Chip-Stock Perps: $52M Liquidated While Wall Street Shut

Ten minutes. That is how long it took, per CoinGlass data cited by CoinDesk on October 18, 2026, for a pile of leveraged bets on SanDisk, SK Hynix, Micron and a triple-leveraged chip fund to disappear.

The strange part is not the size. It is that nothing was open to tell traders what those shares were really worth.

Educational content, not investment advice. Perpetual futures on stocks are high-risk products and may be restricted where you live. Figures are from public reporting dated October 18, 2026.

Contents

• What happened on Saturday, October 17, 2026?
• Why can stock perps move when the stock market is shut?
• Who got hit hardest?
• What does a venue do when there is no real price?
• What will Monday show?
• Weekend Habits That Burn Accounts

What happened on Saturday, October 17, 2026?

Between 21:22 and 21:32 UTC on Saturday, October 17, 2026, about $51.6 million of leveraged perpetual-futures positions tied to chip stocks and semiconductor funds were liquidated while US markets were closed, according to CoinGlass data cited by CoinDesk.

When I checked the sequence in the CoinDesk report, I found that the selling started on Binance. Tread.fi CEO David Jeong, who reviewed the order flow, put the first large SanDisk and Micron sell orders at 21:21:59 UTC. Less than a second later, orders reached Hyperliquid, where Trade XYZ lists stock-tracking contracts.

Roughly 10 addresses opened bets against six chip-linked contracts within 1.8 seconds. That looks coordinated, though the report does not say who they were.

Why can stock perps move when the stock market is shut?

A stock perpetual future on a crypto exchange keeps trading 24 hours a day, so on a weekend its price is set only by the traders on that exchange, with no live Nasdaq or NYSE quote to pull it back.

That is the whole mechanism. During US hours, arbitrageurs buy the cheaper of the share and the perp and sell the dearer one, which keeps the two close. On Saturday that anchor is missing. Our earlier piece on why a stock perp moves when the market is closed covers the basic pricing; this event shows the ugly version.

Leverage does the rest. A position is closed automatically once its losses exceed its deposit. That forced selling pushes the price lower, which trips the next batch of liquidations. Traders call it a cascade. Here it ran for ten minutes.

Who got hit hardest?

Leveraged long holders of the SOXL, SanDisk and SK Hynix perps took the largest losses, because about $38 million of the $51.6 million was long-side, per the CoinGlass figures reported on October 18, 2026.

By subtraction, shorts lost about $13.6 million. That is our own arithmetic, so treat it as approximate. Memory-chip shares had already had a weak week on worries about new competition from Chinese chipmaker CXMT, which is why so many traders were leaning long into a dip.

Speed mattered too. In the first minute, Binance handled about $21.9 million of SanDisk trading against $3.1 million on Trade XYZ. The deeper book took the first hit.

What does a venue do when there is no real price?

Trade XYZ’s rules, as described by CoinDesk, allow the platform to set its own reference prices for stock-tracking contracts until outside stock quotes resume.

In plain terms, the number that liquidates you on Saturday is chosen by the venue, not by the Nasdaq. Check each exchange’s contract specification for how its mark price is built when the underlying market is closed. They differ, and I noticed that the report names no single standard rule across the venues involved.

What will Monday show?

When US markets reopen on Monday, October 19, 2026, real share quotes will show how far Saturday’s perp prices drifted from where the stocks actually trade, according to CoinDesk’s reporting.

If the gap is large, the perp may snap back, and anyone liquidated near the low gets no refund. If the gap is small, the weekend price was roughly right and the cascade was just a fast repricing. Either way, check the Monday open before drawing conclusions.

Weekend Habits That Burn Accounts

Here’s where people get tripped up. They size a weekend position as if the weekday book still applied.

Another habit is reading a stock perp’s price as ‘the stock price.’ On Saturday it is a bet between traders. Nothing more.

Tips

• Cut leverage on stock perps before Friday’s US close, or flatten them.
• Read the exchange’s mark-price rule for closed-market hours before you open the position.
• Compare your liquidation price with the biggest single-hour move you have seen on that contract.

Warnings

• Stock perps are unavailable or restricted in several countries. Check your local rules.
• A stop order does not guarantee a fill in a cascade.
• This is not investment advice.

FAQ

How much was liquidated in the October 17, 2026 chip-stock perp event?

About $51.6 million of chip-stock and semiconductor-fund perpetual futures were liquidated between 21:22 and 21:32 UTC on October 17, 2026, with about $38 million on the long side, per CoinGlass data cited by CoinDesk.

Which exchange did the selling start on?

According to a review by Tread.fi CEO David Jeong cited by CoinDesk, the first large SanDisk and Micron sell orders hit Binance at 21:21:59 UTC. Orders reached Hyperliquid, where Trade XYZ lists stock-tracking contracts, less than a second later.

Can a stock perp liquidate me when the stock market is closed?

Yes. Stock perpetuals trade around the clock on crypto exchanges, and positions are closed automatically when losses exceed the deposit, whether or not the underlying market is open. Lower leverage gives a wider buffer.

Sources

• CoinDesk: Chip-stock bets lost $52 million in 10 minutes with Wall Street shut (October 18, 2026)
• CoinGlass: liquidation data

Fact-checked against CoinDesk reporting dated October 18, 2026, which cites CoinGlass and Tread.fi. The shorts figure is our own subtraction. Not investment advice.