In-Depth Analysis of the May 19, 2021 Incident: Complete Record from Musk's Remarks to Market Collapse

Less than 24 hours left, and another 519 Memorial Day is approaching. For investors who experienced the storm in May 2021, the memory of the 519 incident remains vivid — that sudden black swan event that shattered the dreams of millions of becoming rich overnight in just a few hours. Now, as the big players hold the market tightly in Wall Street’s hands, we may no longer see such exhilarating ups and downs. But looking back at the origins of the 519 event can still help us understand the essence of the market.

The Making of a “Black Swan Storm” — The Three Main Causes of the 519 Incident

The 519 event didn’t happen out of nowhere; it was the result of multiple factors colliding perfectly at a specific moment.

Elon Musk’s Twitter “Turnaround”

In early 2021, Musk was the brightest star in the crypto world. He led Tesla to invest $1.5 billion in Bitcoin in Q1, then announced that BTC would be accepted as a payment method for cars. Promoting meme coins like Dogecoin on Twitter made him the “King of Crypto Marketing,” with every tweet stirring the market.

However, everything changed dramatically in mid-May. On May 12, Musk suddenly tweeted that Tesla had stopped accepting Bitcoin payments, citing environmental concerns — the huge energy consumption of Bitcoin mining leading to increased fossil fuel use. This decision struck like a thunderbolt, causing Bitcoin to drop from $57,000 to $46,000.

Things got worse. On May 16, Musk hinted on Twitter that Tesla might sell its Bitcoin holdings, causing market confidence to collapse. By May 17, he clarified that Tesla had not sold any Bitcoin, but it was too late — panic had already set in.

Regulatory Crackdowns

Another key trigger was regulatory actions. On May 18, China’s Internet Finance Association, Banking Association, and Payment & Clearing Association jointly issued notices banning members from engaging in virtual currency trading, exchanges, and related financial services. The same day, Inner Mongolia’s Development and Reform Commission set up a reporting platform for crypto mining companies, intensifying oversight.

While these measures weren’t entirely new, the market interpreted them as a collective regulatory crackdown, further fueling investor panic.

Market Bubble Reaching a Critical Point

Looking back at the first four months of 2021, the crypto market experienced a frenzy. Bitcoin soared from $30,000 at the start of the year to $64,000 in mid-April, an increase of over 100%. Ethereum, Litecoin, TRON, and other major coins also multiplied in value.

Even more absurd were the emerging altcoins. Dogecoin, Shiba Inu, SafeMoon, and others skyrocketed from fractions of a cent to several dollars, with gains of thousands of times. These coins’ rises lacked fundamental support, relying solely on social media hype and speculative frenzy. The market bubble had swollen to its limit, just waiting for a spark.

What Happened on May 19? The Trigger and Chain Reaction of the 519 Event

Five Days of Warning (May 12–May 18)

From Musk’s tweets to regulatory notices, signs of market suppression appeared. Exchange net inflows increased, indicating asset transfers. Liquidations surged, and the fear index kept climbing. During these five days, the market felt like a balloon being squeezed underwater — investors sensed imminent danger.

Black Swan Descends (Early Morning to Morning of May 19)

On May 19, everything exploded.

Starting early morning, Bitcoin accelerated its decline. Participants rushed to sell their holdings, spreading panic worldwide. A domino effect ensued:

• Bitcoin dropped from $43,000 on the evening of May 18 to $30,000 by the morning of May 19 — a 30% drop in one day.
• Ethereum fell from $3,300 to $1,900 — a 42% plunge.
• Other coins also fell over 30%, some halving in value.

Exchange servers faced near-collapse under panic selling. Downtime, lag, and delays became common. Countless investors watched their assets shrink on screen, unable to close positions in time. Liquidation amounts hit new highs, the VIX fear index soared to 0.8 (the highest since 2021), and the greed index plummeted to 10 (the lowest since March 2020).

That day was dubbed “the darkest hour in crypto.”

Rapid Rebound (Afternoon of May 19–May 20)

But the market quickly turned around. By the afternoon of May 19, some institutional and seasoned investors started buying the dip. Buy orders increased, Bitcoin rebounded from $30,000 to $40,000 by May 20 — a 33% rise in one day. Ethereum surged from $1,900 to $2,800, up 47%.

Many coins rebounded over 100%. The fear index dropped to 0.6, and the greed index rose to 27. Investors exhaled, and liquidity issues eased.

Adjustment and Reflection (May 20 onward)

Subsequently, the market entered a phase of reduced volatility and consolidation. Bitcoin traded between $35,000 and $40,000; Ethereum hovered around $2,300–$3,000. The fear index stabilized around 0.5, and the greed index stayed near 30. Investors began to calm down from emotional selling, gaining a more rational view of crypto’s value and future.

Lessons from the 519 Incident: The Market Is Always a Stage for Emotions

The core of the 519 event was the rapid shift of market sentiment from greed to fear. During bull markets, investors tend to follow the herd blindly, piling in and overvaluing assets. When triggers appear, panic spreads like a contagion, with each sell-off sparking the next wave of fear.

Five years later, the structure of the crypto market has changed significantly. Wall Street institutions have entered, altering volatility patterns, and large holders now exert more influence over prices. This suggests that the extreme, emotion-driven swings of the past may be a thing of the past.

But the warning from the 519 incident remains valid: markets are never eternal bulls, and risks always lurk at the most optimistic moments. Those who lived through 519 paid a heavy price to learn respect for the market. For newcomers, the record of 519 serves as a profound lesson in risk awareness.