# CorpStacking

> Real-time tracker for corporate, government, and ETF Bitcoin holdings. SEC filings parsed in minutes; public API for Pro+ subscribers.

Last updated: 2026-04-21T07:38:31.371Z

## Snapshot

- BTC price: $76,190
- Tracked entities: 25+ active
- Combined holdings (top 25): 3,443,386.87 BTC ($262,351,645,391)

## Primary pages

- [Home / live market overview](https://www.corpstacking.com/)
- [All tracked companies](https://www.corpstacking.com/companies)
- [Markets — live crypto prices](https://www.corpstacking.com/markets)
- [Pricing and plans](https://www.corpstacking.com/#pricing)

## Treasuries by token

- [Corporate Bitcoin treasuries](https://www.corpstacking.com/treasuries/bitcoin) — available on all paid plans
- [Corporate Ethereum treasuries](https://www.corpstacking.com/treasuries/ethereum) — Treasuries+ (Pro+)

## Top holders

1. [Strategy (MSTR)](https://www.corpstacking.com/companies/strategy) — 815,061 BTC · $62,099,497,590
2. [BlackRock iShares Bitcoin Trust (IBIT)](https://www.corpstacking.com/companies/blackrock-ibit) — 799,151 BTC · $60,887,314,690
3. [Grayscale Bitcoin Trust (GBTC)](https://www.corpstacking.com/companies/grayscale-gbtc) — 694,811.87 BTC · $52,937,716,141
4. [United States (GOV-US)](https://www.corpstacking.com/companies/united-states) — 207,189 BTC · $15,785,729,910
5. [China (GOV-CN)](https://www.corpstacking.com/companies/china) — 194,000 BTC · $14,780,860,000
6. [Fidelity Wise Origin Bitcoin Fund (FBTC)](https://www.corpstacking.com/companies/fidelity-fbtc) — 185,536 BTC · $14,135,987,840
7. [United Kingdom (GOV-GB)](https://www.corpstacking.com/companies/united-kingdom) — 61,000 BTC · $4,647,590,000
8. [ARK 21Shares Bitcoin ETF (ARKB)](https://www.corpstacking.com/companies/ark-21shares) — 48,020 BTC · $3,658,643,800
9. [Ukraine (GOV-UA)](https://www.corpstacking.com/companies/ukraine) — 46,351 BTC · $3,531,482,690
10. [Twenty One Capital (XXI)](https://www.corpstacking.com/companies/twenty-one-capital) — 43,514 BTC · $3,315,331,660
11. [Metaplanet (TYO:3350)](https://www.corpstacking.com/companies/metaplanet) — 40,177 BTC · $3,061,085,630
12. [Bitwise Bitcoin ETF (BITB)](https://www.corpstacking.com/companies/bitwise-bitb) — 40,000 BTC · $3,047,600,000
13. [Marathon Digital (MARA)](https://www.corpstacking.com/companies/marathon-digital) — 38,689 BTC · $2,947,714,910
14. [Invesco Galaxy Bitcoin ETF (BTCO)](https://www.corpstacking.com/companies/invesco-btco) — 35,000 BTC · $2,666,650,000
15. [21Shares Bitcoin ETP (21BC)](https://www.corpstacking.com/companies/21shares-21bc) — 31,000 BTC · $2,361,890,000
16. [Bitcoin Standard Treasury (BSTR)](https://www.corpstacking.com/companies/bitcoin-standard-treasury) — 30,021 BTC · $2,287,299,990
17. [Bullish (BLSH)](https://www.corpstacking.com/companies/bullish) — 24,300 BTC · $1,851,417,000
18. [VanEck Bitcoin ETF (HODL)](https://www.corpstacking.com/companies/vaneck-hodl) — 20,000 BTC · $1,523,800,000
19. [Riot Platforms (RIOT)](https://www.corpstacking.com/companies/riot-platforms) — 15,680 BTC · $1,194,659,200
20. [Coinbase (COIN)](https://www.corpstacking.com/companies/coinbase) — 14,548 BTC · $1,108,412,120
21. [CleanSpark (CLSK)](https://www.corpstacking.com/companies/cleanspark) — 13,099 BTC · $998,012,810
22. [Bhutan (GOV-BT)](https://www.corpstacking.com/companies/bhutan) — 11,688 BTC · $890,508,720
23. [Trump Media & Technology (DJT)](https://www.corpstacking.com/companies/trump-media) — 11,542 BTC · $879,384,980
24. [Tesla (TSLA)](https://www.corpstacking.com/companies/tesla) — 11,509 BTC · $876,870,710
25. [Trump Media (DJT-2) (DJT-2)](https://www.corpstacking.com/companies/trump-media-2) — 11,500 BTC · $876,185,000

## Public API (v1)

Base: `https://www.corpstacking.com/api/v1` — authenticated via `x-api-key` header. Requires Pro ($9/mo, 1k req/mo) or Pro+ ($19/mo, 10k req/mo).

- `GET /api/v1/tokens` — list supported tokens (BTC public; ETH/SOL/etc. unlock with Pro+)
- `GET /api/v1/companies?token=bitcoin|ethereum` — list tracked entities (pagination: limit, offset)
- `GET /api/v1/companies/{slug}` — single entity + last 100 purchases
- `GET /api/v1/purchases?token=bitcoin|ethereum` — purchase events (filter: company, order, limit, offset)
- `GET /api/v1/market` — live token prices + market stats
- `GET /api/v1/stats?token=bitcoin|ethereum` — aggregate holdings + unrealized PnL per token
- `GET /api/v1/export?token=bitcoin|ethereum` — bulk export (format=json|csv, limit up to 50k)
- `GET /api/v1/usage` — quota remaining for the calling key

Any `?token` other than `bitcoin` requires a Pro+ (Treasuries+) key; Pro keys get a 403 with code `treasuries_plus_required`.

All responses include `X-Request-Id`, `X-RateLimit-*`, `X-Quota-*` headers and CORS-open.

## Data for LLM retrieval

- [llms-full.txt](https://www.corpstacking.com/llms-full.txt) — full holdings + recent purchases in Markdown
- Per-company: `https://www.corpstacking.com/companies/{slug}/llms.txt`
- [Atom feed](https://www.corpstacking.com/feed.xml) — most recent 50 purchase events (updated every 15 min)
- [Sitemap](https://www.corpstacking.com/sitemap.xml)

## Licensing

Data sourced from public SEC filings, official treasury disclosures, and on-chain records. Free to cite with attribution to corpstacking.com.