Basic Materials leads a quiet, mostly positive session as 2,003 of 3,703 stocks rise
The median US stock above $300M gained 0.16% on September 22, 2026. Viking Therapeutics jumped 35.6%, while Defence was the weakest sector.
Gains were broad but small. Of 3,703 US stocks with a market cap of at least $300M, 2,003 rose and 1,668 fell, and the median stock moved 0.16%. Weighted by market cap, the group gained 0.07%. Basic Materials led the sectors with a median gain of 3.27%, and 91.45% of its stocks advanced. Defence was the weakest sector at -2.47%, followed by Energy at -0.95%. Only 34.19% of these stocks trade above their 50-day moving average, compared with 52.81% above their 200-day average.
Health care produced the biggest moves among companies above $2B. Viking Therapeutics (VKTX) rose 35.6% and Butterfly Network (BFLY) 22.05%, while Xanadu Quantum Technologies (XNDU) fell 21.85%. MarketWall's engine flagged 747 stocks near their 200-day moving average and 203 with a Bollinger Band breakdown. Historically, stocks had a median return of 1.08% in the 20 sessions after a Bollinger Band breakdown, against 0.61% for any 20-session window. That describes the past, not what comes next.
Among chart patterns, DigitalBridge Group (DBRG) showed the strongest trendline support reading, and Franco-Nevada (FNV) and GFL Environmental (GFL) formed cup-and-handle patterns. Insider purchases were concentrated in a few names: eight insiders at Star Bulk Carriers (SBLK) made open-market purchases worth $6.92 million, and four insiders at GameStop (GME) added $21.71 million of shares.
Market breadth
3,703 US stocks with a market cap of at least $300M.
Sectors
Median daily change of the stocks in each sector (sectors with at least 10 stocks).
Biggest moves (market cap $2B+)
Technical signals
How many $300M+ stocks MarketWall's engine flagged, the strongest among $2B+ companies, and -- where available -- what the signal has historically done over the next 20 sessions compared with any 20-session window.
200 SMA Touch
747 stocksHistorically: median +0.58% over the next 20 sessions, higher 53% of the time (any 20-session window: +0.61%, 53%). Full track record →
BOLL Breakout
188 stocksHistorically: median +0.56% over the next 20 sessions, higher 53% of the time (any 20-session window: +0.61%, 53%). Full track record →
BOLL Breakdown
203 stocksHistorically: median +1.08% over the next 20 sessions, higher 55% of the time (any 20-session window: +0.61%, 53%). Full track record →
Volume Spike
6 stocksHistorically: median +0.85% over the next 20 sessions, higher 54% of the time (any 20-session window: +0.61%, 53%). Full track record →
Strongest chart patterns
| DBRG · DigitalBridge Group Inc. | Trendline Support |
| FNV · Franco-Nevada Corporation | Cup & Handle |
| GFL · GFL Environmental Inc. | Cup & Handle |
Insider cluster buying
Two or more insiders each buying $25K+ on the open market within 30 days, with a filing in the last two weeks (SEC Form 4).
| SBLK · Star Bulk Carriers Corp. | 8 insiders · $6.92M |
| GME · GameStop Corporation | 4 insiders · $21.71M |
| VIP · Vulcan Infrastructure and Power Inc. | 4 insiders · $5.30M |
| XBP · XBP Global Holdings Inc. | 4 insiders · $2.37M |
| RWT · Redwood Trust Inc. | 4 insiders · $928K |
| INBX · Inhibrx Biosciences Inc. | 3 insiders · $4.00M |
| BWMX · Betterware de Mexico S.A.P.I. de C.V. | 3 insiders · $2.29M |
| COO · The Cooper Companies Inc. | 3 insiders · $1.88M |
Computed by MarketWall from daily closing prices, its own signal engine and SEC Form 4 filings. The summary at the top is written by an AI model from these figures and checked so that it only uses numbers shown on this page. Historical figures describe the past, not the future. Not investment advice.