Micron (MU) perpetual on Hyperliquid: margin, funding, hours and the memory peers

xyz:MU among the memory markets on Hyperliquid

Micron trades on Hyperliquid as xyz:MU, a trade.xyz market on the xyz HIP-3 dex that tracks 1 Micron Technology share (Nasdaq: MU), quoted in USD. trade.xyz describes the company as a maker of memory and storage products, including DRAM and NAND. Few traders look at MU in isolation: the same dex lists nine more live memory and storage markets, and they differ in what they reference, which exchange their oracle follows and when, and how much leverage they allow. The table compares them with build-time values.

Different clocks: US, Seoul, Tokyo and Shanghai memory stocks

MU, xyz:SNDK, xyz:WDC, xyz:SKHY and xyz:DRAM follow the US-stock schedule, with external prices 24/5, Sunday 8:05 PM to Friday 8:00 PM ET. SK hynix (xyz:SKHX) and Samsung Electronics (xyz:SMSN) follow the Korea Exchange: external pricing 9:01 AM to 3:20 PM KST and 4:05 to 8:00 PM KST, and the internal oracle 3:20-4:05 PM and 8:00 PM-9:01 AM KST. In practice the US and Korean groups take turns. During the US regular session the Korean markets run on Hyperliquid's own order book, and during most of the Seoul session MU is priced from the US overnight venue, Blue Ocean ATS (BOATS). A spread between MU and SKHX on Hyperliquid therefore compares an exchange-fed price with a book-fed one for much of the day, which is worth keeping in mind before reading the gap between them as information about either company.

Two more exchanges set the clock for the rest of the group. Kioxia (xyz:KIOXIA), a maker of NAND flash-memory and storage products, follows Tokyo, with external prices 8:20 AM to 4:30 PM JST and 5:00 PM to 11:59 PM JST, and the internal oracle 4:30 to 5:00 PM and 11:59 PM to 8:20 AM JST, weekends and Japanese exchange holidays; its JPY price is converted at a real-time USD/JPY rate (Pyth feed), so the yen moves it as well as the share. xyz:CXMT and xyz:GIGADEV follow Shanghai: external prices only 9:30 to 11:30 AM and 1:00 to 2:57 PM China time (UTC+8) on weekdays, and the internal oracle for the rest of every weekday, at weekends and on exchange holidays, so these markets are book-priced for most of each day, including all of the US session. All of the Tokyo and Shanghai memory markets are isolated-margin only at build time, so a position in any of them carries its own margin and cannot draw on the rest of the account.

SKHY is the US-hours SK hynix, at a different scale

If the point is to compare memory makers on the same clock as MU, the SK hynix market to use is xyz:SKHY, not xyz:SKHX. SKHY tracks one SK hynix ADS listed on Nasdaq (ticker SKHY), equal to one-tenth of a common share, and it trades on US-stock sessions, while SKHX tracks a full Seoul share. The two prices are therefore not directly comparable, and neither one moves one-for-one with MU.

One wide step at the weekend

MU's weekend protection is coarser than NVIDIA's ±5% on the same dex. The bound is ±10% per step with a single re-anchor per direction, so from Friday evening to Sunday evening the mark can move about +21% or −19% away from the last external price. At 10x, an isolated long is liquidated after a fall of roughly 5.26%, inside the first step. Also, a position whose liquidation price sits outside the active bounds cannot be liquidated while those bounds apply, so a liquidation level beyond the active bound waits until the bound reaches it instead of protecting the position.

Micron perps elsewhere

Lighter, Aster, edgeX and Ondo Perps each list a Micron perpetual too (table below). Ondo's contract also trades through the weekend, but from Friday evening to Sunday evening (US Eastern time; times in the venue table) its price comes from Ondo's own order book, so its weekend bands are not the Hyperliquid market's described above; the venue table lists each contract as information only.