Log in

Research Report

Flash Crash - 18 April 2021: What's Next?

Updated: Aug 31, 2024
Published: Apr 19, 2021
0
Share:

April 18th sets yet another record day for the cryptocurrency market, this time in total liquidations over a 24H period.

Post Feature Image

$10,000,000,000 LIQUIDATED
The data varies from one data aggregator to another but the number agreed upon ranges between $6.5B and $10B. For reference, the Black Swan of 2020 liquidated just over $1B in long positions even though the market dipped more than twice as much as it did today.

On average, crypto-asset prices dropped by an average of -18% with some of them crashing by over -99% of their value on some exchanges. For example, REN (RenProtocol), which was trading near the $1 mark, dropped all the way down to just shy of $0.01 on Binance.

aligncenter size-full wp-image-62143

The Cause

People are attributing the crash to different events, the two most popular ones are:
  • Blackout in XinJiang which caused a -40% drop in the Bitcoin network hashrate
  • Unconfirmed news about the U.S. Treasury charging several financial institutions with money laundering through crypto
The former is a random attribution to price action because the news is actually more than two days old - the causation isn't there. The latter is more probable but until now it's not been anything other than unconfirmed news, but still could have initiated the selling pressure.

aligncenter size-full wp-image-62141

The news, which we stress again as unconfirmed, may have triggered the selling and could be held accountable for a drop of up to -5% in prices. What accentuated the downside move is leveraged longs held on futures exchanges and their liquidations.

Liquidations

Leverage is a double-edged sword and should not be used by untrained traders. With that being said, leverage is plentiful and easily accessible in crypto which always leads to many new market participants falling into the common trap of over-leveraging.

Example A long position taken with 50X leverage gets liquidated at just under a -2% movement in price (2% X 50 = 100% of collateral). The reason they get liquidated at under -2% is because the exchange needs to protect itself and ensure the position does not get closed at anything more than -2% and order slippage can cause that to happen which leads to an exchange having to cover losses. For that reason, they liquidate a position earlier than it should be in theory as a form of protection.

When a long position needs to be liquidated (closed) it means the long should be sold on the market. This causes excess selling pressure, first the 125X longs get liquidated which pushes the market lower and liquidated the 100Xers, then 50X and today even some positions at 5X were liquidated. This phenomenon is called cascading liquidations and this is what caused the market to drop this hard.

This brings us to an important point: every exchange have their own model for a liquidation engine. We will not delve into the details but we'll showcase how certain exchanges have traders' best interest in mind while others don't, we'll illustrate with a couple examples.

Binance: Owned 30% of Futures Open Interest ($13B out of $44B) but 60% of total liquidations ($4B out of $6.65B).

FTX: Owned 16.5% of the Futures' Open Interest ($7.25B out of $44B) but only 2.7% of total liquidations ($180M out of $6.65B).

By comparing the results, we can clearly see that Binance's liquidation engine is quite harsh and over-protective of Binance whereas FTX has one of the leading liquidation engines that is protective of customer funds.

Top Analysis: is this the top?

According to Dow Theory, volume must confirm the trend. Which means in order for a trend change to take place, we must see a change from high volumes during upside moves to high volumes during downside moves - or very simply: high volume selling. We'll take a look at both BTC & ETH spot markets to make a judgement.

aligncenter size-full wp-image-62181

aligncenter size-full wp-image-62179

In both cases, we can see the volumes on the spot market were not out of the ordinary by any means. This movement was led by the futures market because of the liquidations that took place. Based on the data we've been looking at throughout the day, we've come to the conclusion that odds are the top is still not in.

However, new retail participants may panic further in the coming days which can lead to some more downside wicks, especially on altcoins.

Get started for free

Create your free account or log in to read the full article.

By signing up, you agree to our Terms & Conditions
Recommended from Cryptonary
ETH vs SOL in 2025-26: Rotation Ahead?
PRO
Research Report
ETH vs SOL in 2025-26: Rotation Ahe...The rivalry between Ethereum and Solana has shaped crypto for years. Two networks built on divergent...
15 min read
Nov 13, 2025
Passive Income: Top Ranges of the Week
PRO
Yield farming
Passive Income: Top Ranges of the W...In a choppy, directionless market, the smartest opportunities come from strategies that work even wh...
3 min read
Dec 8, 2025
Cryptonary’s Thesis on Concentrated LP: Turning Volatility Into Passive Income
Yield farming
Cryptonary’s Thesis on Concentrated...The biggest misconception in crypto is that you need to know where the market is headed to make mone...
18 min read
Dec 4, 2025