American stocks ETF

1. https://www.google.com/finance/related?q=NYSEARCA%3ASPY&ei=tT4oVvnILtGhuATkq7rQBw
2. https://www.google.com/finance?q=NYSEARCA%3AXLK&ei=HUAoVomjK8mZuASZtJ1Q
3. https://www.google.com/finance/related?q=NYSEARCA%3AXLK&ei=f0AoVtmwAovjugT-qZfADQ
4. https://www.google.com/finance?q=NYSEARCA%3AXLK&ei=HUAoVomjK8mZuASZtJ1Q