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80% of trading volume comes from Rug funds: The shocking truth behind the new high in Base chain activity and Uniswap liquidity

80% of trading volume comes from Rug funds: The shocking truth behind the new high in Base chain activity and Uniswap liquidity

ChaincatcherChaincatcher2024/10/29 12:00
By:BlockBeats

Base has become a minefield, and anyone trying to find new tokens there has a high probability of encountering these rug pull projects.

Author: shushu, BlockBeats

Base is becoming a shining star in the EVM space, but according to Dune data analyst jpn memelord , while the trading volume of Uniswap on the Base platform seems prosperous, a large portion of the transactions is driven by repeatedly "pulling the plug" liquidity pools. This seems to confirm some community views that there are many "big cuts" on Base. What do the real data look like? BlockBeats has compiled and organized the research by jpn memelord for readers' reference.

The False Prosperity of Uniswap on Base

At the beginning of September, Uniswap tweeted that 98.9% of new trading pairs on Base were launched through the Uniswap protocol.

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Data shows that over the past few months, the Base platform has launched more than 600,000 Uniswap v2 liquidity pools, accounting for 98.9% of all newly created trading pairs on the platform, which is undoubtedly quite remarkable. However, it is worth further exploring who created these trading pairs.

In fact, a significant portion of the liquidity pools was deployed by a few addresses, with the top three addresses being related, meaning that one person or entity created 3.7% of the liquidity pools on Base, and there are other addresses that are also related.

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Image source: Dune

Overall, addresses that created more than 500 liquidity pools contributed over 127,000 pools, with more than 20% of all liquidity pools deployed on Base created by just 87 independent addresses (or even fewer independent entities).

What is the actual situation of these liquidity pools?

In fact, most of them are ordinary altcoins that are "pulled the plug" within minutes, lacking any real value. As shown in the example below, these liquidity pools are not productive projects but outright scams.

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The strategy commonly employed by operators creating a large number of liquidity pools is to first disperse ETH to multiple wallets, then issue new tokens, buy through these backup wallets, and finally quickly withdraw liquidity. This operation not only quickly profits but also artificially exaggerates the trading volume metrics.

Each new "pulling the plug" operation typically brings in thousands of dollars in trading volume. These operations are conducted around the clock by dozens of addresses, with each liquidity pool lasting only 20-30 minutes, allowing a single address to launch more than 50 such projects daily.

In this way, each address can generate $250,000 in trading volume daily with just a small amount of initial capital.

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"This is like sticking a few $100 bills on a boomerang and throwing it out 50 times. You haven't really generated hundreds of thousands of dollars in trading volume; you're just entertaining yourself," jpn memelord believes.

The frequent occurrence of this phenomenon may have multiple reasons. On one hand, it is to deceive unsuspecting users into buying these tokens; on the other hand, it may be to profit from poorly calibrated front-running bots; additionally, it could be a strange form of farming for a potential (but unlikely) Base airdrop.

The key question is how to effectively screen and filter these operations.

Initially, jpn memelord thought that setting a limit on the number of liquidity pools created by each address could serve as a filter, removing those junk addresses composed of a large number of liquidity pools. However, he found that over half of the liquidity pools were deployed by addresses that created fewer than 5 pools.

He speculated that many liquidity pools might be created by farming or "pulling the plug" bots, which frequently change addresses to evade detection, and may even switch addresses after deploying just one liquidity pool. Therefore, jpn memelord decided to continue his research, trying to find traces of human factors in the creation of liquidity pools.

He attempted to focus only on liquidity pools created by ENS users. This method proved more effective, with only 17,000 pools created by addresses with ENS, a number far lower than the total number of pools, and likely effectively excluding most pools created by bots.

Coincidentally, jpn memelord believes this filtering process may also reveal some influencers who repeatedly engage in "pulling the plug" operations on Base tokens. However, this method still needs improvement, as the existing filtering may miss some real liquidity pools created by anonymous deployers while including scams or "pulling the plug" projects from certain vanity influencers.

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jpn memelord began to focus on liquidity pools with multiple liquidity addition events. "Pulling the plug" projects typically only perform one liquidity injection and removal operation, while productive liquidity pools will have other liquidity providers and multiple injections of liquidity.

