The StockTreeMap blog
What is moving the market, which sectors are carrying it, and the news and politics behind the numbers — written up against the data on this site.
Allsp500 36sectors 28technology 14ai 7semiconductors 7financials 5meta 5energy 4nvidia 4utilities 4apple 3consumer-discretionary 3earnings 3federal-reserve 3healthcare 3rates 3cybersecurity 2mergers 2oil 2accenture 1alphabet 1amgen 1banks 1breadth 1california 1canada 1charter 1coinbase 1comcast 1communication-services 1crypto 1dell 1hpe 1industrials 1it-services 1leadership 1market-breadth 1microsoft 1netflix 1novartis 1oracle 1regulation 1seagate 1storage 1stryker 1telecom 1tesla 1travel 1tsx 1valuation 1western-digital 1wildfire 1
Energy erased $73.6 billion from the S&P 500 today, its worst sector day in over a month
·3 min read
The S&P 500 fell 0.44% on September 16, but Energy fell 3.03% cap-weighted and lost $73.6 billion, its steepest one-day drop of the last month, as oil prices pulled back from four-month highs on news a damaged Saudi pipeline will restart within days.
sectorsenergyoilsp500Apple added $164 billion to the S&P 500 today. Six chipmakers lost $284 billion
·3 min read
Apple's 3.56% rise was the single largest dollar gain of any S&P 500 stock on September 10 — bigger than Nvidia's loss. It wasn't close to enough: Nvidia, Micron, Intel, AMD, Lam Research and Broadcom lost a combined $284.1 billion on a day multiple outlets flagged as a broad chip selloff.
sectorstechnologysemiconductorsapplesp500Oracle's capex guidance lifted Dell and HPE 12%. It cost Oracle 1.7%.
·3 min read
Dell and HPE posted the S&P 500's biggest gains on September 11 after Oracle's CFO reaffirmed $90-95 billion in capex guidance. Chipmakers Nvidia and Micron barely moved, and Oracle itself fell 1.74% — here's the split in StockTreeMap's own sector data.
sectorstechnologydellhpeoraclesp500aiNvidia's $177 billion drop was more than double what CrowdStrike and Palo Alto Networks gained combined
·3 min read
Nvidia lost $177 billion Monday, more than twice what CrowdStrike, Palo Alto Networks and Fortinet's rally added, after an Anthropic essay calling for AI to be paced split the market into cybersecurity winners and chip losers. Technology still closed the S&P 500's worst sector.
sectorstechnologycybersecuritysemiconductorssp500Alphabet's 2.3% slide cost Communication Services more than Charter's 8% crash
·3 min read
Charter and Comcast grabbed the September 9 selloff headlines, down 8.13% and 6.61%. But S&P 500 data shows Alphabet, down just 2.28%, erased $94.3 billion — about 80% of the sector's $118.4 billion loss and 7.5x what Charter, Comcast and T-Mobile lost combined.
sectorscommunication-servicesalphabetchartercomcastsp500Amgen's worst day in a year was only 15% of healthcare's $162 billion loss
·3 min read
Healthcare was the S&P 500's worst sector on September 8, down 2.54% cap-weighted after a failed Novartis cholesterol trial. Amgen fell 10.1% and Stryker fell 8.8% - their worst days in at least a year - but together the two covered barely a fifth of the sector's $162 billion drop.
healthcareamgenstrykernovartissp500sectorsTesla and Netflix did nearly 80% of Consumer Discretionary's damage today
·2 min read
Consumer Discretionary was the S&P 500's worst sector on September 4, down 1.39% cap-weighted. Tesla and Netflix alone accounted for $106 billion of the sector's $135 billion market-cap loss; strip them out and the sector was flat.
sectorsconsumer-discretionaryteslanetflixsp500FICO and Equifax lost a combined $5.4 billion after a regulator called FICO's pricing a monopoly
·3 min read
FICO fell 16.7% and Equifax fell 6.4% on September 4 after the FHFA ordered Fannie Mae and Freddie Mac to accept VantageScore from every lender immediately. The two stocks have moved together before, but never at this scale.
sp500regulationfinancialsThe memory-chip rally added more to the S&P 500 today than Nvidia did
·3 min read
Eight memory and storage chipmakers added a combined 0.23 index points to the S&P 500 on September 4, more than Nvidia's 0.07, as SanDisk jumped 11.9% on a DRAM and NAND price surge. The index still closed down 0.34%.
sp500semiconductorstechnologyNvidia alone drove nearly half of today's S&P 500 gain
·3 min read
The S&P 500 rose 0.54% on September 2, but $NVDA's 3.2% move contributed almost half of that by itself. Strip it out and the index gained just 0.32%. This is the sixth time in a month a single stock has carried this much of the tape.
sp500sectorsainvidia