Leopold Aschenbrenner held $5.7B SanDisk and $5.6B Micron before margin call, with heavy Bitcoin mining stocks portfolio concentration risks.

Hyperliquid whale holds 120000 ETH long at $2261 avg price now facing $58M unrealized loss after ETH drops to $1759 with liquidation at $1506.

According to @alice_und_bob, they publicly reported being liquidated on Nov 22, 2025, indicating a forced closure of their position. Source: @alice_und_bob on X, Nov 22, 2025. In derivatives and margin trading, liquidation occurs when account equity falls below the maintenance margin and positions are automatically closed to cover losses. Source: CME Group, Futures Margin and Maintenance Margin education. To reduce liquidation risk, traders typically lower leverage, add collateral, and use stop-loss orders while monitoring venue maintenance margin thresholds. Source: Binance Academy, Liquidation and Margin; CFA Institute, Risk Management Basics.

According to @52kskew, BTC selling showed hallmarks of forced liquidation with poor execution and urgency, indicating either a deep drawdown position or margin call pressure, source: @52kskew on X, Nov 21, 2025.

According to @milesdeutscher, even a 70% BTC drawdown would not force MicroStrategy (MSTR) or Michael Saylor to sell because there is no margin call on their debt and the average loan maturity is 4.8 years (source: @milesdeutscher). The source adds that the main tail risk is BTC staying low for years while capital markets stop funding the company (source: @milesdeutscher). The source further notes MicroStrategy could mitigate by selling small portions of BTC and pushing payments back if needed (source: @milesdeutscher). For BTC and MSTR traders, this indicates lower near-term forced-selling pressure from MicroStrategy during sharp drawdowns, per the source (source: @milesdeutscher).