Weekly Meme Coin Data Report — 9.21–9.27, 2026

The board's best week of the quarter, measured properly: $19.79B to $23.91B (+20.8%) on Sunday closes, equal-weighted +13.4%, PENGU +31.0% and BONK +24.7% leading, all eight green — plus the session-by-session split that shows Tuesday's board-wide move and Wednesday's board-wide giveback.

1. The week's table — Sunday close to Sunday close

Basis note, printed every week now: all prices are UTC daily closes and the change is close-to-close between the two Sunday boundary dates. One member needs a footnote this week. The WIF start we carry ($0.2383) is the week-four press-time snapshot; CoinLore's revised table shows the actual September 20 UTC close at $0.2026, on which basis WIF's week is +20.9%. Our frozen series keeps weeks comparable, so the +2.8% stands in the table — with the alternative basis stated beside it rather than silently swapped.

2. Two sessions up, one session back, four sessions of argument

The week was not one move. Monday the 21st: the board's Solana-and-dogs tier exploded — WIF +21% on CoinLore's table, BONK +11.96% on Investing.com's, FLOKI +12.7% off its Binance open, PENGU +11.6% — as Bitcoin pushed through $86,000 toward $87,000. Tuesday the 22nd carried the HTX snapshot that made the rounds: PEPE +32%, WIF +27%, DOGE +18%, BONK +16%, FLOKI +15%, SHIB +12% on the day (BlockBeats, September 22) — while roughly $919 million of shorts were liquidated market-wide, $557 million of it Bitcoin (Gate market data). Wednesday the 23rd was the bill: SPX fell 16.86% in one session (Investing.com's daily table), PEPE gave back 13% from its open (CoinGape daily data), DOGE slid from a $0.1053 intraday high to a $0.09269 close (CoinMarketCap's daily table), and Bitcoin lost its grip on $87,000. Thursday through Sunday was a holding pattern: the board drifted up on light volume while Bitcoin defended $84,000.

The internal ordering tells you what kind of week it was. The two coins that led — PENGU (+31.0%) and BONK (+24.7%) — were not the ones with the breakout headlines. The breakout names (WIF, PEPE, DOGE) took theirs early and spent Wednesday surrendering chunks of it. The most violent coin was again the thinnest book on the board, SPX: +9.91% Monday, +2.00% Tuesday, then −16.86% on Wednesday — the largest single-session move on the board in either direction all week. Even so, the two banked up-days carried it to a +0.6% week — its first green week in three. High beta moved; this week it held, barely.

3. Five weeks of board cap — the quarter in one line

Three properties of this week stand out against the other four. It is the largest weekly gain of the series — nearly double the August 31–September 6 week that previously held the record. It is the first week whose primary driver was measurable new money (the $2.39B ETF week) rather than positioning unwinds. And it is the first week where the weekly leader was a coin that had spent the whole month as a laggard — PENGU closed September 20 still down 8.7% for September, and finished the 27th up 19.6% on the month.

4. Volume and turnover — the conviction cross-check

Last week this section found leverage where cash should have been. This week the headline flow was cash — but participation inside the board thinned as the week aged. DOGE ended the week with a 24-hour turnover of $666.89 million against a $16.67 billion capitalisation — 4.0%, subdued for a name that had just printed its best close in ninety days (Coinlib's September 27 analysis). CryptoTicker's September 27 snapshot put the same figure near $809 million — different snapshot window, same conclusion: the Tuesday surge did not produce a sustained volume plateau. Bitcoin's own tape was the opposite: $16.04 billion of 24-hour volume at the Sunday snapshot (CoinMarketCap), and the ETF line items — $999M Monday, $714.7M Tuesday, $347M Wednesday, $190.6M Thursday, $134.5M Friday (SoSoValue daily breakdown) — show demand front-loaded and fading through the week, which matches the price path almost exactly.

5. Level watch — where each coin sits against its own structure

The pattern across the board: the coins that broke out on Monday–Tuesday are all sitting a few percent under their new resistance, having chosen to consolidate rather than fully retrace. That is the healthier of the two outcomes available to a breakout, and it is also the one that gets decided fast — either the retest holds in the next week or two, or the whole Tuesday move gets reclassified as a spike inside a range. Bitcoin supplies the tiebreaker: $85,800 is where the market itself says confirmation lives (CoinMarketCap's September 27 note).

6. A dispersion-by-session read — did the board move as one?

The board's 30.4-point weekly dispersion (PENGU +31.0% to SPX +0.6%) is a cross-sectional number, measured at the Sunday boundaries. Split by session it tells a cleaner story: Tuesday was a board-wide up-day — HTX's September 22 snapshot printed the large-cap tier green (PEPE +32%, WIF +27%, DOGE +18%, BONK +16%, FLOKI +15%, SHIB +12%), with PENGU and SPX also up on the day — while Wednesday saw a sharp, similar-shaped giveback (SPX -16.86%, PEPE -13% from its open, DOGE -7.7% into the close) that retraced part of Tuesday's advance. So the week was not eight independent coins drifting; it was one risk-on impulse on Tuesday and one risk-off impulse on Wednesday, with the four quiet sessions in between doing the consolidating.

That distinction matters for how you read breadth. A genuine rotation shows up as cross-sectional dispersion with the leaders changing week to week — which is what this week delivered, since the leader (PENGU) had been the month's laggard. A short squeeze also shows up as dispersion, but with the same names leading every day. The session map here (board-wide Tuesday, risk-off Wednesday) says the move was beta, not selection — and the laggard leading is the selection signal riding on top of the beta, not replacing it.

Net: the 30.4-point dispersion is real and worth printing, but it is the dispersion of a beta week whose leaders were unusual — which is exactly the part worth writing down, because a beta week with a laggard leading is the early shape of a rotation, not a squeeze.

The level-watch table sharpens the same point from the other side: only DOGE closed within 3.4% of a 90-day high, while the other seven closed well off their own structures. A relief move and a breakout look identical at +20.8% on the board; the level table is what separates them, and this week reads as relief — strong, broad, but not yet a structure-clearing breakout for most of the board.

The cap-weighted versus equal-weighted gap is the last thing the table hides. The 7.4-point spread between the board's +20.8% and the equal-weighted +13.4% is almost entirely DOGE: at roughly 70% of board float, its +13.6% moves the index more than PENGU's +31.0% moves the average. Both numbers are printed on purpose — one is what a dollar spread across the board earned, the other is what the average member did, and the gap is the information, not a rounding error.

The volume cross-check leaves one soft spot. Tuesday's surge did not build a sustained turnover plateau — DOGE's 24-hour turnover ran about 4.0% of its cap (Coinlib, September 27), subdued for a name that just printed its best close in ninety days. A conviction week normally arrives with rising turnover that holds; this one arrived with front-loaded turnover that faded. The price held, but the volume did not confirm, and that single caveat is why next week's flow, not this week's close, is the real test.

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Related reading

• Meme Coin Weekly News Review — 9.21–9.27, 2026
• Weekly Meme Coin Intelligence — 9.21–9.27, 2026
• Meme Coin Market Intelligence — 9.21–9.27, 2026
• Deep Dive: The Conviction Test, Passed