In September 2026 the S&P 500 fell 0.2%, and 24% of its stocks finished higher. It was the index's worst September since 2023. The best performer was Everpure (+44.3%); the worst was Fair Isaac (-42.3%). Fair Isaac fell 42.3% in September as Investor's Business Daily reported “Fair Isaac Tanks After Government Snaps FICO Score Monopoly For Mortgage Pricing”1. Information Technology was the strongest sector (median stock +5.4%) and Materials the weakest (-8.4%).
| Company | Sector | Month | Year to date | Why it moved |
|---|---|---|---|---|
| Everpure (P) | Information Technology | +44.3% | +100.2% | No single company story; see the sector chart. |
| Moderna (MRNA) | Health Care | +34.6% | – | As Investor's Business Daily reported “After Moderna's Dizzying Rally, It's Time To Sell, Says Analyst”2. |
| Bloom Energy (BE) | Industrials | +34.6% | +219.5% | No single company story; see the sector chart. |
| Intel (INTC) | Information Technology | +34.1% | +225.2% | As Yahoo Finance reported “Intel Stocks Jump as OpenShell Adds Agent Policy Enforcement”3. |
| Advanced Micro Devices (AMD) | Information Technology | +30.8% | +187.5% | After merger and acquisition news4. |
| Meta Platforms (META) | Communication Services | +26.9% | +10.2% | No single company story; see the sector chart. |
| Marvell Technology (MRVL) | Information Technology | +26.7% | +215.9% | No single company story; see the sector chart. |
| Illumina (ILMN) | Health Care | +24.4% | +102.6% | No single company story; see the sector chart. |
| Skyworks Solutions (SWKS) | Information Technology | +24.1% | +33.8% | No single company story; see the sector chart. |
| Hewlett Packard Enterprise (HPE) | Information Technology | +23.9% | +171.9% | After a new contract or order5. |
| Company | Sector | Month | Year to date | Why it moved |
|---|---|---|---|---|
| Fair Isaac (FICO) | Information Technology | -42.3% | -60.9% | As Investor's Business Daily reported “Fair Isaac Tanks After Government Snaps FICO Score Monopoly For Mortgage Pricing”1. |
| Gen Digital (GEN) | Information Technology | -28.2% | -16.9% | No single company story; see the sector chart. |
| Charter Communications (CHTR) | Communication Services | -26.9% | -46.6% | No single company story; see the sector chart. |
| MGM Resorts (MGM) | Consumer Discretionary | -26.3% | -16.5% | After a takeover offer for it was withdrawn6. |
| Equifax (EFX) | Industrials | -26.1% | -35.0% | No single company story; see the sector chart. |
| Axon Enterprise (AXON) | Industrials | -25.5% | -25.7% | No single company story; see the sector chart. |
| General Mills (GIS) | Consumer Staples | -23.1% | -28.6% | No single company story; see the sector chart. |
| Albemarle (ALB) | Materials | -21.9% | -25.1% | No single company story; see the sector chart. |
| Blackstone (BX) | Financials | -21.6% | -25.0% | No single company story; see the sector chart. |
| DoorDash (DASH) | Consumer Discretionary | -21.4% | -19.6% | No single company story; see the sector chart. |
"Why it moved" is drawn from news coverage during the month (numbered sources below). The news is context and may not be the whole cause of a move. Stocks with a one-day price change over 35% (usually a spin-off or share split) are left out.
Subscribers see the model's rank and expected return for every S&P 500 stock, updated every trading day.
See plansPrice returns from Torvanta's end-of-day data (dividends not included). Sources link to the original coverage. Research only, not investment advice or a recommendation to buy or sell any security. Rankings change as data changes and can be wrong. Torvanta and its founder may hold positions in securities discussed. Past performance does not guarantee future results.