Weekly Brief #12 | The Window That Didn’t Open — van Rossem Stays Unforked Past 6/23, ADA Hits a 5-Year Low, and the Leios Testnet Launches

📦 Archived back issue: This Weekly Brief back issue was originally published on LiveMakers.com (2026-06-27). From Issue #13 the Brief continues on SIPO.TOKYO.

The Window That Didn’t Open — van Rossem Stays Unforked Past 6/23, ADA Hits a 5-Year Low, and the Leios Testnet Launches

Published: 2026-06-27 JST · Epoch: 639 · Issue #12

Executive Summary

W25 ended with a prediction: the van Rossem mainnet hard-fork governance action had been submitted (6/17), the enactment window opened ~6/23, and “next issue should record it as done.” W26’s most important honest update is that it isn’t. As of writing, Koios measures mainnet protocol_major at 10 at epoch 639 — the chain has not forked to Protocol Version 11. The governance action remains in its voting/ratification path (submission ≠ ratification ≠ enactment, the framing this brief has held since W22), and the ~6/23 window passed without a clean mainnet fork. The build is real, but this week it slipped its clock.

The macro regime, meanwhile, hardened from W25’s “hawkish but orderly” into a broader, AI/tech-led risk-off. US equities rolled over — the Nasdaq fell ~-4.6% W-o-W into a multi-session losing streak, the S&P -2.0%, while the Dow held (+0.6%). The W25 weak-yen Nikkei melt-up reversed (-3.1%), the VIX climbed back to ~18.4 (+12.3%), gold gave back -2.9%, and oil slid further (WTI -7.1%, Brent -7.3%) as Strait-of-Hormuz transit reportedly normalized. The dollar stayed firm (DXY +0.5%, USDJPY ~161.7). The liquidity squeeze implied by Warsh’s 6/17 hawkish pivot played through risk assets — and this time it reached crypto.

Crypto fell with the tape. ADA dropped -8.1% W-o-W to ~$0.148, having printed a roughly 5-year low near $0.16 on 6/22 (a sharp +6.25% 24h bounce was underway at the W26 reference capture). BTC -5.0%, ETH -7.6%, and the long tail was worse (DOT -10.9%, ATOM -11.6%, ALGO -9.0%, FET -6.1%). The clear exception was SOL (+3.6%), tied to a 100B-transaction network milestone. ADA’s market cap fell to ~$5.5B and its rank slipped (≈#18 → ≈#21) — the weakest major in a broadly red week.

The most honest price update concerns NIGHT — and it re-diverged, modestly. After W25 recorded the three-week decoupling “faded” (NIGHT had moved in line with ADA), W26 shows a partial re-separation: NIGHT was roughly flat (-0.9% CoinGecko / -1.7% SDE) against ADA’s -8.1%. We treat this exactly as before — an attention-based, not usage-based, signal. Cross-venue dispersion persists and no City V2 usage data has been published, so this stays a watch item, not a thesis. The honest pattern across W21→W26 is a decoupling that appears, fades, and reappears with attention flows — durable proof still requires published usage.

Beneath the missed fork window, the build did advance. The public testnet for Ouroboros Leios — “Musashi Dojo” — launched 6/23, Cardano’s next-generation high-throughput consensus (targeting a large multiple of current throughput). The 2026 budget moved on-chain: of 69 proposals requesting ~331.6M ADA (NCL 350M), 11 cleared the Hydra-voting stage and entered on-chain treasury-withdrawal voting (largest: Intersect Governance 25.4M ADA; deadline ~7/23). The Constitutional Committee 2026 election is in its voting window (10 candidates for 4 seats, closing 7/23). And Midnight’s mainnet (Kūkolu) with live DUST continues. The cadence held — only the single most-anticipated item, the mainnet fork, did not land on its window.

The core of reading W26 is a price-and-build divergence sharpened by timing: a macro-led risk-off pulled crypto to multi-year lows while the build advanced on every front except the one it was supposed to finish. The posture is two-stage: short-term (1–4 weeks), watch the actual van Rossem mainnet enactment (now overdue against its own window), whether the AI/tech-led risk-off and the ADA ~5-year-low zone stabilize, and the SPO/tooling readiness that gates the fork; medium-term (2026 H2), watch whether Leios, Pyth (live since W25), and the post-fork toolchain convert into measurable DeFi/RWA usage — the same “does build become usage?” test that NIGHT’s on-again-off-again decoupling keeps underscoring.

