October Trump tariff trader loses $100M erasing all 10/10 gains after price dip

A single wallet roundtripped $142.5 million in unrealized profit on Hyperliquid, peaking on Jan. 13 before collapsing to a negative $8.76 million loss as of Jan. 29.

Meanwhile, all of this was visible in real time through public dashboards. The trader built a reputation during October 2025’s historic liquidation wave and now operates under a microscope, where every entry, exit, and margin adjustment is broadcast to spectators, copycats, and adversaries.

The $151 million swing represents both the promise and peril of transparent leverage: visibility improves market monitoring, but it also turns big positions into coordination targets and makes the distance between triumph and disaster measurable to the tick.

The dynamic is new because the scale is new. Hyperliquid processed $165.9 billion in monthly perpetual volume and carries an open interest of $8.4 billion, according to DefiLlama.

That’s roughly 18.5% of all on-chain perp volume for January, and 44% of open interest.

When a venue reaches this size while maintaining public visibility, the “public tape” ceases to be a curiosity and begins to systematically shape liquidation dynamics. The whale’s roundtrip wasn’t a private failure, it played out as a public spectacle, with dashboards tracking the collapse in real time.

Venue mechanics under stress

The Oct. 10 liquidation wave provides the stress test. More than $19 billion was liquidated across leveraged positions in roughly 24 hours, with Bitcoin touching a low of around $104,782.

CoinShares explained the mechanics of the cascade: market makers pulled liquidity, spreads widened, and forced selling accelerated. Futures open interest collapsed from roughly $175 billion to $125 billion in less than a day.

CoinShares noted that Hyperliquid activated autodeleveraging during the crash.

A paper by Gauntlet CEO Tarun Chitra on autodeleveraging estimated that Hyperliquid autodeleveraged between $660 million in simulated and $2.1 billion in realized profit-and-loss for winning traders during the Oct. 10 cascade.

That quantifies the “venue mechanics matter” argument: liquidations aren’t just price events, they’re microstructure events.

The trader who survived October with profits intact just learned the same lesson in reverse, as his unrealized gains on a transparent platform become targets. Without disciplined exits, winners become losers when the crowd sees the position.

What transparency fixes and breaks

Public position data enables earlier risk detection.

Hyperliquid positions can be monitored externally via platforms such as CoinGlass, which document an endpoint that returns wallet position data, including size, margin balance, and unrealized profit and loss.

In theory, this makes leverage buildups harder to hide and enables faster de-risking before cascades.

Hyper Foundation argues that transparency can improve execution by attracting competing liquidity providers. If whale entries and exits are visible, market makers can position against predictable flow, tightening spreads.

Yet, the trader’s $151 million reversal suggests a different lesson: visibility also means every moment you don’t take profit is broadcast to everyone who might benefit from forcing you out.

Copy-trading turns whale flow into crowd flow. Hyperliquid “Vaults” are native primitives in which strategy managers run positions and receive a profit share, positioning vaults as a means of sharing strategies with a community.

This infrastructure lowers friction for spectators to synchronize with visible traders, amplifying reflexivity. When a large wallet’s unrealized P&L peaks at $142.5 million and then reverses, the copycats face the same decision: exit early and lock gains, or ride the position hoping the whale knows something they don’t.

The synchronization works both ways, up and down.

Liquidation hunting becomes crowd-enabled. Hyperliquid’s liquidation documentation explains the mechanics of forced closure and backstop liquidation via a vault if the book can’t close positions fast enough.

There’s an established narrative that transparency enables “crowd-led whale hunts,” coordinated attempts to push prices into liquidation bands and profit from the forced closures.

Whether the trader’s reversal from +$142.5 million to -$8.76 million involved active hunting or just market conditions is unknowable, but the visibility made the position a natural focal point for adversarial flows.

Reflexive squeezes get easier when positions are public. If liquidation or stop bands are inferable or observable, adversaries can coordinate order flow to test them. The “public tape” becomes a “public target list.”

This doesn’t require conspiracy, as it emerges from rational actors observing the same information and converging on the same trade. The whale with massive unrealized gains becomes the whale hunt, and the unrealized gains become unrealized losses when everyone knows you haven’t closed.

Three forward paths

Hyperliquid becomes the default public tape in the base case. Scale, transparency, and dashboards create faster crowd feedback loops.

Open interest continues to focus on Hyperliquid, trackers, and copy vaults, with growth and “whale PnL” becoming recurring narrative drivers. The trader’s roundtrip becomes a cautionary tale that reinforces the lesson: take profits when the world is watching.

The alternative is a dark-venue response in which transparency triggers privacy migration. Large traders fragment exposures across venues or structures to avoid becoming targets. Public “whale hunts” correlate with whales shifting to less-transparent execution venues or more obfuscated account structures.

The optimistic scenario is that transparency forces better risk design. Visible leverage makes tail risk harder to hide, prompting venues to compete on insurance, autodeleveraging design, liquidation tooling, and risk limits.

This path treats transparency as a forcing function, with traders learning to take profits more quickly when visibility is high and venues developing better mechanisms to prevent cascades.

The stakes

The October liquidation wave demonstrated that venue mechanics define outcomes under stress.The whale that rode $142.5 million in unrealized profit back down to an $8.76 million loss operates in a regime where position visibility creates feedback loops that can accelerate both gains and losses.

Transparency didn’t prevent the roundtrip, and made every tick observable.

Hyperliquid’s growth converted on-chain perps from an alternative execution venue into the reference tape for crypto leverage. That makes transparency not just a feature but a systemic property.

Markets with public tapes behave differently from markets with private books because front-running, copycat flows, and coordinated pressure are easier to execute.

The question isn’t whether transparency is good or bad. The question is whether traders who hit nine-figure unrealized gains on a public platform can discipline themselves to exit before the tape turns against them. This trader couldn’t. The next one has the data to learn from.