The week software sold its earnings and semis bought theirs
A 5th-percentile software-versus-semis week, leveraged funds covering Nasdaq shorts at a 92nd-percentile pace while pressing the Russell to a near-record short, two California utilities repriced by one bill, and long bonds in London and Sydney at decade highs.
The index finished +0.1% and hid a 5th percentile week between software and semiconductors, made almost entirely by earnings. Leveraged funds covered Nasdaq shorts at a 92nd percentile pace and pressed the Russell to a near-record short in the same report, two California utilities lost 13.9% and 19.1% on one bill, and long bonds in London and Sydney joined Tokyo at decade highs.
What changed
Software fell 4.7% against semis, a 5th percentile week
Weekly return, the names that made the spread
Software reporters against the hardware and memory names · Friday to Friday
The cloud-software ETF returned 4.68 points less than the semiconductor ETF over the five sessions, a spread at the 5th percentile of 3,810 days in the pair's record. The index that holds both finished the week +0.1%.
The spread was made by earnings. GWRE fell 21.1%, MongoDB 17.4%, Autodesk 16.4% and UiPath 16.3%, each after a report. On the other side SNDK rose 17.2% and Dell 15.0% after its own.
Two weeks ago this issue reported software leading the upside inside a flat index. The same group led the downside this week on the same kind of catalyst, which is the reason to call it a rotation rather than a verdict on either group.
Boundary: A tail spread identifies rotation. It does not identify its cause beyond the reports that landed in the week, or say whether it persists.
Leveraged funds covered Nasdaq shorts at a 92nd percentile pace and pressed the Russell short
Weekly change in leveraged-fund net position
Contracts · week to the Tuesday observation, released Friday
Leveraged funds bought back 27,140 contracts of E-mini Nasdaq-100 exposure, taking the group's COT index from 38.1 to 81.9 in one report. Against 1,054 weekly changes that is the 92nd percentile by size. The position is still net short, 14,092 contracts, but most of it was covered.
Small caps went the other way. The same group added 11,799 contracts to its E-mini Russell 2000 short, taking that COT index to 2.6, within a few points of the most short the record holds. The net position is 109,499 contracts short, 25.8% of open interest.
In rates the picture split as well: 71,837 contracts of 10-Year shorts were covered while 35,281 contracts were added to the 2-Year short, whose COT index sits at 98.7. Large caps and the long end were bought; small caps and the front end were sold.
Boundary: Commitments of Traders reports the Tuesday position and publishes it the following Friday. Everything here is dated 2026-09-01 and says nothing about Wednesday to Friday.
Edison fell 19.1% and PG&E 13.9% on one wildfire bill
Edison International, with the week shaded
Daily bars and volume · 90 calendar days through September 4
EIX closed at $56.77 on 2026-09-04. On the event date, 2026-08-31, volume was 29,819,213shares and the close was $53.98.
Monday's session did most of it. Edison International fell 23.1% on August 31, a 14.2σ day against its own history, and PG&E fell 20.1%, 11.9σ. Over the five sessions Edison closed at 56.77 against 70.17 a week earlier, −19.1%, and PG&E at 14.30 against 16.60, −13.9%.
The driver is legislative. An amended wildfire-liability bill, SB 492, was published on August 31; the Assembly let it die on September 1; and on September 2 PG&E announced a strategic review and deferred about two billion dollars of 2027 capital spending, which is the company release this item rests on. The stocks recovered part of Tuesday and gave it back.
Sempra, the third California utility, finished the week close to flat. The market priced a bill about two companies, which is the reason this reads as policy rather than as a sector.
Boundary: The bill’s text and status come from the California Legislature; the only company document in the week is PG&E’s September 2 release. Edison issued none.
Long bonds in London and Sydney reached decade highs in the same week as Tokyo
10-year yields, prior decade high to this week
The scanner checks a ten-year window; both cleared it
The UK 10-year gilt closed at 5.242% on 2026-09-02, above every reading of the previous ten years. Australia's 10-year closed at 5.22% the same day, also above its ten-year range. Japan's 10-year crossed 3% for the first time since 1996 on the same session, which was Thursday's Chart of the Day.
Three long-bond markets on three continents setting decade highs in one week is the kind of confirmation the selection bar asks for. It says the repricing of long duration is not an American story about deficits; it is a global story about term premium, and the US long end, which made its own record low in price three weeks ago, is part of it rather than the cause of it.
Boundary: The scanner’s test is a ten-year window. Both yields were higher before it, in 2008 and 2011, so this is a decade high and not a record.
CNH rose 23.3% on 4.5× its usual volume, and the farm-equipment group went with it
CNH Industrial, with the week shaded
Daily bars and volume · 90 calendar days through September 4
CNH closed at $14.40 on 2026-09-04. On the event date, 2026-09-04, volume was 26,022,525shares and the close was $14.40.
