Bitcoin vs Rain
Bitcoin (BTC) ranks #1 by market capitalization at $1.68T and Rain (RAIN) ranks #13 at $7.3B, as of October 12, 2026. Bitcoin has a fixed maximum supply of 21.0M BTC; Rain has a fixed maximum supply of 1.1T RAIN. Bitcoin is available on 36 exchanges we have verified and Rain on 5; 5 list both.
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Side-by-Side
 Bitcoin |  Rain | |
|---|---|---|
| Market cap rank | #1 | #13 |
| Price | $83,810 | $0.0103 |
| Market cap | $1.68T | $7.3B |
| Fully diluted valuation | $1.68T | $11.8B |
| 24-hour volume | $18.5B | $11.7M |
| Circulating supply | 20.1M BTC | 709.3B RAIN |
| Maximum supply | 21.0M BTC | 1.1T RAIN |
| All-time high | $126,080 (October 6, 2025) | $0.0195 (August 25, 2026) |
| Change from all-time high | −33.5% | −46.9% |
| 7-day change | −1.9% | −8.9% |
| 30-day change | +8.7% | −32.2% |
| Category | layer-1 | DeFi |
| Chains | the Bitcoin network | the Arbitrum One network |
| Launched | 2009 | — |
Where You Can Buy Each
| Bitcoin | Rain | |
|---|---|---|
| Exchanges listing it | 36 | 5 |
| Countries and US states with a ranked buy page | 70 | 16 |
5 exchanges list both; 16 locations have a ranked buy page for both.
Frequently Asked Questions
- Which has the larger market cap, Bitcoin or Rain?
- Bitcoin, by about 229.8× as of October 12, 2026: $1.68T for Bitcoin against $7.3B for Rain.
- Does Bitcoin or Rain have a fixed supply?
- Both do. Bitcoin is capped at 21.0M BTC and Rain at 1.1T RAIN.
- Where can I buy both Bitcoin and Rain?
- 5 exchanges we have verified list both. Pick your location on the buy pages to see which serve you and what a $500 purchase costs.