1 · Background
Memory has repriced from commodity to strategic asset over 2026. Contract DRAM prices rose ~90% quarter-on-quarter in Q1 and are forecast to keep climbing through Q2, as Samsung, SK Hynix and Micron diverted the bulk of wafer capacity to high-bandwidth memory (HBM) for AI accelerators — capacity effectively sold out for the year.[1][2] The memory names have led the tape, up 227–728% year-to-date, and carry the fattest implied vol in the group.[3] The question this screen asks is whether that implied vol is expensive — and the answer depends on the name.
2 · Implied vs. Realized
Figure 1 plots each name’s implied volatility against its 30-day realized. Points above the diagonal are realizing more than their options imply — rich to own, dangerous to sell naked; points below are pricing more than they’ve delivered. The memory cluster sits high on both axes; Micron clears the line most. Broadcom is the loudest signal (72% realized vs 47% implied after a sharp drawdown). TI and Infineon sit below the line — implied rich versus recent movement.
| Ticker | Name | Spot | ATM IV | IV %ile† | 30d HV‡ | HV / IV |
|---|---|---|---|---|---|---|
| SNDK | SanDisk | $1,965 | 112.4% | 90th | 115.0% | 1.02 |
| WDC | Western Digital | $578 | 98.6% | 99th | 100.9% | 1.02 |
| MU | Micron | $1,005 | 96.8% | 90th | 118.4% | 1.22 |
| STX | Seagate | $900 | 93.9% | 100th | 98.6% | 1.05 |
| AMAT | Applied Materials | $643 | 85.1% | 99th | 83.1% | 0.98 |
| AMD | Adv. Micro Devices | $537 | 73.2% | 98th | 80.6% | 1.10 |
| IFX | Infineon (€) | €78 | 69.0% | 91st | 64.8% | 0.94 |
| TXN | Texas Instruments | $299 | 64.4% | 99th | 55.7% | 0.87 |
| AVGO | Broadcom | $367 | 47.2% | 56th | 72.3% | 1.53 |
| NVDA | Nvidia | $197 | 37.2% | 39th | 38.5% | 1.04 |
3 · Interpretation
A sector-wide “sell the rich vol” reflex is the wrong read. Implied vol is elevated by rank almost everywhere, but the screen splits the group cleanly. Where realized sits above implied — Micron most of all, Broadcom among the majors — selling premium naked means shorting a name still moving more than its options price. That memory keeps out-realizing is structural: with DRAM/HBM sold out and contract prices reset quarterly, each supply–demand print moves the stocks in gaps, not drifts, so realized outruns a backward-looking implied. Where implied sits above realized — TI, Infineon, Applied Materials near parity — the premium is likelier there for the taking.
Live: the gap this screen is built on
The two flagship names’ ATM implied vol against realized, updating daily. Watch whether implied vol catches up to the realized movement — or the movement cools as the market digests the HBM/DRAM tightness. (The live charts plot 21-day realized; the screen above uses a 30-day window.)
References
- CNBC. AI memory is sold out, causing an unprecedented surge in prices. 10 January 2026.
- TrendForce. 1Q26–2Q26 DRAM & NAND Flash contract price projections. 2026.
- IEEE Spectrum. AI Boom Fuels DRAM Shortage and Price Surge. 2026.
- SharpeIQ. HV / IV Analytics — implied vol, 30-day realized and price performance across 3,300+ tickers. 2 July 2026.