CNH Industrial closed at 14.40 against 11.68 a week earlier, +23.3%, on five-session volume 4.5 times its prior quarter's average, and at a fresh 52-week high. AGCO rose +17.6% and Deere +10.0% in the same week.
No company in the group published anything in the week that explains the move. A broker upgrade of CNH dated August 31 is in the record, and it is not the kind of source this issue treats as a catalyst. What the evidence supports is narrower: an entire equipment group repriced together on heavy volume, which is a sector event with no company document behind it yet.
Boundary: No verified company filing or release is attached to this move. The group move is the finding; the reason is not.
Short-term breadth recovered eight points. Sentiment fell anyway.
Share of stocks above their own moving averages
Friday to Friday
Last week's tripwire asked whether the share of stocks above their ten-day average would recover 50%. It went from 38.88% to 47.04%: most of the way, and short. The Tape score moved from 48 to 56 on the same inputs. The slower horizons did not join; the 200-day share slipped from 53.62% to 52.90%.
Sentiment went the other way. Fear & Greed fell from 49.66 to 45.58, still neutral, while the index finished +0.1% and dispersion sat at the 76th percentile of its history. A tape that recovers while the mood cools is the opposite of last week's pairing, and the honest read is that neither measure has settled.
Ultragenyx fell 44.0% in a day on published trial data
Ultragenyx, with the week shaded
Daily bars and volume · 90 calendar days through September 4
RARE closed at $15.30 on 2026-09-04. On the event date, 2026-09-03, volume was 27,032,952shares and the close was $14.85.
Ultragenyx closed at 15.30 against 25.61 a week earlier, −40.3%. A fall of 44.0% came on 2026-09-03, a 10.4σ session, two days after the company announced the publication of 96-week Phase 3 data for its glycogen-storage-disease gene therapy.
The release is the company’s own and the data it describes are positive on the study’s terms, which is what makes the move worth recording: a name that sat at the top of the unusual-options rankings on the call side into the week, and lost two fifths of its value on a publication it called successful. The market disagreed with the adjective.
What did not confirm
A weekly record should preserve the evidence that refused to join the headline. These are the gauges that kept this issue from becoming a broad risk-off call.
The housing split is last month’s release
The scanner’s second-ranked candidate, permits up +2.4% against starts down −13.5%, is the July report published on 2026-08-18. It was issue one’s story and nothing new about it printed this week. The scanner still admits it because its window is not clipped to the issue.
Open live gauge →Volatility did not confirm the software selloff
The VIX/VIX3M ratio ended at 0.825 with VIX at 14.53. A 5th-percentile rotation inside the index did not reach the volatility curve. Friday’s index closes stay provisional until the official Cboe settle audit.
Open live gauge →The average stock did not break
The Hidden Bear Index reads mixed: the average large stock sits 1.7% below its own high against 1.0% for the index. Software’s week was a group repricing. The market as a whole did not join it.
Open live gauge →Japan was not in the receipt
The week’s largest rates print, Japan’s first 3% close since 1996, never reached the scanner: the Chart of the Day cooldown removes a featured series from the idea list the scanner reads, and it was featured on Thursday. It appears in the rates story above by link. The scanner needs its own read of the yield archive.
Open live gauge →What carries into next Friday
Scored: did the rate covering continue?
No. The 30-Year position changed by −51 contracts, among the smallest weekly changes in the record, and the COT index moved from 92 to 91. The covering stopped where it was; the 10-Year took over.
Watch live →Scored: did short-term breadth recover 50%?
Not quite. 38.9% to 47.0% is most of the way back and still under the line, so last week reads as a pause that has not fully cleared.
Watch live →Scored: did the S&P short keep growing?
Barely. Leveraged funds added 2,360 contracts, the 4th percentile weekly change by size, to a net short of 317,564. The divergence neither widened nor closed; the action moved to the Nasdaq and the Russell.
Watch live →Does software recover against semis?
The five-session SKYY-minus-SMH spread is the cleanest read. Back above zero next Friday and the week was an earnings reaction; a second week in the bottom decile and it is a rotation with legs.
Watch live →Does the Russell short get covered?
A COT index near zero is as short as the record gets. Whether leveraged funds cover from here or hold it decides whether small caps get the squeeze the positioning implies.
Watch live →Does the 10-day share clear 50%?
Carried forward. Above 50% and the August cooling is over; a turn back down from here with the slower horizons still slipping is the version to worry about.
Watch live →Method and source trail
The issue is a frozen Friday-close document. The Rust scanner combines liquid stock anomalies, historical series extremes, horizon-score changes, breadth, sector and cross-asset returns, release-aware economic data, and CFTC positioning. It emits evidence and caveats; it does not emit publishable prose.
Editorial selection narrowed the receipt to 7 changes. Company and government claims were checked against primary releases, and each dated observation links back to its live page. Historical percentiles use each series' available record. Current-universe cross-sections remain labeled point-in-time exhibits.
Figures above will not update. Live tools may change with later closes, revisions, or source corrections. Material corrections to this issue will move its modified date and be stated on the page.
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