5 Cryptos That Crashed Hardest This Week — And Why

It's been a brutal week across the crypto market, but some tokens got hit far harder than others. While $Bitcoin and $Ethereum bled on macro pressure, a handful of altcoins suffered eye-watering collapses — led by a meme-coin platform that lost three-quarters of its value in a matter of days.

Here are the 5 cryptos that crashed hardest over the past 7 days, ranked by their losses, along with the reason behind each drop.

5 Cryptos That Crashed Hardest This Week 

1. MemeCore ($M): down 75.75%

The week's undisputed worst performer is MemeCore, which cratered a staggering 75.75% over 7 days, now trading around $0.6894 with a market cap of roughly $909M. Notably, it's actually up 16% on the day — a small dead-cat bounce after the carnage.

This was a textbook thin-liquidity implosion. MemeCore's token price fell from $3 to $0.50 in less than 30 minutes on Wednesday evening, with low trading volume and concentrated insider ownership making it vulnerable to a sudden crash. The structural red flags were there all along. Most of the supply is held by a handful of insiders, and the token carried allegations of insider-driven market price manipulation, limited trading volume, and listings on just a handful of exchanges.

The trigger remains murky, but the mechanics are clear. It's unclear what started the drop, but with minimal active bidding, it didn't take much to consume MemeCore's available market liquidity. The one silver lining: the crash cleared out most of the excess leverage, with nearly $8 million in long positions liquidated, and price has since shown early signs of stabilization around the $0.65 level.

2. Ethena ($ENA): down 63.58%

Ethena's ENA token was the second-worst performer, down a brutal 63.58% YTD and bleeding 8.20% on the day, now trading near $0.07270 with a $675.7M market cap.

ENA's problem is structural and well-flagged: token unlocks. ENA remains exposed to token unlock pressure, where a large portion of supply has already been unlocked while the remaining supply continues to vest — and these unlocks can limit price recovery by creating steady selling pressure even when the underlying project has strong adoption. The core challenge is one of demand. ENA still has to prove that protocol growth actually translates into token demand, and until that becomes clearer, it remains a token with weak near-term momentum.

It's not all bleak, though — there are genuine catalysts brewing. Ethena-backed StablecoinX completed its merger with TLGY Acquisition Corp and is set to begin trading on Nasdaq under the ticker USDE, expanding its stablecoin infrastructure business. 

3. Mantle ($MNT): down 56.08%

Mantle is next, down 56.08% over the period and trading around $0.4224 with a $1.39B market cap. It was also among the day's biggest losers. Mantle (MNT) fell 13.19% in 24 hours to around $0.43, with trading activity near $62.62 million, ranking it among the top losers of the day. -

Mantle's decline has been less about a single scandal and more about the broader risk-off rotation hammering mid-cap altcoins. As capital flees to safety and Bitcoin dominance climbs, ecosystem and Layer-2 tokens like MNT tend to suffer outsized drawdowns with little token-specific news to cushion the fall.

4. Worldcoin ($WLD): down 25.75% (7d)

Worldcoin, now trading around $0.4179 with a $1.46B market cap, fell 25.75% over 7 days. But unlike MemeCore's panic implosion, WLD's drop looks far healthier. Worldcoin's decline looks more like a cooldown after a strong multi-week run — it had rallied for five straight weeks, putting plenty of short-term holders into profit, so profit-taking was always on the cards.

That distinction matters: a pullback driven by profit-taking after a sustained rally is a very different animal from a liquidity-driven collapse. WLD is still up 1.03% on the hour, hinting at some stabilization.

5. Cosmos ($ATOM): down 21.30% (YTD)

Rounding out the list is Cosmos, trading around $1.51 with a $782.5M market cap, down 21.30% YTD and 13.70% over 7 days. Like Mantle, ATOM's weakness is largely a victim of the broader environment rather than any single headline.

As an established Layer-0 ecosystem token without a fresh catalyst, ATOM has been swept up in the same risk-off tide pulling capital out of altcoins and into Bitcoin. With sentiment firmly in "Bitcoin Season," even fundamentally solid projects like Cosmos struggle to attract buyers, leaving them to drift lower alongside the broader altcoin market.

Why are Altcoins Down?

None of these drops happened in a vacuum. The entire market has been under heavy pressure, and the macro backdrop explains why speculative altcoins fell hardest. Capital has been running toward safety rather than risk, with Bitcoin dominance climbing above 58% and the Altcoin Season Index deep in "Bitcoin Season" territory.

The drivers are familiar: a hawkish Fed, ETF outflows, and broad risk aversion. Markets are now pricing in a rate hike in 2026 after previously expecting cuts, sustained Bitcoin ETF outflows have added pressure, and capital is rotating toward AI narratives and institutional partnerships rather than memecoins and speculative tokens.