How safe is the QQQ ETF compared to SPY? Right now, those two ETF's are highly correlated, but can that change (e.g., one goes up 10% one year but another goes down

How safe is the QQQ ETF compared to SPY? Right now, those two ETF's are highly correlated, but can that change (e.g., one goes up 10% one year but another goes down 10% in the same year)? - Quora

How safe is the QQQ ETF compared to SPY? Right now, those two ETF's are highly correlated, but can that change (e.g., one goes up 10% one year but another goes down

How safe is the QQQ ETF compared to SPY? Right now, those two ETF's are highly correlated, but can that change (e.g., one goes up 10% one year but another goes down 10% in the same year)? - Quora

How safe is the QQQ ETF compared to SPY? Right now, those two ETF's are highly correlated, but can that change (e.g., one goes up 10% one year but another goes down

How safe is the QQQ ETF compared to SPY? Right now, those two ETF's are highly correlated, but can that change (e.g., one goes up 10% one year but another goes down 10% in the same year)? - Quora

How safe is the QQQ ETF compared to SPY? Right now, those two ETF's are highly correlated, but can that change (e.g., one goes up 10% one year but another goes down