The optical layer of the AI buildout: datacom transceivers, the lasers and photonic components inside them, optical transport and data-center interconnect, and the fiber it all runs on. Every networking generation pushes optics deeper into the rack, so unit growth compounds even when GPU spend plateaus — the volume trade next to Memory & Storage's price trade.
Follow the theme against the wider market.
Series before each basket's creation date are a backtest of the membership as of creation; live tracking starts at creation.
| Return | 1 day | 5 days | 20 days | 60 days | MTD | YTD | 1 year |
|---|---|---|---|---|---|---|---|
| Basket | -6.5% | -24.5% | -13.6% | -17.0% | -15.1% | +80.9% | +158.6% |
| vs FW 3000 | -5.4% | -22.8% | -13.1% | -19.3% | -15.0% | +62.1% | +127.3% |
1y · 2025-10-16 – 2026-10-16 · 252 / 252 sessions
Basket total returns · Annualized using 252 trading sessions · 0% risk-free rate and downside target. As of 2026-10-16 · close.
Sharpe: average daily simple return divided by its sample standard deviation, multiplied by √252. The risk-free rate is assumed to be 0%; this is not a cash-adjusted ratio.
Sortino: average daily simple return divided by downside deviation, multiplied by √252. Downside deviation is the square root of the average squared shortfall below 0%, counting all sessions, including zeros for gains.
Historical volatility: √(252 × average squared daily log return), matching the Vol page’s realized-volatility convention. This differs from the sample standard deviation used in Sharpe.
Each period requires complete history and at least 5 sessions. MTD and YTD follow the calendar; 1y is 252 sessions. Missing data or an undefined ratio displays — with a reason. Short periods can produce unstable ratios; intraday snapshots include a partial session. History before this basket’s creation is backtested. If a new basket has no stored daily return series yet, estimates from its rounded published chart levels are marked ≈.
Current members and the reasoning behind each inclusion. Returns are for individual holdings.
| Why it’s included | Added | |||||
|---|---|---|---|---|---|---|
| CIENCiena Corporation | Optical transport systems and data-center interconnect | -6.7% | -26.0% | -4.6% | +42.3% | 2026-07-21 |
| MTSIMACOM Technology Solutions Holdings, Inc. | Photonic and RF semis: TIAs, drivers and laser components for optical modules | -3.4% | -20.5% | -4.9% | +53.1% | 2026-07-21 |
| VIAVViavi Solutions Inc. | Optical network test & measurement for the 800G/1.6T rollout | -9.3% | -26.6% | -5.6% | +87.3% | 2026-07-21 |
| LITELumentum Holdings Inc. | Datacom transceivers and the EML/VCSEL laser supply chain | -5.2% | -25.3% | -11.5% | +123.6% | 2026-07-21 |
| GLWCorning Inc | Optical fiber and connectivity for the datacenter buildout | -4.6% | -15.8% | -12.1% | +51.6% | 2026-07-21 |
| COHRCoherent, Inc. | Largest merchant supplier of datacom optical transceivers | -7.1% | -25.5% | -26.6% | +26.2% | 2026-07-21 |
| AAOIApplied Optoelectronics, Inc. | Hyperscaler transceivers — the high-beta end of the optics trade | -9.7% | -31.1% | -28.1% | +116.8% | 2026-07-21 |
Equal-weighted; monthly rebalance, buy-and-hold between rebalances; dated membership changes reset the target weights.
Tracked since 2026-07-21. Membership decisions are documented below.
Read the methodology →Basket returns include dividends. “vs FW 3000” compares the basket’s compounded growth with the benchmark’s. Green means positive; red means negative.
Split out of the combined Optics & Memory basket on its creation day, before it shipped a live series (see the Memory & Storage changelog for the mirror entry). Members and rationales carried over unchanged — COHR, LITE, CIEN, GLW, plus AAOI, MTSI and VIAV in the FW 3000. No reference pinned: no listed fund approximates the optical chain (SMH holds none of the module makers). Standing exclusions carry over: FN and CRDO (offshore-domiciled, outside the FW 3000), ALAB and MRVL (interconnect/custom-silicon stories covered in ai-leaders), IPGP (industrial lasers, wrong end market).