best performing sandp500 stock first week january

Sandisk (SNDK) had the best week in January 2026 by a US stock in the S&P 500 (GSPC) the week of January 5, 2026, returning 32.8%.

ASSETWEEK% RETURN
Sandisk (SNDK)
1/5/2026 - 1/11/2026
32.79%
Bloom Energy (BE)
1/5/2026 - 1/11/2026
28.91%
Moderna (MRNA)
1/12/2026 - 1/18/2026
21.6%
Sandisk (SNDK)
1/26/2026 - 2/1/2026
20.94%
Deckers Outdoor (DECK)
1/26/2026 - 2/1/2026
20.69%
Moderna (MRNA)
1/19/2026 - 1/25/2026
18.44%
Albemarle (ALB)
1/19/2026 - 1/25/2026
17.42%
Seagate Technology (STX)
1/26/2026 - 2/1/2026
16.87%
Lumentum (LITE)
1/26/2026 - 2/1/2026
16.01%
Bloom Energy (BE)
1/12/2026 - 1/18/2026
15.27%
Advanced Micro Devices (AMD)
1/12/2026 - 1/18/2026
15.24%
Microchip Technology (MCHP)
1/5/2026 - 1/11/2026
15.1%
Carvana (CVNA)
1/5/2026 - 1/11/2026
15.02%
Sandisk (SNDK)
1/19/2026 - 1/25/2026
14.96%
Advanced Micro Devices (AMD)
1/19/2026 - 1/25/2026
14.86%
Lam Research (LRCX)
1/5/2026 - 1/11/2026
14.85%
Lennar (LEN)
1/5/2026 - 1/11/2026
14.81%
Western Digital (WDC)
1/12/2026 - 1/18/2026
14.48%
Southwest Airlines (LUV)
1/26/2026 - 2/1/2026
13.49%
Aptiv (APTV)
1/5/2026 - 1/11/2026
13.3%
KLA (KLAC)
1/12/2026 - 1/18/2026
13.07%
Royal Caribbean Cruises (RCL)
1/26/2026 - 2/1/2026
12.86%
Sandisk (SNDK)
12/29/2025 - 1/4/2026
12.64%
Texas Instruments (TXN)
1/26/2026 - 2/1/2026
12.23%
Verizon Communications (VZ)
1/26/2026 - 2/1/2026
12.2%