THE DOMINANCE DEBRIEF

Week of September 14 – September 21, 2026

Issue #27

The crypto market expanded 8.79% and USDTDOM gave up 8.20%, the widest move of the week. SOLDOM rose 6.22%, the only pair that outran the market. BTCDOM, BNBDOM and ETHDOM all finished within a percent of their open.

1. THE WEEK IN DOMINANCE

The total crypto market expanded 8.79% this week, from roughly $2.61 trillion to roughly $2.84 trillion, and dominance sorted itself by pace rather than direction. Tether Dominance gave up 8.20%, opening at 6.95% and closing at 6.38%, the largest move of the week in either direction. Solana Dominance rose 6.22%, the only pair that gained share by genuinely outrunning the market rather than simply keeping stride with it. Bitcoin Dominance added 0.30%, BNB Dominance added 0.82%, and Ethereum Dominance slipped 0.17%, each finishing within a percent of where it opened even as the total market moved nearly 9% underneath them.

2. MACRO CONTEXT — THE BACKDROP

Monday afternoon through Wednesday morning the market sold off, with Bitcoin sliding from $77,730 to $75,590, a decline of 2.75%, and the low for the whole complex printing in the early hours of Wednesday. Tuesday evening the Senate rejected cloture on the CLARITY Act by a vote of 49 to 50, well short of the sixty needed, ending comprehensive market-structure legislation in the Senate for the year; the vote had been largely priced in beforehand. Wednesday the FOMC raised its target range a quarter point to 3.75%-4.00%, the first increase since 2023, and risk assets rallied through the decision rather than away from it.

Thursday is where the week turned. The SEC issued its Innovation Exemption, a pair of five-year conditional exemptions permitting tokenised NMS stock to trade through automated market makers and liquidity pools, with the exchange definition lifted for tokenised securities venues and the dealer definition lifted for qualifying liquidity providers. The market drifted through the rest of Thursday, and the decisive leg of the rally ran Friday, carrying Bitcoin from $76,371 to $80,874 by Saturday, before the weekend settled into a holding pattern between roughly $80,400 and $81,200 with no net progress through Sunday night.

Monday morning delivered the week’s single biggest session: Bitcoin ran from $81,169 to $84,824 in twelve hours, a 4.5% advance that cleared $82,000 after that level had turned back four separate attempts since August 25. Exchanges liquidated roughly $262.3 million of short positions inside an hour, $218.55 million of it in Bitcoin alone. Sentiment tracked the arc: Fear and Greed opened the week at 57, dipped to a Neutral 50 on Thursday, and closed at 70.

3. ASSET DEEP DIVE

Tether (USDT) Dominance

Open: 6.95% · Close: 6.38% · WoW: -8.20%

The Structure

From early July through August 18, Tether Dominance held a band roughly between 8.23% and 8.71%. It left that band over three sessions from August 19 to 21, opening the 19th at 8.33% and closing the 21st at 6.95%. Since then it has been range-bound: every daily close from August 21 through September 17 landed between 6.74% and 7.06%. Friday’s 6.66% close was the first to land outside it. The pair has not been back inside since.

This Week’s Price Action

USDTDOM opened at 6.95%, rose for a day and a half to its 7.21% high on Tuesday evening, in the same hour the CLARITY Act vote failed, and then fell for the remainder of the week, closing at 6.38%, within a hundredth of a percent of its 6.37% low, which printed in the hour of Monday’s squeeze. The 13.19% swing is the widest of any pair this week, by a distance, and the second half of it did essentially all the work.

The Daily View

Daily closes ran 6.92%, 7.15%, 7.10%, 7.02%, 6.66%, 6.64% and 6.62% from Monday through Sunday, with Monday’s session then taking the pair to 6.38%. One step up, three sessions grinding lower, then Friday’s gap down, then a weekend that went nowhere, then a Monday that resolved it. The weekend’s flat stretch sat right on the underside of the range USDTDOM had just left, and it never got back in.

The Why

This week’s move is one-directional. Tether traded at $0.9997 at both ends of the week; the entire 8.20% decline in its market share came from everything around it growing 8.79%.