1. Market Pulse — A Macro-Led Risk-Off, an AI/Tech Selloff, and a 5-Year ADA Low

Week-over-Week (W25 reference snapshot → W26 reference snapshot)

Reference times: W25 reference = 2026-06-20 / W26 reference = 2026-06-27. Crypto is spot at the reference time (W26 = Saturday 6/27 ~12:15-12:30 JST CoinGecko, cross-checked with SITION SDE); traditional markets are the last NY close before reference (W26 = Friday 2026-06-26 close, SITION SDE market_indicators). US 10Y at 4.37% is from a manual cross-check (TradingEconomics + Yahoo) because TNX was missing from the 6/27 SDE auto-capture. NIGHT shows cross-venue dispersion. See meta.json data_sources.

Macro Regime — From “Orderly” to “Risk-Off”

W25’s macro was “hawkish but orderly” — firm dollar, cheaper oil, low VIX, a Fed on hold. W26 is the week that order broke. The trigger was not a single event but the liquidity squeeze implied by Warsh’s 6/17 hawkish pivot, finally expressing itself as an AI/tech-led equity correction. The Nasdaq fell -4.6% W-o-W in a multi-session losing streak, the S&P -2.0%, and the VIX rebounded to 18.4 (+12.3%) — the fear that drained in W25 came back. The weak-yen Nikkei melt-up that defined W25 reversed (-3.1%), and oil slid further (WTI -7.1%, Brent -7.3%) as Hormuz transit reportedly normalized to ~70%, draining another layer of geopolitical premium. The dollar held firm (DXY +0.5%, USDJPY ~161.7, still in the intervention zone) and the US 10Y fell -8.1 bp, a flight-to-quality tell. That the Dow held (+0.6%) signals a drawdown led by tech/AI valuation unwind, not broad growth fear.

Crypto Followed Macro Down — A 5-Year ADA Low

The crypto complex that ignored macro in W25 sold off with it in W26. The risk-off hit the long tail first (DOT -10.9%, ATOM -11.6%, ALGO -9.0%) and the majors followed (BTC -5.0%, ETH -7.6%). ADA was the weakest major at -8.1%, printing a roughly 5-year low near $0.16 on 6/22 (a +6.25% 24h bounce was underway at the reference capture). Market cap fell to ~$5.5B and the rank slipped (≈#18 → ≈#21). The one clear counter-move was SOL (+3.6%), supported by a 100B-transaction network milestone — an idiosyncratic catalyst, not a complex-wide bid. AI-linked FET (-6.1%) moved with the AI equity selloff. This is the third regime in three weeks — W24’s bounce, W25’s drift, W26’s correlated sell — and a reminder that crypto can revert to being a dependent variable of macro. Cardano’s idiosyncratic catalysts (van Rossem fork, Leios, post-fork DeFi) are in §2 — but this week they did not support price.

NIGHT — The Decoupling Reappeared, Modestly

W25 recorded that the three-week decoupling had “faded.” W26 is a small swing back the other way — NIGHT was -0.9% (CoinGecko) / -1.7% (SDE), roughly flat, holding well above ADA’s -8.1%. But we do not treat this as a re-confirmed inversion. First, the gap is small for a single week; second, NIGHT’s cross-venue price stays dispersed (CoinGecko ~$0.0307, SDE ~$0.0305); third, published City V2 / on-chain usage data is still zero. The W21→W26 pattern is now clear — the decoupling appears, fades, and reappears with attention flows, and an attention-based signal has no fixed direction. Durable proof still requires published usage. NIGHT stays a watch item, not a confirmation.

2. Ecosystem Watch — The Fork Window That Slipped, the Leios Testnet That Launched

If §1 is the macro headwind, §2 is the build underneath it — and W26 missed its own prediction on the one item this brief has tracked longest.

