- SPY
- Tracks the S&P 500, the 500 largest US companies. The standard read on the overall stock market.
- QQQ
- Tracks the Nasdaq-100, mostly big tech. Crypto often moves with it because both are growth-driven.
- IWM
- Tracks the Russell 2000, smaller US companies. Rises when investors are willing to take risk, which tends to line up with crypto rallies.
- GLD
- Tracks the price of gold. The classic safe-haven asset, and the one Bitcoin is most often compared to as a store of value.
- TLT
- Tracks 20+ year US Treasury bonds. Rises when interest rates fall, so it shows whether a crypto move lines up with rate expectations.
- UUP
- Tracks the US dollar against other major currencies. Crypto often moves opposite to the dollar, so a strong dollar week is usually a headwind.