and API are continuous — only the brand name changed. This comparison treats “Polygon” and “Massive” as the same vendor and references the current massive.com pricing throughout. The change is verifiable: visit polygon.io and observe the 301 redirect.

What is Polygon.io / Massive?

Polygon.io, now operating as Massive (massive.com), is a financial market data provider that sells raw OHLCV bars, options data, real-time quotes, websocket streams, and reference data through a REST API. The company has been one of the most popular choices for individual quants and small fintechs needing reliable market data since the late 2010s. Massive’s value proposition is breadth and reliability: comprehensive symbol coverage, multiple asset classes (stocks, options, indices, currencies, futures), and infrastructure built to handle high request volumes.

What Massive does not do is build an analytical layer on top of that data. The customer gets bars, the customer gets ticks, and from there the customer is on their own. If you want to know “how often did SPY rise after a 3% drop with VIX above 25,” Massive will sell you the underlying OHLCV. Computing the answer is the customer’s problem.

What is TradeOdds?

TradeOdds is a quantitative market analysis platform that sits one layer up. It maintains the same kind of clean OHLCV that Massive provides (35+ years, 3,210 active symbols), but it also pre-computes 16 indexed factor columns directly on top of that data — RSI zones, VIX buckets, market regime, streak behavior, magnitude bands, earnings proximity, analyst trend, macro risk, and eight more. Forward returns are pre-aligned holiday-adjusted columns (fwd_1d_pct, fwd_5d_pct, fwd_20d_pct), so the customer never writes their own merge_asof against a holiday calendar.

The result is that a question like “how often did SPY rise after a 3% drop with VIX above 25” is a single SQL query against pre-indexed columns and returns in under a second. The Power User tier ($99/month) exposes that database directly via POST /api/v2/query. The Pro tier ($29/month) exposes the same data through pre-built analyze and factor_match endpoints accessible via REST, MCP server, or Custom GPT.

Pricing comparison

Both vendors price by tier with monthly subscriptions. Massive charges for breadth and real-time access; TradeOdds charges for compute credits against the analytical database.

	Massive (Polygon)	TradeOdds
Free tier	$0 (5 API calls/min, 2 years history, end-of-day data)	$0 (10 lifetime Analyze runs, no signup)
Lowest paid	$29/month (Stocks Starter) — 5 years history, 15-min delayed, unlimited API calls	$19/month (Analysis) — unlimited Analyze on any symbol, 30+ years
Mid-tier	$79/month (Stocks Developer) — 10 years, 15-min delayed	$29/month (Pro) — Factor Match scanner + Ask Stanley AI + REST API + MCP server
Top individual	$199/month (Stocks Advanced) — 20+ years, real-time	$99/month (Power User) — Direct SQL access to the full database
Enterprise	Business pricing on request	$299/month (Quant) — 1M row cap, 5 concurrent queries
History depth	20+ years on top tier	35+ years on all paid tiers

Feature matrix

Capability	Massive (Polygon)	TradeOdds
Raw OHLCV (daily)	✓ all tiers	✓ all paid tiers
Real-time quotes	✓ on $199 Advanced	✗ daily OHLCV only
Tick / second aggregates	✓ on $29+	✗
Options data	✓ (separate plan)	✗
Pre-computed factor columns	✗	✓ (16 indexed, bitmasked)
Forward returns precomputed	✗	✓ (1d / 5d / 20d, both close-to-close and open-anchored)
Direct SQL access	✗ (REST only)	✓ (Power User and Quant tiers)
MCP server for Claude / Cursor	✗	✓ (tradeodds-mcp on npm)
OpenAI Custom GPT	✗	✓
Python SDK	✓	✓
Universe scanner across symbols	✗ (customer builds it)	✓ (Factor Match, Pro tier+)
Natural-language interface	✗	✓ (Ask Stanley, Pro tier+)

When to use Massive (Polygon)

Massive is the right choice when you need:

• Real-time or tick-level data. TradeOdds is daily OHLCV. Massive’s Advanced tier ($199/month) provides real-time stock data.
• Options, indices, currencies, or futures data. TradeOdds covers stocks, ETFs, and crypto. Massive offers separate products for each asset class.
• Websocket streaming. Massive offers websocket connections for live data ingestion. TradeOdds is request-response REST/SQL.
• You are building your own analytical layer. If your team has the engineering capacity to compute factors and forward returns yourself, raw bars from Massive at $29-$79/month is the cheaper baseline.

When to use TradeOdds

TradeOdds is the right choice when you need:

• Pre-computed factor columns and forward returns out of the box. Skip the weeks of data engineering required to derive RSI buckets, regime classifications, magnitude bands, and properly-aligned forward returns on top of raw bars.
• Direct SQL access to a quant-ready database. Power User ($99/month) provides POST /api/v2/query against an indexed Postgres with 16 factor columns. Massive offers no equivalent — you’d have to download data and host your own.
• MCP-native integration with Claude, Cursor, or Continue. TradeOdds publishes an MCP server on npm; Claude can run analyses or write SQL during conversations with no glue code. Massive does not.
• You don’t want to build the analytical layer yourself. This is the core distinction. Massive sells the inputs; TradeOdds sells the inputs plus the most common transformations already done.

Can you use both?

Yes, and some quant teams do. Massive provides real-time and tick-level coverage that TradeOdds doesn’t. TradeOdds provides the pre-computed factor analytics that Massive doesn’t. A typical pattern: TradeOdds is the research and back-of-the-envelope screening tool used by the human researcher or AI agent; Massive feeds the live trading system.

Summary

The decision comes down to where you want to spend your team’s engineering time. If you want raw bars and you’ll build the analytics yourself, Massive is the lower-cost baseline. If you want the factor layer pre-built — including indexed RSI/VIX/regime columns and pre-aligned forward returns — TradeOdds at $29/month for the analytical tools or $99/month for direct SQL is the faster path. The MCP server is an additional differentiator for any team building AI-agent-driven workflows.

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Verification. This comparison was verified on June 4, 2026 against massive.com/pricing. A timestamped screenshot of the Massive pricing page as it appeared on that date is archived in the TradeOdds repository at /assets/evidence/massive-pricing-2026-06-04.jpg. Material changes to Massive’s pricing or feature set may render specific numbers above outdated; the date above signals temporal scope. If you observe a discrepancy with current Massive pricing, please contact support@tradeodds.com and we will refresh the comparison and update the verification date.

Disclaimer. Comparison made in good faith using publicly available information at the time of writing. TradeOdds provides historical analysis for informational purposes only. This is not investment advice. Past performance does not guarantee future results.