What changed
MakerDAO’s 2020 “Black Thursday” liquidations largely settled at 0 bids, a failure the post‑mortem ties to a cascading price collapse and network congestion that broke the auction mechanism. A MakerDAO analysis documented the 0‑bid outcomes and the auction process failure during that episode (MakerDAO analysis).
That episode is important because it provided concrete evidence that auction‑style, fixed liquidation mechanisms can stop functioning when market moves are fast and on‑chain congestion spikes. The MakerDAO record shows auctions did not attract bids and so did not clear positions in the way designers expected.
Where uncertainty remains
Protocols and observers differ on how broadly to generalize from Maker’s experience. Major lending platforms such as Aave and Compound operate with fixed collateral ratios that trigger liquidations according to pre‑set formulas rather than continuously recomputing exposure across a blended portfolio; Aave’s documentation describes this fixed, parameter‑driven approach to liquidation mechanics (Aave protocol docs).
Separately, events in 2023 involving Curve pools were reported as episodes of acute liquidity stress; coverage of that episode emphasizes market‑driven liquidity squeezes rather than an externally induced exploit, and commentators disagree about the proximate cause. Reporting on the 2023 Curve episode framed it as a market‑impact event that stressed LP exposures and liquidity rather than a single smart‑contract failure (Curve 2023 coverage).
What this means for collateral operations
Two operational truths are clear from the linked episodes. First, liquidation formulas that rely on fixed triggers and on‑chain auctions can become ineffective when prices move faster than market participants or bots can respond and when transaction congestion raises settlement friction. MakerDAO’s 0‑bid auctions demonstrated that outcome in practice.
Second, collateral protection is fundamentally governed by protocol parameters that are changed through governance processes; those thresholds are not continuously recalibrated in real time. AAVE’s and similar protocols’ reliance on governance to set and adjust collateralization and liquidation parameters means that parameter updates can lag rapid market shifts.
Both points combine into a practical risk: if liquidation mechanisms cannot source liquidity or if governance‑set thresholds are stale during a price shock, undercollateralization events can cascade, especially where collateral takes the form of LP tokens or other compositionally sensitive assets.
What this changed for collateral markets
The takeaways are measured rather than revolutionary. Black Thursday did not single‑handedly invalidate auction mechanisms, but it exposed boundary conditions where fixed liquidation formulas and governance cadence interact poorly with extreme market dynamics and on‑chain frictions. Likewise, the 2023 Curve liquidity stresses reinforced that LP‑token collateral can transmit market squeezes across protocols when liquidity providers face rapid, correlated withdrawals.
Assetify judgment: The actual revelation from these episodes is structural, not incidental. Fixed liquidation formulas plus governance‑paced parameter updates create a window of vulnerability during sharp price moves; when collateral includes LP tokens or other pooled exposures, that vulnerability becomes a channel for amplification. For lenders and collateral managers, the practical consequence is to treat these design traits as persistent, protocol‑level risk drivers rather than one‑off failures.
