what is the best stock performance in 2021 in spy

The top 3 holdings of SPY are NVIDIA (NVDA) (7.944%), Apple (AAPL) (6.782%) and Microsoft (MSFT) (6.717%).

FUNDHOLDING% OF FUNDVALUE ($)
SPY
NVIDIA (NVDA)
7.944%
$54.9B
SPY
Apple (AAPL)
6.782%
$46.9B
SPY
Microsoft (MSFT)
6.717%
$46.5B
SPY
Amazon (AMZN)
3.745%
$25.9B
SPY
Broadcom (AVGO)
2.895%
$20B
SPY
Facebook (META)
2.769%
$19.2B
SPY
Alphabet Inc Class A (GOOGL)
2.663%
$18.4B
SPY
Tesla (TSLA)
2.158%
$14.9B
SPY
Alphabet Inc Class C
2.143%
$14.8B
SPY
Berkshire Hathaway (BRK.B)
1.522%
$10.5B
SPY
JPMorgan Chase (JPM)
1.422%
$9.8B
SPY
Eli Lilly and (LLY)
1.117%
$7.7B
SPY
Visa Inc Class A (V)
1.004%
$6.9B
SPY
Exxon Mobil (XOM)
0.84%
$5.8B
SPY
Mastercard (MA)
0.803%
$5.6B
SPY
Oracle (ORCL)
0.793%
$5.5B
SPY
Netflix (NFLX)
0.791%
$5.5B
SPY
Walmart (WMT)
0.78%
$5.4B
SPY
Johnson & Johnson (JNJ)
0.779%
$5.4B
SPY
Palantir Technologies Inc. Class A Common Stock
0.731%
$5.1B
SPY
Advanced Micro Devices (AMD)
0.716%
$5B
SPY
Costco Wholesale (COST)
0.701%
$4.8B
SPY
AbbVie (ABBV)
0.685%
$4.7B
SPY
Home Depot (HD)
0.652%
$4.5B
SPY
Bank of America (BAC)
0.614%
$4.2B
Holdings are tracked for approximately 2000 ETFs.