Only about 7,800 v2 liquidity pools have undergone multiple liquidity additions, and when the filtering condition is raised to more than 2 liquidity additions, this number is halved again, leaving only about 3,500, which are the productive liquidity pools, not just "pulling the plug" projects.

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These valuable liquidity pools account for only 1.2%-0.5% of the initial total, meaning that after considering junk projects and scams, the actual data is exaggerated by about 99%, and this number is very close to the figure Uniswap provided at the beginning of the article.

jpn memelord believes that this behavior is essentially not Uniswap's fault, as it is a permissionless protocol where anyone can create liquidity pools for any asset, which is one of its design features. However, promoting metrics artificially inflated by worthless junk projects is something Uniswap has the ability to control.

Uniswap should filter its metrics; whether it's 8,000 liquidity pools or 3,500, these pools that genuinely generate some value are still impressive data. This filtering should also apply to trading volume, as a significant portion of the trading volume is actually generated by these "pulling the plug" projects cycling between the same 5 ETH.

"Created liquidity pools" is an activity metric that can easily be manipulated by bots for a permissionless protocol with an operational cost of just a few cents. This type of metric should be carefully filtered and not simply promoted based on surface data. Those liquidity pools that go beyond the "pulling the plug" routine and truly have interaction are what deserve attention.

Rug Pulls Rampant, Uniswap's Real Trading Volume Lags Behind Aerodrome

jpn memelord further explored whether these easily executed "pulling the plug" projects significantly contribute to trading volume.

At peak times, liquidity pools with only one liquidity addition event contributed about $300 million in trading volume per month, a relatively small proportion. As of now, this figure for September is only about $30 million, which actually verifies that approximately 99% of the liquidity pools created on Base by Uniswap are of low value.

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jpn memelord hopes to gain a clearer understanding of the true sources of this trading volume. In previous analyses, he mentioned that although these low-cost "pulling the plug" projects do contribute to trading volume, he suspects that more complex operators frequently change addresses when launching new scams to evade detection.

So, how can these operators be distinguished?

jpn memelord turned to AerodromeFi and its whitelisting process, attempting to use it as a potential method to filter Uniswap's trading volume on Base. On Aerodrome, if a liquidity pool wants to receive incentives, its tokens must pass the whitelisting review by the Aerodrome team, which helps distinguish the trading volume of quality projects from others.

His analysis shows that a significant portion of Uniswap's trading volume on Base actually comes from assets that are not whitelisted. Since the explosion of projects on Base in March this year, this proportion has approached 50%.

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Does Uniswap have an advantage over certain assets? What is driving this trading volume?

jpn memelord extracted the trading volume data of individual liquidity pools for non-whitelisted assets and found a large number of meme coins. Some meme coins he had never heard of had trading volumes of $10 million just in September.

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Upon reviewing these liquidity pools one by one, he found that most of the tokens were in a "pulling the plug" situation. In fact, among the top 150 liquidity pools sorted by monthly trading volume, jpn memelord found only 4 that were not "pulling the plug."

The performance of these liquidity pools is roughly the same: within hours of going live, trading volume reaches millions of dollars, then is quickly "pulled the plug," with tokens sold off to zero, and deployers profiting over 90 ETH.

This operation repeats over and over.

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So, how can these scams be identified in trading volume data? A systematic approach is needed to recognize them.

When tokens are so thoroughly "pulled the plug," trading will stop. Therefore, a filter can be set to check how long it has been since the last transaction of the token, which can help identify these scams.

jpn memelord's approach is to apply a filter to exclude tokens that have had transactions in the last N days, allowing for the distinction between "active" tokens and "inactive" tokens. Combined with the whitelisting filter already used, Uniswap's trading volume can be divided into four categories:

  • Active tokens within the whitelist: including quality tokens, stablecoins, and established meme coins.
  • Inactive tokens within the whitelist: referring to tokens that have significantly declined in recent months.
  • Active tokens outside the whitelist: including new tokens, both scam projects and real projects.
  • Inactive tokens outside the whitelist: typically severe "pulling the plug" projects or assets gradually forgotten by the market.

So, what does Uniswap's trading volume look like?

