# Bitcoin's biggest backer threatens to sell — short MSTR as the BTC floor cracks

_AI-generated trading idea · SHORT · BTC, MSTR_

> Canonical page: https://commonquant.ai/research/for-you/bitcoin-s-biggest-backer-threatens-to-sell-short-mstr-as-the--3cb3cdea-fb45-4b57-b9dd-a3596a4eccee

The biggest corporate holder of Bitcoin just announced it might start selling to raise cash, right as investors are pulling record amounts of money out of Bitcoin funds. The people betting on lower prices are also loading up on protection.

## Idea

Strategy (formerly MicroStrategy) built its entire strategy around buying Bitcoin, but news broke they may sell up to $1.25B of it. If the largest corporate buyer turns into a seller, it removes the key floor under the stock. Meanwhile, record $4B ETF outflows show large investors are already fleeing Bitcoin, and the options market is loaded with bearish bets. This combination of a large forced seller and waning institutional demand spells trouble for MSTR, which trades at a huge premium to its Bitcoin holdings.

## What happened since

- **BTC** · SHORT · T+1 2.4009% · T+5 8.5866%

_Price changes since publication; updated 2026-07-12T03:12:15.458211+00:00._

## Key details

- Symbols: BTC, MSTR
- Timeframes: D1
- Tags: \#crypto, \#macro, \#event\_driven

## Community

- Upvotes: 1
- Views: 0
- Copies: 0
- Cosigns: 0

## News sources

- [Strategy Says It May Sell Up to $1.25 Billion of Bitcoin](https://www.bloomberg.com/news/articles/2026-06-29/strategy-says-it-may-sell-up-to-1-25-billlion-of-bitcoin) — Bloomberg
- [Bitcoin put-call ratio hits 1-year high: Are bears preparing for drop to $55K?](https://cointelegraph.com/markets/bitcoin-put-call-ratio-hits-1-year-high-are-bears-preparing-for-drop-to-55k) — Cointelegraph
- [Bitcoin clings to key support level as weekly US spot ETF outflows hit $1.8B and Fed rate hike bets mount: analysts](https://www.theblock.co/post/406516/bitcoin-clings-to-key-support-level-as-weekly-us-spot-etf-outflows-hit-1-8b-and-fed-rate-hike-bets-mount-analysts) — The Block

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