GM. This is Dumb Money, the only financial newsletter with a 100% loss rate.
Halloween came early this year. Or late. Depends on whether you count the DeFi vault that got drained or the Coinbase earnings call that ended with a margin call.
Either way, $169K in combined losses across three stories, three different asset classes, and three very quiet Reddit accounts.
Here's what we've got today:
🏆 Troves vault drained. 1.8 BTC gone. The contract was outdated.
📉 Coinbase beat earnings. Stock still crashed 11%. Margin call anyway.
⚡ Pinterest calls before earnings. Google AI strikes again.
📊 The data on today's carnage. It is worse than you think.
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| TODAY'S DAMAGE REPORT 📊 | |||||||||
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A federal board just voted unanimously to lend roughly $3 billion to one American mining company.
That loan is bigger than the company's entire market cap. Not half of it. Bigger than the whole thing.
One of those two valuations is wrong, and the papers get signed in the second half of this year.
LOSS OF THE DAY 🏆
Every day we crown one person who made the worst financial decision on the internet.
Today's winner didn't get hacked. His vault did. The result is the same: $140,400, gone.
Here's the setup. A guy found Troves, a BTCFi protocol on Starknet that offered yield on wrapped Bitcoin. The vault had been running for months. The smart contracts had been audited.
One problem: the old rebalancing contract still had permissions.
When Troves upgraded its rebalancing logic earlier this year, they deployed a new contract but never revoked access from the old one. It sat there like a spare key under the doormat that nobody remembered to throw away.
On October 31, someone found that key.
Our guy had deposited 1.8 BTC into the xWBTC/WBTC vault. At $78,000 per coin, that was $140,400 sitting behind a door that was never locked.
The contract was replaced. The permissions weren't. That's the whole story.
The attacker drained 8.6 BTC from the vault in a single transaction. Total damage across all depositors: $670,800. The team offered a 1 WBTC bounty for the return of funds.
Translation: they offered the attacker $78,000 to give back $670,800. The attacker has not responded.
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VAULT BALANCE -$140,400.00 ▼ 1.8 BTC DRAINED - 100% 1D 1W 1M 3M ALL | ||||||||||||||||||||||||
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"My BTC yield vault just went to zero on Halloween. Not a costume." Deposited 1.8 BTC into Troves xWBTC vault on Starknet three months ago. Yield was solid. Protocol had been running since spring. Felt safe. Woke up to a $0 balance. Attacker used an old rebalancing contract that still had vault permissions. The new contract was fine. The old one was the problem. Team offered 1 WBTC bounty. I lost 1.8. Cool.
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| What's a rebalancing contract? In DeFi, vaults use automated contracts to shift assets between strategies. When a protocol upgrades to a new contract, the old one should lose all access. Troves replaced the contract but never revoked its permissions - leaving a backdoor that anyone with the right transaction could walk through. |
The scariest part of DeFi isn't the volatility. It's the infrastructure.
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TODAY'S CASUALTIES 💀
Not everybody can be Loss of the Day. But these two gave it a real shot.
Let's run through the tape.
Casualty #1: The Earnings Beat That Wasn't Enough
There's a special kind of pain reserved for people who are right about a company and still lose money.
u/stack_sats_daily had a thesis on Coinbase. Q3 was going to be strong. Prediction markets were booming. Costs were down. He was right.
Coinbase reported EPS of $2.51, beating estimates. Revenue: $1.22 billion. The stock popped in after-hours.
Then the Binance hack happened. On October 29, hackers drained $6.3 billion from the world's largest crypto exchange. Bitcoin fell below $77,000. Every crypto stock got dragged down.
Coinbase opened down 11% on October 30. Our guy was holding 800 shares on 4x portfolio margin. His $149,136 position started bleeding before he finished his morning coffee.
The earnings were right. The hack was wrong. The margin call didn't care about the difference.
Broker force-liquidated at $166.80. Total loss: $15,700 on a $37,284 equity position.
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DAY P&L -$15,700.00 ▼ MARGIN CALL - FORCE SOLD 1H 4H 1D 1W ALL | ||||||||||||||||||||||||
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"Coinbase beat earnings. My portfolio didn't." Had 800 COIN on 4x margin. EPS beat. Revenue beat. I was celebrating at 4:15 PM. By 9:31 AM the next morning my broker had sold everything. Top comment: "Your thesis was correct. Your risk management was not. Those are different things."
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| What's portfolio margin? Regular margin lets you borrow up to 2x your equity. Portfolio margin can reach 4-6x by measuring risk across all holdings. More buying power, but an 11% drop can breach maintenance requirements and trigger an automatic liquidation before you even open your brokerage app. |
Being correct about the company does not make you correct about the sector. Especially when the sector's largest exchange just got robbed.
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Casualty #2: The "Pinterest Is Different" Guy
u/pin_it_to_win_it had a theory. Reddit crashed 29% because Google AI was eating its search traffic. But Pinterest was visual. Pinterest was different.
He bought 200 PINS $23 weekly calls at $0.65 each. Total cost: $13,000.
Pinterest reported Q3 earnings on October 29. GAAP EPS: $0.04, missing estimates by $0.05. Revenue hit $1.17 billion but fell short of consensus.
The stock dropped 8% to $19.37. His $23 calls went to $0.01.
Pinterest was not different.
Loss: $12,800. A 98.5% wipe on a thesis that was literally "this one's immune."
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POSITION VALUE -$12,800.00 ▼ $13,000 → $200 (-98.5%) 1D 1W 1M 3M ALL | ||||||||||||||||||||||||
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Nothing is immune. That's kind of the whole thing about markets.
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TODAY BY THE NUMBERS 📊
We track the data because the data is funnier than anything we could make up.
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The correlation between correct thesis and portfolio survival remains at zero.
Every loss this week involved someone who had the right idea and the wrong execution. The vault was real. The earnings were good. The thesis was sound. None of it mattered.
See you tomorrow. The numbers will be different. The behavior won't be.
