The Harshest 'Mantra' in Trading: No Ceiling on Rises, No Floor on Falls! In-Depth Review of the YYB Incident and Painful Lessons

In the world of forex and commodity trading, there is a seemingly 'counterintuitive' principle that has saved countless traders: prices can rise without ceiling and fall without floor. This isn't about giving up trading—it's the harshest 'mantra' to prevent you from being driven by emotion and common sense into self-destruction during extreme markets.

Countless veteran traders' painful lessons prove: the market has no absolute top or bottom. When you think 'it can't possibly rise/fall further,' the market often slaps you hard.

2020 YYB Incident: Brutal Lesson of 'No Floor on Falls'

Many accept 'no ceiling on rises'—bull market euphoria pushes prices higher. But 'no floor on falls' leads countless to hold to ruin. The 2020 crude oil negative price event is the bloodiest example.

Pandemic + OPEC+ failure caused demand collapse and supply explosion. On April 21, 2020, WTI May contract settled at -37.63 USD/barrel—first negative oil price in history! Domestic YYB product flaws (wrong rollover timing, no manual stop-loss, settlement at historic low) caused over 60,000 investors to lose principal and owe banks massive debts.

'Oil has production costs—it can't go negative, right?' The market taught them: there is no absolute bottom, only lower.

The Mantra Isn't Passivity—It's Ultimate Protection

'No ceiling, no floor' doesn't mean abandoning forecasts—it's a reminder: never fight trends with 'feeling,' 'experience,' or 'common sense.' When prices seem 'impossible to continue,' never go heavy counter-trend.

Black swans, liquidity crises, and squeezes can push prices beyond imagination. But we can still use technical tools for staged directional judgment.

At FX Killer, we repeatedly emphasize this iron rule. Trainees must deeply internalize 'follow trends, not predict extremes' during simulation—this is why our pass rate is strict yet produces traders who survive long-term.