Grayscale has formally renamed its Bitcoin miners ETF into GCPU (Grayscale AI Compute ETF), a fund now positioned on the physical infrastructure powering the growth of artificial intelligence. Launched on September 22, 2026, the vehicle still carries a clear crypto footprint: roughly half of its weighting remains allocated to firms historically tied to Bitcoin mining that are pivoting toward AI workloads.
🔑 Key takeaways
- GCPU tracks the Indxx High Performance Computing Index, formerly the Indxx Bitcoin Miners Index
- $10.61M AUM as of Sept. 10, 2026; 0.59% expense ratio; $32.15 NAV
- Top 3 holdings: CoreWeave (9.19%), Nebius Group (9.09%), DigitalOcean (8.97%)
- Approximately 50% of the weighting still covers former BTC miners transitioning to GPU compute
- Global AI capex projected to exceed $1 trillion in 2026, per Goldman Sachs
From Bitcoin mining to AI compute: the new GCPU thesis
The launch of GCPU marks a paradigm shift at Grayscale. The vehicle, previously trading under the MNRS ticker (Grayscale Bitcoin Miners ETF), has pivoted from a purely crypto index toward a basket of global companies operating in high-performance computing, AI cloud and accelerated compute infrastructure.
This transition reflects a structural mutation of the industry: many Bitcoin miners are looking to monetize their power capacity and industrial real estate by hosting GPUs dedicated to AI training and inference. GCPU gives investors synthetic exposure to this dual trend, without holding cryptocurrencies or derivatives directly.
Fund structure and index methodology
Two compute growth lanes
According to Grayscale, the fund captures two distinct segments of the AI value chain: (1) infrastructure built from the ground up for AI workloads, including pure-play GPU cloud operators such as CoreWeave or Nebius; (2) existing facilities being repurposed — powered sites, land and grid-connected buildings — migrating from Bitcoin mining to AI hosting, exemplified by HUT 8, IREN, Core Scientific and Applied Digital.
“Grayscale has spent more than a decade giving investors access to rare, transformational technologies like digital assets, and we believe compute belongs in that same category.”
Steve Vanourny, Head of Indices at Grayscale
Technical fund specifications
The underlying index, the Indxx High Performance Computing Index (BBG: IBMIIN), follows a rules-based methodology and is rebalanced quarterly. The fund lists on NYSE Arca, CUSIP 38963H206, ISIN US38963H2067, and distributes semi-annually — a payment of $0.162885 was made on January 7, 2026, with an ex-date of December 31, 2025. The fund is classified as “non-diversified” under the Investment Company Act of 1940, allowing a higher concentration in a smaller number of issuers.
Top 10 holdings: the miners’ pivot
As of September 10, 2026, GCPU’s portfolio blends AI cloud pure players with operators historically tied to Bitcoin mining. The table below details the ten largest positions:
| Holding | Weight | Market Value ($) | Profile |
|---|---|---|---|
| CoreWeave Inc | 9.19% | 974,782 | Native GPU cloud |
| Nebius Group NV | 9.09% | 964,749 | Native GPU cloud |
| DigitalOcean Holdings | 8.97% | 951,425 | AI cloud |
| HUT 8 Corp | 7.68% | 814,470 | Former BTC miner |
| IREN Ltd | 7.04% | 746,802 | Former BTC miner |
| Hewlett Packard Enterprise | 6.58% | 697,650 | AI servers |
| SBI Holdings Inc | 5.05% | 535,756 | Infrastructure |
| Applied Digital Corp | 4.53% | 480,870 | Former BTC miner |
| Core Scientific Inc | 4.48% | 475,306 | Former BTC miner |
| Terawulf Inc | 4.34% | 460,510 | Former BTC miner |
Nearly 33% of the portfolio is exposed to former Bitcoin miners (HUT 8, IREN, Applied Digital, Core Scientific, Terawulf), illustrating the crypto DNA of the fund despite its new name.
Risk and performance metrics
As of September 10, 2026, GCPU shows an inception-to-date return of 5.81% (fund launched January 30, 2025). YTD performance stands at 0.61%, one-year at 4.46%, six-month at 0.07%, three-month at 0.62%. Per ETF Database data (October 9, 2026), the price is $31.69, with $11.1M in AUM, a 52-week high of $55.85 and a 52-week low of $23.24.
| Metric (1Y) | Value |
|---|---|
| Beta | 0.91 |
| Alpha | 0.36 |
| Information ratio | 0.45 |
| Tracking error | 0.84% |
| Sortino ratio | 0.16 |
| Max drawdown | -1.72% |
| Correlation | 95.62 |
| R² | 91.43 |
| Down / Up capture | 83.58 / 100.08 |
Macro context: the datacentre shortage
GCPU’s launch lands in an environment of structural compute tightness. CBRE estimates that as of August 27, 2026, North American datacentres are operating at a historically low vacancy rate, with roughly six months of reserve capacity. McKinsey (August 2025) and Giga Energy (March 2026) estimate a typical two-to-five-year timeline to build new capacity. Goldman Sachs (August 7, 2026) projects that annual AI capex will exceed $1 trillion in 2026, the bulk of which is allocated to physical infrastructure.
Grayscale views AI investment as still in an early stage: it currently represents about 1% of GDP, versus 2% to 5% during prior tech build-out cycles (fiber, GSM). For the manager, the combination of explosive demand and constrained supply justifies a fund dedicated to infrastructure rather than to AI models or hyperscalers alone.
Conclusion
With GCPU, Grayscale leverages the know-how of its digital-asset franchise to attack a new theme: the real economy of compute. The fund’s hybrid structure — half pure-play AI, half former BTC miners — offers differentiated exposure to compute fundamentals, but carries elevated volatility given its non-diversified status and high sector concentration (top 3 ≈ 27%).
Two scenarios emerge for the coming quarters. Bull case: AI demand continues to outpace available capacity, former miners land hyperscale contracts, and the “pivot” sleeve becomes a structural premium. Bear case: sector rotation toward AI application models, margin compression on GPU hosting, and a meaningful performance gap versus more diversified AI ETFs such as AIQ or BOTZ. In either case, the high correlation (95.6%) to the underlying index will require disciplined allocation.
Sources
- Markets Insider — Grayscale AI Compute ETF
- GlobeNewswire — Grayscale official press release, September 22, 2026
- Grayscale — GCPU product page
- ETF Database — GCPU profile
This article is published for informational and educational purposes only. It does not constitute investment advice. Do your own research (DYOR) before making any decision.