The analysis worth making here is about shape rather than size. USDTDOM rose 3.8% off its open in the first day and a half, while the broader market fell into the CLARITY Act vote, then fell 11.6% from that high as the market rallied out of Thursday’s SEC decision. No other pair in this issue traced the week’s risk pivot as cleanly. That is what a stablecoin dominance curve is for: it reads as a direct inverse of the total market’s pace, and the sharper the market moves, the sharper the reading comes through. The SEC’s exemption drove the rally, and that rally was the largest factor pulling Tether Dominance down through the back half of the week.

The Outlook

6.74% is the lower edge of the range the pair left on Friday, and a close back above it would say the breakdown failed. 6.37% is the week’s low and the level a continuation has to clear. Friday’s Deribit quarterly expiry is the calendar event standing in front of the call. This is a setup that rewards taking a side rather than splitting the difference: lean toward continuation, since nothing in the week’s second half argues for a snapback, and a falling USDTDOM is a rising market, so the lean here is really a statement about risk appetite.

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4. THE DOMINANCE MATRIX

Ranked by change, this week splits into one outlier and a cluster: Solana Dominance up 6.22%, BNB Dominance up 0.82%, Bitcoin Dominance up 0.30%, Ethereum Dominance down 0.17%. That cluster is tighter than it looks: Bitcoin Dominance, BNB Dominance and Ethereum Dominance finished inside a band barely a percent wide, on a week the market grew 8.79%, which means each moved almost exactly at the market’s own pace for seven straight days.

Solana Dominance is the outlier and the only genuine share gain here. Solana itself rose 15.19% against a market up 8.79%, and SOLDOM’s 6.22% follows directly from that gap. The catalysts are specific rather than incidental: Solana cut its block time to 250 milliseconds, lifting network throughput by roughly 17%, and US spot Solana ETFs took in $47.62 million on Friday, the entire amount through BSOL, extending the category’s inflow streak to twelve consecutive weeks. SOLDOM’s high came Friday evening at 2.43% and its low Wednesday morning at 2.21%, a 9.95% swing.

Bitcoin Dominance is the most interesting of the cluster because of when its gain actually arrived. Bitcoin rose 9.13% against the market’s 8.79%, and BTCDOM’s 1.38% swing is the narrowest reading here. Its low at 58.71% printed Friday morning and its high at 59.52% printed in the hour of Monday’s squeeze. The pair spent almost the entire week below its open and recovered all of it in a single session, on a liquidation event that concentrated in Bitcoin specifically rather than spreading across the complex.

Ethereum Dominance is the one pair that lost share, down 0.17%, and it lost it while Ether’s own price rose 8.60%. That is the cleanest illustration in this issue of an asset rising in price and still losing market share. Its 11.81% high came in the opening session, its 11.31% low in the hour the CLARITY Act vote failed, and it climbed back to 11.80% in the small hours of Monday before finishing at 11.58%. US spot Ether ETFs ran net outflows through the week, a reversal from the inflow run of the weeks before.

BNB Dominance gained 0.82% as BNB itself rose 9.38%. Its high at 3.81% came early Friday and its low at 3.60% in Monday’s opening session, a 5.83% swing that covers more ground than the weekly change alone suggests. BNBDOM built its advance into Friday and then gave most of it back across the weekend.

This was market-wide expansion, not rotation, and the only pair that gained share on its own merits was Solana Dominance.

5. THE WEEK AHEAD — EVENTS CALENDAR

Monday, September 21 — Agave 4.3 validator release for Solana (Final checkpoint before Alpenglow activation, targeted September 28)

Tuesday, September 22 — Avalanche Helicon mainnet upgrade, 15:00 UTC (AvalancheGo v1.15.0) | Messari Mainnet NYC opens, running through September 24

What to Watch for Dominance: Friday’s Deribit expiry is the event with the widest reach this week, and the split between $14.73 billion in Bitcoin notional and $1.92 billion in Ether notional is lopsided enough to matter for the spread between BTCDOM and ETHDOM. It also lands directly in front of the USDTDOM call from this issue’s deep dive, where 6.74% and 6.37% are the levels that decide it.

6. CLOSING REMARK

An 8.79% market expansion sorted every pair by whether it could match that pace, and almost nothing could. Solana Dominance outran it. Tether Dominance took the full weight of it. Everything else, Bitcoin Dominance, Ethereum Dominance and BNB Dominance alike, simply moved with it.

That is the lesson to carry forward: in a week this decisive, dominance told a sharper story than any single asset’s price did on its own, and the pair that actually earned its gain is the one to watch for whether that kind of outperformance repeats.

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Dominance Debrief #27