Apyx's apxUSD stablecoin broke its dollar peg on June 4, sliding to $0.93 during Bitcoin's selloff toward $63,000. The depeg exposes structural risks in equity-backed stablecoins, a growing category in decentralized finance.

ApxUSD's design ties its stability to Strategy's STRC preferred stock rather than traditional collateral. When equity markets weaken alongside crypto downturns, this dual exposure creates cascading derisking pressure. Bitget flagged the brief 7-cent depeg as evidence that equity-collateralized stables inherit stock volatility without the safety buffer of cash or hard assets.

The incident revives earlier concerns about DeFi dollar design. Unlike established stablecoins like USDC or USDT, which hold reserve currencies and earn trust through transparency, apxUSD relies on a single corporate equity position. Market stress tests these assumptions immediately. Bitcoin's 7-8 percent decline triggered margin pressures across leveraged positions, forcing liquidations that hit apxUSD's backing.

Strategy's STRC preferred stock carries its own liquidity and solvency risks. If the underlying company faces operational challenges, preferred shareholders sit further down the creditor queue than bondholders. Stablecoin holders banking on that equity's stability face concentrated counterparty risk most don't fully price in.

Apyx framed the depeg as a feature, not a bug. The protocol absorbed reserve risk through STRC holders rather than spreading contagion across the broader system. That compartmentalization prevented bank runs on apxUSD itself during the volatility spike.

The episode highlights why equity-backed stables remain a niche experiment rather than mainstream infrastructure. USDC and Tether dominate because they offer perceived stability through reserve transparency and regulatory compliance. ApxUSD offers higher yields but demands users trust both Apyx's mechanics and Strategy's business fundamentals simultaneously. Most market participants opt for simpler collateral models during uncertain periods.