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Sakura Internet (3778.T) — chart, structure and Closelook read

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Company snapshot — Sakura Internet

3778.T in five paragraphs: what it makes and sells, where it sits in the Closelook stack, who it is priced against, why we track it, what we watch. Research diary, not advice.

What it does
Sakura Internet is a Japanese company that runs data centres and sells hosting, dedicated servers and cloud computing to businesses. It has more recently built out GPU cloud capacity for AI workloads, work that has drawn support from government funding for domestic computing infrastructure. It is listed in Tokyo.
Where it sits in the stack
Sakura Internet has no seat in our Rubin index; it sits in the diary's Compute Operators sleeve within the Agentic Ecosystem, the group covering firms that rent out GPU and cloud capacity rather than design or make chips. Inside that sleeve it is a capacity supplier, the kind of business that model builders and enterprises buy or rent compute from rather than a maker of the underlying silicon.
Who it is priced against
Closelook's peer group places it with Nebius, CoreWeave, Kingsoft Cloud and IREN, all grouped under Compute Operators for their role renting out GPU capacity; the wider market also compares such operators with the hyperscale cloud arms of Amazon and Google.
Why Closelook tracks it
It holds no seat in our indices and has not appeared in the diary's editions or quotes so far. It carries a Closelook score, but only one module has been scored to date, so the fuller score is still being built.
What the diary watches
Whether Sakura Internet's GPU cloud capacity keeps expanding and whether continued government support for domestic compute changes how the diary reads its Compute Operators seat.

Sakura Internet (3778.T) trades on the TSE exchange in Japan.

Written from the company’s public profile and Closelook’s own readings, 2026-09-17. Descriptive, refreshed with the registry; corrections welcome via the imprint. closelook.net is an investment research diary — market structure, index membership and scores are our own readings, not investment advice. Related: index compare · sector dispersion · scanner.

Signals for this name

Every Closelook reading that exists for 3778.T, from the same nightly bakes the boards use. Research diary readings, not advice.

Who it is priced against Agentic Ecosystem · Compute Operators · 4 names with week and year-to-date

Peer group

Agentic Ecosystem · Compute Operators

Compared against 3778.T on the nightly bakes; the Peers tab ranks the cohort on the Closelook scores where it exists.

Versus its index Agentic Ecosystem Index — the name, its sleeve and the index over day, week and month

Versus its index

The name against its Closelook index and its own sleeve — equal-weight, nightly closes.

Agentic Ecosystem Index · as of 2026-09-17

DayWeekMonth3 months
3778.T+5.0%−4.9%−5.6%+23.0%
Compute Operators+2.6%−1.1%−6.8%—
Agentic Ecosystem Index+2.5%+7.0%+3.9%—

Against the index: 11.9 pts behind on the week, 9.5 pts behind on the month; against its Compute Operators sleeve 1.2 pts ahead on the month.

Returns from the index workers’ nightly closes; equal-weight sleeves. A relative reading from the research diary, not advice.

Weather around the name 3 macro readings: Money Temperature, Factor regime, Sovereign pressure

The weather around this name

Macro readings that apply by membership — the regime, the factor tape, the sector cell, the funding backdrop.

  • Money Temperature Composite 55/100 · S&P 500 fund at 58, above its 50- and 200-day averagesEight instruments scored on position, momentum, volume, volatility and fragility — the regime every name trades inside. Temperature lab → 2026-09-17
  • Factor regime Momentum leading — risk appetite buildingMomentum against low volatility (SPMO / SPLV): above its 50-day trend, 94th percentile of the window, +2.7% over 20 sessions. Factor regime → 2026-09-17
  • Sovereign pressure Index 0.00 · down 0.41 over 21 sessionsG7 long-end yields, 10s30s and the slope — the funding weather for every balance sheet on this site. Sovereign pressure → 2026-09-17

FAQ · from the current data · as of 2026-09-18

Quick answers

What is Sakura Internet (3778.T)?

Sakura Internet trades as 3778.T on the TSE exchange (Japan) in the Closelook research universe, as of the registry build of 2026-09-18.

Is 3778.T in a Closelook index?

Not currently — Sakura Internet is tracked in the Closelook research universe but is not a constituent of a Closelook functional index as of 2026-09-18.

Where does 3778.T trade against its moving averages?

Up 5% at the close: Above both trend lines; one of the day's strongest moves. As of 2026-09-17 — a technical state from the nightly Closelook bake, not advice. The Technical tab carries the full row.

How is 3778.T doing against its Closelook index?

Over the past month Sakura Internet is −5.6% against +3.9% for the Agentic Ecosystem Index — 9.5 points behind its index, as of 2026-09-17. Its Compute Operators sleeve is −6.8% over the same month. The “Versus its index” table on this page carries the day, the week and the month for the name, its sleeve and the index.

What does Sakura Internet do?

Sakura Internet is a Japanese company that runs data centres and sells hosting, dedicated servers and cloud computing to businesses. It has more recently built out GPU cloud capacity for AI workloads, work that has drawn support from government funding for domestic computing infrastructure. It is listed in Tokyo. Closelook's peer group places it with Nebius, CoreWeave, Kingsoft Cloud and IREN, all grouped under Compute Operators for their role renting out GPU capacity; the wider market also compares such operators with the hyperscale cloud arms of Amazon and Google.

Where does Sakura Internet sit in the AI build-out?

Sakura Internet has no seat in our Rubin index; it sits in the diary's Compute Operators sleeve within the Agentic Ecosystem, the group covering firms that rent out GPU and cloud capacity rather than design or make chips. Inside that sleeve it is a capacity supplier, the kind of business that model builders and enterprises buy or rent compute from rather than a maker of the underlying silicon. It holds no seat in our indices and has not appeared in the diary's editions or quotes so far. It carries a Closelook score, but only one module has been scored to date, so the fuller score is still being built.

What does this page show?

A live price chart with SMA overlays and drawing tools for 3778.T, performance metrics, index-membership context and the Closelook structure read — an investment research diary view, not investment advice.

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