Stock Market Today: September 4, 2026 — Tech Rises While Indexes Slip
On September 4, 2026, the S&P 500 fell 0.38% to 7,718.60 and the Dow dropped 0.51% to 53,414.25, while the Russell 2000 gained 0.25% and the Technology sector (XLK) led all sectors with a 2.00% advance.
Stock Market Today: September 4, 2026 — The Day at a Glance
US stocks closed mixed-to-lower on Friday, September 4, 2026, with large-cap indexes slipping while small caps and technology stocks pushed higher. The S&P 500 fell 0.38% to 7,718.60, a decline of roughly 29 points, leaving the index up 12.54% year to date. The Nasdaq Composite lost 0.29% to close at 26,506.99, down about 77 points on the day and up 14.08% YTD. The Dow Jones Industrial Average was the weakest of the majors, sliding 0.51% — roughly 274 points — to 53,414.25, now up 10.40% in 2026. The Russell 2000 bucked the trend, adding 0.25% to finish at 2,975.65 and extending its year-to-date lead to +18.64%, the best of the four major benchmarks.
The dominant theme: a split market. Mega-cap indexes drifted lower even as the Technology sector ETF posted a 2.00% gain and small caps outperformed — a session defined more by rotation than by broad selling.
VIX, Treasury Yields, Dollar, Oil and Gold on September 4, 2026
The VIX rose 1.47% to 14.53, a low absolute reading that signals calm despite the down day in the S&P 500. The 10-year Treasury yield (^TNX) ticked up 0.46% to 4.78%, keeping pressure on rate-sensitive corners of the market. The US Dollar Index (DX-Y.NYB) firmed 0.16% to 99.16. In commodities, WTI crude (CL=F) was essentially flat, down 0.09% at $91.22, while gold (GC=F) slipped 0.32% to $4,477.20.
September 4, 2026 Sector Performance: Full Scorecard
Technology (XLK, +2.00%) was the clear leader, while Energy (XLE, -1.60%) was the biggest laggard despite remaining the top sector of 2026 at +40.33% YTD.
| Sector (ETF) | Today | YTD 2026 |
|---|---|---|
| Technology (XLK) | +2.00% | +29.79% |
| Industrials (XLI) | +1.44% | +10.94% |
| Utilities (XLU) | +0.96% | -0.23% |
| Financials (XLF) | +0.76% | +5.77% |
| Real Estate (XLRE) | +0.46% | +8.79% |
| Consumer Discretionary (XLY) | +0.04% | -2.91% |
| Communication Services (XLC) | -0.35% | -4.17% |
| Health Care (XLV) | -0.87% | +10.25% |
| Materials (XLB) | -0.96% | +13.70% |
| Consumer Staples (XLP) | -1.11% | +8.87% |
| Energy (XLE) | -1.60% | +40.33% |
September 4, 2026 Biggest Stock Movers
BLTE (Belite Bio) +13.16% to $193.61 — the top gainer on the day, leading a session where semiconductor and biotech names dominated the upside leaderboard.
AEHR (Aehr Test Systems) +13.10% to $86.26 — the semiconductor test-equipment maker jumped alongside a strong day for chip-linked names, with XLK up 2.00%.
SNDK (Sandisk) +11.90% to $1,740.00 — one of the largest single-day dollar gains on the board, extending the memory/storage trade.
CBRS (Cerebras Systems) +10.30% to $210.05 and COHU (Cohu) +10.31% to $50.72 — two more double-digit gainers, both tied to the semiconductor and AI-hardware complex that powered XLK's sector-leading day.
GWRE (Guidewire Software) -19.93% to $162.42 — the day's worst performer, shedding nearly a fifth of its value in a single session.
LULU (Lululemon) -17.38% to $100.61 — the athletic-apparel retailer broke below the $101 level in one of the most-watched single-stock collapses of the day.
FICO (Fair Isaac) -16.68% to $932.26 — a nearly $190 per-share decline, the largest dollar drop among today's losers.
PATH (UiPath) -16.63% to $15.19 and ASAN (Asana) -12.69% to $8.81 — enterprise software names rounded out the downside, with both stocks hitting low absolute price levels after double-digit percentage losses.
Days with this kind of dispersion — five stocks up 10%+ and five down 12%+ — are exactly the sessions worth reviewing in a trading journal; tools like TradeZella exist for logging what worked and what didn't.
What Moved the Stock Market September 4, 2026: Macro and Rates
No major economic prints or Fed events were in today's data set. The measurable macro story was rates: the 10-year Treasury yield rose to 4.78% (+0.46%), the dollar firmed to 99.16, and gold eased to $4,477.20. Defensive sectors were mixed — Utilities gained 0.96% while Consumer Staples fell 1.11% — and Energy pulled back 1.60% even with WTI crude essentially unchanged at $91.22.
What to Watch After September 4, 2026
- Sector follow-through: whether Technology's +2.00% day extends, or whether the rotation into small caps (Russell 2000 +0.25%, +18.64% YTD) broadens.
- The 10-year yield: at 4.78% and rising, further upside in rates would pressure the sectors that lagged today, including Staples (-1.11%) and Real Estate-adjacent names.
- Beaten-down software: Guidewire (-19.93%), UiPath (-16.63%), Asana (-12.69%) and FICO (-16.68%) — watch for stabilization or continuation after today's capitulation-style moves.
- Semiconductor momentum: SNDK, AEHR, COHU and CBRS all gained 10%+; follow-through in XLK (+29.79% YTD) remains the market's strongest 2026 trend alongside Energy (+40.33% YTD).
*Data as of the September 4, 2026 close, sourced from Yahoo Finance. This recap is for informational purposes only and is not investment advice.*