van Rossem — Still Unforked Past 6/23

This is the week’s most important fact and an honest correction to a forecast this brief itself made. The hard fork staged through W22 (“ratification withheld on Ogmios concerns”) → W23 (“PreProd PV11 complete; mainnet go/no-go ~6/15”) → W25 (“6/15 GO; mainnet GA submitted 6/17; enactment window ~6/23; next issue should record it as done“) has not enacted on mainnet, even past the 6/23 window. As of writing (2026-06-27), Koios cli_protocol_params measures mainnet protocol_major at 10 — the chain is still on Protocol Version 10 and has not forked to PV11. The governance action remains in its voting/ratification path; enactment follows the three-body signature (CC / DReps / SPO) and final readiness of node v11.0.x, DB-Sync, Ogmios, and Kupo. The framing is unchanged — submission ≠ ratification ≠ enactment. The fork written as “days, not weeks” away has now missed its window once. This is not a technical failure but a schedule slip, and given that SPO/tooling readiness is a precondition, it can be read as cautious gating. The event the next issue should record is unchanged — a clean mainnet fork — but we will no longer state its date as fixed.

Ouroboros Leios — Public Testnet “Musashi Dojo” Launches (6/23)

In the same week the fork missed its window, Cardano’s next scaling layer advanced. The public testnet for Ouroboros Leios, “Musashi Dojo,” launched 6/23 (Intersect / Hoskinson announcement; a staged stress test). Leios is a next-generation consensus targeting a large multiple of current throughput (the commonly cited multiples are a target, not a guarantee) and is a core piece of the roadmap that runs through the Dijkstra era after van Rossem (PV11). The significance fits §2’s through-line — Cardano’s constraint has long been “throughput and tooling depth,” and W25’s live Pyth oracle answered the tooling side while the Leios testnet answers the throughput side. A testnet is not production, but in a week when price sits at a multi-year low, the most ambitious scaling work entering a public stage is evidence the build clock has not stopped.

2026 Budget — 11 of 69 Proposals On-Chain

On the treasury side, the 2026 budget advanced to its on-chain voting stage. Of 69 proposals requesting ~331.6M ADA (NCL 350M; Epoch 613→713), 11 cleared Hydra Voting (67%) and moved to on-chain treasury-withdrawal voting on 6/23 (Intersect Weekly Update #117, 6/26). The largest is Intersect Governance at 25.4M ADA, alongside Wirex (~3.96M), Mithril (~3.81M, IOG), the TxPipe tooling suite (Tx3 / Dolos / Oura / Pallas / UTxO RPC), hardware-wallet maintenance, MLabs, and TSC support. The Cardano Foundation voted YES on proposals totaling ~115.4M ADA. The voting deadline is ~7/23 (Epoch 645). The pattern from W22’s “first verdict” and W24’s “audit gate” holds — Cardano allocates capital through a process with explicit thresholds and stages, not rubber-stamping. W25’s ratification of IO Research’s “Vision 2026” (74.96%) sits at the upstream of this 69-proposal cycle.

3. Governance & Policy — The Fed Squeeze Lands, CLARITY Stalls, Cardano Votes and Budgets

W26’s governance axis reads on two layers — the macro follow-through and Cardano’s own process.

US — Warsh’s Pivot Lands, and CLARITY Stalls

In W25 the Fed’s communication changed; in W26 the consequence arrived. The “no-easing-signaled” Fed implied by Warsh’s first FOMC (6/16-17) — a hawkish-leaning dot-plot and a shift to data-dependence — unwound liquidity-sensitive AI/tech equities first (§1). It was the re-pricing of the Fed’s reaction function, not the rate path itself (10Y -8.1 bp), that hit valuations. On the legislative track, the CLARITY Act stalled — it passed Senate Banking (15-9) on 5/14 and reached the Senate calendar (6/1), but ethics-provision talks collapsed 6/9, and Lummis set an end-July floor deadline. Passage needs ~7 Democratic votes and pre-recess prospects are uncertain (reported). Separately, the stablecoin GENIUS Act has a 7/18 implementation deadline. The latter is the structural item that matters most directly for crypto; the market-structure bill’s delay remains an asset-class sentiment factor.

Japan — FIEA Heads to the Upper House; the 20% Tax Is a Separate Track

In Japan, the FIEA amendment reclassifying crypto as financial instruments passed the Lower House on 6/11 and awaits Upper House deliberation (effective ~FY2027), adding securities-style disclosure, insider-trading rules, and tougher penalties. The flat 20% separate-taxation regime is a separate track under the 2026 Tax Reform Outline, slated for Jan 1, 2028 — conflating it with the FIEA bill is the most common error in Japanese reporting. USDJPY stayed in the intervention zone at ~161.7, with no confirmed BOJ/MOF action this week.

