Strategy (MSTR) is the world's largest corporate Bitcoin holder (843,706 BTC at avg cost $75,699, ~$63.87B aggregate basis, ~3.4% of total supply) operating as a leveraged Bitcoin treasury whose equity value is a reflexive function of two variables: BTC price and the mNAV premium the market assigns its net Bitcoin value. The entire accretion machine depends on that premium staying above 1.0x — only then can ATM equity, convertibles and preferred be issued to buy more BTC and grow BTC-per-share ('Bitcoin Yield'). As of 2026-06-05 the reflexive case has cracked but not broken: BTC has fallen to ~$62K (50%+ below the Oct-2025 ATH), putting the entire stack ~$11B underwater for the first time; the USD cash reserve has collapsed from $2.25B to $900M in six months; and Strategy executed its first BTC sale since December 2022 (32 coins) specifically to fund STRC preferred dividends — converting the 'never-sell' doctrine from a marketing promise into an operational tool. The equity still trades at a ~1.25x premium to net Bitcoin value, so the market has not yet capitulated to the death-spiral (sub-1.0x) regime; that premium, not the BTC level alone, is the binary the thesis now hinges on. The bull case needs BTC back above ~$100K to re-arm accretive issuance; the bear case is a slow grind to NAV (or below) as ~$0.8-1.0B of fixed preferred dividends are met by liquidating BTC into a falling market.