If you've been wanting to build a position $BTC for a long time, but don't want to use price or moving averages as a basis for buying, you can use the "Coinbase $XRP Premium Index."
Green zone: Green usually means strong buying in the US $SOL and net inflows of funds.
Red zone: The US market lacks buying interest, and may even be under significant selling pressure.

1. US institutions and retail investors are in wait-and-see mode or reducing their positions.
2. Price support is weak. With the premium deeply negative at present, any price rebound appears to lack follow-through.
3. Caution in the short term: As long as the negative premium in the red zone hasn't narrowed and turned positive again, a strong market rally is unlikely.

However, this can also be a potential indicator for watching for a temporary bottom. Historical trends (such as in August 2024, March 2025, and early 2026) show that when the negative premium in the red zone falls to an extreme low of -3.5 to -4, it often means that most of the panic selling in the US market has already taken place. The key is then to watch for when the red line starts to "stop falling and rebound, moving toward the 0 axis."

How do you buy BTC?