Cardano Governance — CC Election Voting and the Budget On-Chain

Cardano’s own governance is at the thick of its procedural phase. The Constitutional Committee 2026 election is in its voting window — 10 candidates for 4 seats, closing 7/23 (W25 cited a 6/23 open; some sources cite 6/28, so we do not state the open day as fixed). As the first substantive CC election under the new constitution, candidate composition and participation will set the depth of Cardano’s next committee. The 2026 budget moved to on-chain voting (§2). And recently, the Cardano Summit 2026 was rejected by governance vote (reported ~65.2% vs the 66.7% threshold, late May) — a live demonstration that Voltaire’s veto power actually fires. A central bank choosing discretion while Cardano moves on explicit thresholds — the contrast carried from W25 still holds in W26.

4. Midnight Watch — NIGHT Re-Diverges; the Build Runs on Its Own Clock

Midnight’s W26 is again a study in separating price from progress.

NIGHT — The Faded Decoupling Swings Back, Slightly

Price is covered in §1; the Midnight read is this — the decoupling W25 recorded as “faded” swung back slightly in W26. NIGHT was -0.9% (CoinGecko) / -1.7% (SDE), holding well above ADA’s -8.1%. But we do not promote this to a thesis. The swing is small for a single week, the cross-venue price stays dispersed ($0.0305-0.0307), and decisively, published City V2 / on-chain usage data remains zero. The W21→W26 arc shows a separation driven by attention flows — appearing, fading, and reappearing, whose direction can reverse week to week. Midnight’s medium-term thesis does not rest on the weekly NIGHT print — it rests on usage data. W26 keeps NIGHT in the “watch item” slot.

Build Side — Kūkolu Mainnet, DUST, Roadmap

The build side runs on its own clock. Midnight’s mainnet (Kūkolu phase) has been live since 3/31, DUST — the fee resource for ZK smart contracts — is in production, and NIGHT is tradable, with nine federated validators operating. The roadmap runs Kūkolu (live) → Mōhalu (Q2-Q3, incentivized testnet, SPO block-producer onboarding, DUST Capacity Exchange) → Hua (late 2026, full decentralization, bidirectional bridge with LayerZero) — each timeline a target, not a commitment. On the risk side, NIGHT carries structural thaw-unlock sell-pressure through ~Dec 2026. Monument Bank’s deposit-tokenization PoC (announced 3/25; the up-to-£250M figure is a planned amount, not confirmed TVL) carries forward as an early enterprise-validation case.

The W19→W26 Midnight Arc

• W19–W22: design → messaging → operations → institutional-phase signaling.
• W23: developer/agent layer + NIGHT holding.
• W24: budget/audit-gate week.
• W25: build funnel widened (accelerator, Turnkey, DUST write-up); NIGHT decoupling faded.
• W26: NIGHT re-diverged slightly (roughly flat vs ADA -8.1%), but attention-based with no fixed direction — a reminder, now one notch stronger, that for Midnight the durable proof is usage data, not price.

5. Risk Dimensions

Dimension Reads

Overall MEDIUM → ELEVATED: a step up. W25’s “orderly” backdrop broke as the macro risk-off reached crypto and pulled ADA to a 5-year low. Added to that, the van Rossem miss (below) injected a small uncertainty into build-side conviction.

Macro HIGH ↑ (worse): the level rose. The liquidity squeeze from Warsh’s 6/17 pivot expressed itself as an AI/tech valuation unwind (Nasdaq -4.6%, S&P -2.0%, VIX +12.3% to 18.4). W25’s weak-yen Nikkei melt-up reversed (-3.1%), oil fell -7% on reported Hormuz normalization, and the dollar held firm (DXY +0.5%, USDJPY ~161.7). Watch — (1) the depth and persistence of the AI/tech correction, (2) stabilization of the ADA 5-year-low zone, (3) Fed commentary and hike pricing, (4) the USDJPY intervention line.

Regulatory MEDIUM → (slightly up): CLARITY’s stall (ethics talks collapsed 6/9; end-July deadline; ~7 Democratic votes the key) adds uncertainty, while GENIUS (7/18) and Japan’s FIEA (to the Upper House) advance as structural buildout. Next gates — the pre-recess CLARITY fight and Japan’s Upper House deliberation.

