best weekly performing stocks in s and p 500 ytd

Moderna (MRNA) had the best week since January 1, 2026 by a US stock in the S&P 500 (GSPC) the week of August 17, 2026, returning 124.1%.

ASSETWEEK% RETURN
Moderna (MRNA)
8/17/2026 - 8/23/2026
124.05%
Flex (FLEX)
5/4/2026 - 5/10/2026
53.85%
Coherent (COHR)
8/3/2026 - 8/9/2026
48.76%
Akamai Technologies (AKAM)
5/4/2026 - 5/10/2026
41.63%
Datadog (DDOG)
5/4/2026 - 5/10/2026
41.43%
Dell Technologies (DELL)
5/25/2026 - 5/31/2026
40.19%
Sandisk (SNDK)
8/10/2026 - 8/16/2026
36.37%
Lumentum (LITE)
2/2/2026 - 2/8/2026
36.13%
Palantir Technologies (PLTR)
8/3/2026 - 8/9/2026
35.76%
Honeywell Aerospace (HONA)
6/15/2026 - 6/21/2026
33.9%
Micron Technology (MU)
5/4/2026 - 5/10/2026
33.22%
Robinhood Markets (HOOD)
4/13/2026 - 4/19/2026
33.05%
Sandisk (SNDK)
1/5/2026 - 1/11/2026
32.79%
Marvell Technology (MRVL)
6/1/2026 - 6/7/2026
32.46%
Fortinet (FTNT)
5/4/2026 - 5/10/2026
31.86%
DaVita HealthCare Partners (DVA)
5/4/2026 - 5/10/2026
30.98%
Lumentum (LITE)
8/3/2026 - 8/9/2026
29.83%
DaVita HealthCare Partners (DVA)
2/2/2026 - 2/8/2026
29.13%
Bloom Energy (BE)
1/5/2026 - 1/11/2026
28.91%
Super Micro Computer (SMCI)
5/4/2026 - 5/10/2026
28.66%
Super Micro Computer (SMCI)
5/25/2026 - 5/31/2026
28.03%
Sandisk (SNDK)
3/9/2026 - 3/15/2026
27.97%
Sandisk (SNDK)
5/4/2026 - 5/10/2026
27.83%
Centene (CNC)
4/27/2026 - 5/3/2026
27.67%
Axon Enterprise (AXON)
2/23/2026 - 3/1/2026
27.25%