According to @CNBC, former Treasury Secretary and ex-Goldman Sachs chair Robert Rubin urged investors to keep the October 1987 Black Monday crash in mind as a present risk cue for markets, highlighting downside scenarios worth considering for positioning. Source: CNBC. The 1987 crash saw the Dow Jones Industrial Average plunge 22.6 percent in a single day and led to the adoption of market-wide circuit breakers that continue to govern equity selloffs. Sources: Federal Reserve History and U.S. Securities and Exchange Commission. For crypto traders, equity stress has historically transmitted to digital assets as correlations with U.S. stocks rose markedly after 2020, increasing downside risk to BTC and ETH during risk-off shocks. Source: International Monetary Fund.