Architecture MEDIUM ↑ (worse, but forward): the one negative surprise. van Rossem missed its ~6/23 enactment window; mainnet stays on PV10 (Koios protocol_major=10 @ epoch 639). Not a technical failure but a schedule slip — yet a fork written as “days away” missing its window lowers conviction. At the same time, the Leios testnet launched and the build’s direction itself moved forward. Next gate — a clean mainnet fork (we will not state a date).

Adoption LOW → (forward): direction forward, proof pending. The Leios testnet and the on-chain budget lower activation barriers, but price sits at multi-year lows and NIGHT’s signal is unresolved. The conversion test — do new rails (Leios, Pyth, post-fork toolchain) become measurable usage — remains the medium-term key.

Governance MEDIUM →: flat, process-driven. The 2026 budget moved on-chain (11/69), the CC election is in its voting window, and the Summit rejection shows the veto power firing. Next watch — early on-chain budget voting (7/23 deadline) and CC election participation/results.

W26 Thesis and the Risk Dimensions

The thesis — “the fork missed its window, macro sank crypto, and the build advanced anyway” — maps onto the risk dimensions as Macro deteriorating to HIGH + Architecture’s first negative surprise vs still-advancing Governance/Adoption. The market’s energy was not in crypto, nor in a single Cardano event (rather a non-event — the missed fork), but entirely in macro liquidity and risk-aversion. The investment implication condenses to a two-stage posture — short-term, watch the macro risk-off bottoming and the actual van Rossem enactment (already overdue); medium-term, watch whether Leios, Pyth, and the post-fork toolchain convert into usage — the test NIGHT’s on-again-off-again decoupling keeps pointing to.

6. Next Week

Six things to watch next week (W27 / Jun 28 – Jul 4):

1. van Rossem mainnet fork — actual enactment (already past its window) — whether the submitted governance action clears voting/ratification and mainnet actually forks to PV11. Koios protocol_major moving 10→11 is the only definitive signal. Does SPO/tooling readiness hold, or does the slip extend?

2. Early signals from the Leios “Musashi Dojo” testnet — first metrics from the next-gen consensus now in its public stage, and stress-test progress. The first read on whether the throughput claim moves from target toward measured.

3. Early 2026 on-chain budget voting — DRep/CC/SPO voting trends on the 11 treasury withdrawals (largest: Intersect Governance 25.4M ADA; deadline ~7/23). Participation and outcomes in a high-density cycle.

4. The AI/tech risk-off bottoming + the ADA 5-year-low zone — whether the US equity correction runs its course or deepens, and whether ADA bases around ~$0.16 or breaks lower. The macro item that most drives asset-class sentiment.

5. US CLARITY Act’s end-July deadline + GENIUS 7/18 implementation — whether the legislative calendar moves after the ethics-talk collapse, and whether the stablecoin regime enters operation.

6. CC 2026 election voting progress + Japan FIEA in the Upper House — participation in the 4-seat vote (closing 7/23) and the start of Upper House deliberation on Japan’s FIEA amendment.

W22 (first verdict) → W23 (peak price-build divergence) → W24 (audit gate) → W25 (the Fed changed its voice, the fork loomed) → W26 (the fork missed its window, macro sank crypto) — the through-line is a market whose energy keeps rotating from crypto to macro (Fed liquidity, AI/tech valuations), while Cardano’s build runs on its own clock — except this week, that clock missed its appointment once. The medium-term thesis is unchanged — the signal that matters is no longer price divergence but usage — and the moment van Rossem (actually enacted) and Leios/Pyth land together as measurable usage is where that test begins in earnest.

Published by: LiveMakers (SITION Group)
SIPO: DRep #11 · SPO ×3 · Midnight Ambassador
Data sources: Koios (tip / totals / cli_protocol_params — protocol_major=10 measured 2026-06-27) · Intersect MBO official (Weekly Update #117) · Input Output official (Leios / Hoskinson announcement) · Cardano Foundation official · gov.tools / cexplorer / adastat (reference) · DefiLlama · CoinGecko · SITION SDE market_indicators (traditional markets 6/26 NY close; crypto 6/27 spot) · Federal Reserve official (federalreserve.gov — 6/17 FOMC statement + SEP) · FSA Japan · Midnight Network official · secondary reporting (Bloomberg / CoinDesk / The Block / Reuters / Axios — marked “reported” in-text)

Not investment advice. For informational and research purposes only.