Possible hedge against SSO exposure
A nice long/short dynamic between these two factors
Indicate trend in spread between S&P500 and Commodities Index
SPY vs EM - help indicate future trends by following the spread between the two markets
Allows one to see the status of the 4 Trend Signals for $SPY-$SSO trend strategy.
Show's value of BTC vs. USD. Easiest way to spot moves in Crypto.
Allows one to easily see whether SPY advances/declines is driven by market breadth