Polygon.io rebranded to Massive in October 2025 — same product and API, new name. It's built market-data-first: real-time and historical price/quote/trade data is the core product, and fundamentals are an upsell rather than the focus.
| Feature | Alpevox | Polygon.io (Massive) |
|---|---|---|
| Fundamentals pricing | $29/mo (Pro), $39/mo (Pro+) · 14-day free trial, no card required | Fundamentals require the $199/mo "Advanced" stocks plan, or a standalone $29/mo "Financials & Ratios" add-on |
| Lower tiers | 100–150 req/min · 300K–400K req/month included | Free/$29/$79 stocks tiers cover price data only — no fundamentals included |
| Fundamentals depth | Full income statement, balance sheet & cash flow — one schema, no separate paywall | "Financials & Ratios" available only on the top price-data tier or as a separate add-on |
| Point-in-time lineage | Every value linked to its SEC filing date + accession number | Not documented on the public pricing page |
| Ratios & DuPont | Liquidity, solvency, profitability ratios + full DuPont ROE — pre-calculated | Ratios included where Financials & Ratios is enabled; DuPont breakdown not documented |
| Growth (YoY/CAGR) | YoY growth + CAGR for any metric, up to 15 years | Not provided as a dedicated endpoint |
| Valuation ratios | P/E, P/B, P/S, EV/EBITDA — live price + latest fundamentals combined | Not provided as a dedicated endpoint |
| Data source | SEC EDGAR XBRL filings, synced nightly | Aggregated market-data feeds; not exclusively SEC filings |
Polygon.io (Massive) figures verified against massive.com/pricing (formerly polygon.io/pricing) as of 2026-09-16. Pricing and features change — check the source directly before relying on these figures.
Polygon.io rebranded to Massive on October 30, 2025. Same company, product, and API — polygon.io now redirects to massive.com.
Fundamentals are your primary need, not price ticks — Alpevox includes full fundamentals at $29/mo instead of gating them behind a $199/mo tier
You need point-in-time filing lineage for backtesting, not just current financials
You want ratios, DuPont, growth, and valuation pre-computed in one schema instead of assembled from raw statement data