Where the basket ranks among 30 US sectors right now, how broad the move is, and which names make up the basket.
Showing the after hours, on the 4pm close basis. Updates every few minutes during the session, 4pm close after hours.
Ranked next to it right now: Robotics -1.04% #28 · Quantum -1.06% #29
9 names, one share class per company. The roster is versioned, so every rank ever published for this basket points at a known list of names.
| •••• | -6.54% |
| •••• | -4.38% |
| •••• | -2.22% |
The names behind the moves are for members.
Memory chips and the drives that hold what AI models read and write: DRAM, high bandwidth memory, NAND flash and enterprise storage. The group trades on memory pricing cycles, which turn faster than the rest of the chip world, so it often leads or lags the broader semiconductor tape by weeks.
Nine names split between chips and drives. When both halves are green the memory cycle is doing the work; when the drive makers move and the chip makers sit still, it is a product story, not the cycle. The basket swings harder than the rest of the chip tape, so its rank changes faster than most.
Every basket is scored on its average move and its breadth against the other 29, every few minutes during the session and again at the 4pm close. The rank is the basket’s place in that list. It comes from the tape itself, not from headlines, so rotation shows up here before it is written about.
9 names, one share class per company: SKHY (SK hynix), MU (Micron Technology), WDC (Western Digital), STX (Seagate Technology Holdings), SNDK (Sandisk), RMBS (Rambus), SIMO (Silicon Motion Technology Corpo), MRAM (Everspin Technologies), NTAP (NetApp). The roster is versioned, so every rank the board publishes for the basket points at a known list of names.
Right now the basket is down 2.15% on the 4pm close, ranked 30 of 30 US sector baskets, with 1 of 9 names green. The numbers on this page update every few minutes during the session.
Every basket is scored on its average move and its breadth against the other 29, every few minutes during the session and again at the 4pm close. The rank is the basket’s place in that list. It comes from the tape itself, not from headlines, so rotation shows up here before it is written about.
This page shows the three biggest moves inside the basket today without naming the stocks. Members see every name in rank order, which one is leading and which has not moved, and the alerts when a name crosses a level on real volume.