S&P 500 Movers | Winners: PTC, ILMN, CRL | Losers: CHRW, LEN, CMG
On Monday, October 5, the S&P 500 gained 0.7%, the Nasdaq-100 advanced 0.9% and the Dow Jones Industrial Average ticked up 0.2%. Over the past week the S&P 500 is up 1.2%, and over the past month it is up 0.3%.
Gainers outnumbered decliners 316 to 185 within the S&P 500. At the extremes, PTC gained 33.5% and C.H. Robinson Worldwide (CHRW) fell 10.8%.

Monday’s S&P 500 Winners
The 10 S&P 500 stocks with the highest returns on Monday:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | PTC | PTC | 33.5% | 10.4% |
| 2 | ILMN | Illumina | 7.6% | 123.9% |
| 3 | CRL | Charles River Laboratories International | 7.1% | 55.8% |
| 4 | MRNA | Moderna | 6.9% | n/a |
| 5 | WDC | Western Digital | 6.3% | 156.6% |
| 6 | APP | AppLovin | 5.1% | -58.2% |
| 7 | GPN | Global Payments | 4.8% | 7.2% |
| 8 | NUE | Nucor | 4.6% | 55.4% |
| 9 | ADSK | Autodesk | 4.5% | -25.2% |
| 10 | STX | Seagate Technology | 4.5% | 223.2% |
Monday’s S&P 500 Losers
And the 10 S&P 500 stocks with the lowest returns on Monday:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | CHRW | C.H. Robinson Worldwide | -10.8% | -11.6% |
| 2 | LEN | Lennar | -6.7% | -26.4% |
| 3 | CMG | Chipotle Mexican Grill | -4.7% | -16.6% |
| 4 | BMY | Bristol-Myers Squibb | -3.8% | 13.9% |
| 5 | DOC | Healthpeak Properties | -3.3% | 23.0% |
| 6 | MRK | Merck | -3.3% | 35.3% |
| 7 | VTR | Ventas | -3.2% | 7.1% |
| 8 | ARE | Alexandria Real Estate Equities | -3.1% | -2.1% |
| 9 | GLW | Corning | -2.9% | 83.0% |
| 10 | INTC | Intel | -2.6% | 214.9% |
For A Few Names, Monday Extended A Monthly Trend
The 7.6% gain in Illumina (ILMN) on Monday was not a one-off: the stock is up 32.5% over the past month, and up 23.2% over the sessions before Monday.
Moderna (MRNA) appears on both the one-day and one-month winners lists. It rose 6.9% on Monday and is up 36.5% over the past month; excluding Monday, it had already gained 27.6% over the other sessions.
PTC is also on the one-month winners list (up 28.1%), but that move came almost entirely from Monday: over the rest of the month the stock was down 4.0%.
Movers Over The Last Week
Widening the window to five trading days, these are the strongest and weakest names in the S&P 500:
Winners
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | PTC | PTC | 37.6% | 10.4% |
| 2 | LITE | Lumentum | 18.5% | 196.2% |
| 3 | COHR | Coherent | 18.1% | 80.8% |
| 4 | SNPS | Synopsys | 17.0% | 4.0% |
| 5 | CCL | Carnival Corporation | 15.4% | -15.0% |
| 6 | ON | ON Semiconductor | 13.6% | 58.7% |
| 7 | RCL | Royal Caribbean | 13.4% | 0.2% |
| 8 | CIEN | Ciena | 13.2% | 66.6% |
| 9 | ACN | Accenture | 11.8% | -25.4% |
| 10 | AMAT | Applied Materials | 11.4% | 111.8% |
Losers
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | FICO | Fair Isaac | -18.0% | -59.2% |
| 2 | LEN | Lennar | -9.3% | -26.4% |
| 3 | INCY | Incyte | -8.6% | 15.6% |
| 4 | APP | AppLovin | -8.5% | -58.2% |
| 5 | LULU | Lululemon Athletica | -7.4% | -55.2% |
| 6 | KHC | Kraft Heinz | -7.3% | -5.3% |
| 7 | JNJ | Johnson & Johnson | -7.0% | 24.2% |
| 8 | BMY | Bristol-Myers Squibb | -7.0% | 13.9% |
| 9 | NKE | Nike | -6.7% | -45.3% |
| 10 | DOC | Healthpeak Properties | -6.3% | 23.0% |
Movers Over The Last Month
And over the last 21 trading days, the strongest and weakest names in the S&P 500:
Winners
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | P | Everpure | 46.6% | n/a |
| 2 | AMD | Advanced Micro Devices | 38.5% | 195.0% |
| 3 | MRNA | Moderna | 36.5% | n/a |
| 4 | ILMN | Illumina | 32.5% | 123.9% |
| 5 | TER | Teradyne | 31.3% | 129.9% |
| 6 | MRVL | Marvell Technology | 29.9% | 219.7% |
| 7 | LITE | Lumentum | 28.8% | 196.2% |
| 8 | DDOG | Datadog | 28.7% | 103.3% |
| 9 | PTC | PTC | 28.1% | 10.4% |
| 10 | CRWD | CrowdStrike | 26.8% | 132.7% |
Losers
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | FICO | Fair Isaac | -38.4% | -59.2% |
| 2 | GEN | Gen Digital | -28.9% | -16.8% |
| 3 | CHTR | Charter Communications | -28.8% | -48.4% |
| 4 | MGM | MGM Resorts International | -26.6% | -17.3% |
| 5 | EFX | Equifax | -24.6% | -33.7% |
| 6 | LULU | Lululemon Athletica | -23.5% | -55.2% |
| 7 | AXON | Axon Enterprise | -23.5% | -27.5% |
| 8 | ALB | Albemarle | -20.8% | -25.6% |
| 9 | PAYX | Paychex | -20.2% | -8.0% |
| 10 | FIS | Fidelity National Information Services | -19.7% | -47.9% |
The Tape Rewards Attention. It Punishes Reaction
Big daily moves pull hard at both greed and fear, and acting on either, day after day, is how most portfolios end up trailing the index they were trying to beat.
The Trefis High Quality (HQ) Portfolio is built for the opposite reflex: about 30 quality businesses screened for the fundamentals that survive volatile stretches, held with rules instead of reactions. It has a track record of outpacing a benchmark that combines the S&P 500, the S&P MidCap 400, and the Russell 2000. Read the movers daily; trade them rarely.