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First, these "pulling the plug" tokens had a trading volume of $1.85 billion in September, and in the past two days (accounting for about 10% of the month) there have been no transactions, meaning these tokens constitute 57% of Uniswap's total trading volume on Base this month.

The situation is even more severe. Some of these "active" tokens were just "pulled the plug" in the last 48 hours and are categorized in the pink section of the chart (non-whitelisted active). If the trading volume from "pulling the plug" remains relatively unchanged, it is foreseeable that another 6% of the monthly trading volume will also be scam projects.

This portion accounts for 12% of the total trading volume this month, while last month this portion accounted for about 6% of the total trading volume. Therefore, it is very likely that by the end of this month, after the activity filter identifies the recent "pulling the plug" projects, this 6% will join the 57%. In other words, about 63% of Uniswap's trading volume on Base comes from "pulling the plug" projects.

This month's whitelisted assets (quality token pairs, stablecoins, mature meme coins) account for only 30% of Uniswap's trading volume. The remaining approximately 7% of monthly trading volume is the "advantage" that Uniswap possesses.

jpn memelord provided two sets of charts, one showing the unfiltered Uniswap trading volume (commonly used for comparing these trading volume data), and the other removing the "pulling the plug" trades from Uniswap's data. The dominance of Aerodrome's trading volume is far stronger than people imagine.

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Interestingly, even after filtering out scam trades, the overall trading volume on Base is still steadily increasing, while Aerodrome's market share is gradually expanding. By observing the percentage increase in trading volume, one can also see the significant increment brought by Aerodrome's launch of Slipstream (CL) at the end of April.

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Delving into Rug Details, A Few Lines of Code "Pulling the Wool Over"

As market enthusiasm rises, jpn memelord continues to monitor the continuous "pulling the plug" operations on Base. This time, he discovered that these numerous abnormal operations might originate from a single individual or group.

Their operations began with deploying a token, strangely using a non-standard 9 decimal places and adding most of the liquidity to the Uniswap v2 pool. Subsequently, they opened trading, relinquished ownership of the contract, and destroyed the liquidity tokens, making the entire process appear to be a compliant setup.

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The wallet holding the most tokens on Basescan is the liquidity provider, and everything looks safe, attracting many people to flock in.

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The "security check" also seems to have passed verification (LP has been destroyed, contract ownership has been relinquished, no honeypots, etc.). Nevertheless, @Token_Sniffer has already flagged this scammer.

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Subsequently, they manipulated trading volume through bots to lure unsuspecting users into the trap.

ETH was semi-randomly distributed to dozens of wallets controlled by the deployer, which simulated natural market demand and pushed up chart trends through buying and selling operations.

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Everything seemed normal until the deployer received a token transfer far exceeding the "circulating supply" displayed amount, and all ETH in the pool was withdrawn to the deployer's account, leaving this seemingly safe meme coin abandoned.

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Where did these tokens come from?

The contract contains a constructor that deliberately uses integer underflow to allocate the maximum uint256 amount of balance to a "hidden" wallet controlled by the deployer. Therefore, these tokens do not appear in the "max supply" or the holder list on Basescan.

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It is these few lines of code that create such a chart trend.

These ETH are recycled for the next operation, and the entire "performance" will restart with a new token code, usually choosing a name that is currently popular on Ethereum or Solana.

Has Base Become a "Death Zone"?

jpn memelord continues to follow up on the trading volume analysis of Uniswap on Base, discovering an active continuous "pulling the plug" operator. In short, this person or group now accounts for 65%-80% of Uniswap's trading volume on Base daily.

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The orange section represents the trading volume of liquidity pools that have had no transactions in the past two days (i.e., "pulling the plug" tokens/pools). In October alone, this trading volume approached $5 billion, reaching the highest level since April.

Worse yet, the proportion of this trading volume to the total has increased in recent weeks, peaking at 82% of total trading volume on October 12. Most of the remaining trading volume comes from token liquidity pools on the Aerodrome whitelist (including WETH, cbBTC, and DEGEN, etc.).

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This means that Base has become a minefield, and anyone trying to find new tokens there has a high probability of encountering these "pulling the plug" projects.

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Disclaimer: The content of this article solely reflects the author's opinion and does not represent the platform in any capacity. This article is not intended to serve as a reference for making investment decisions.

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