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Pick any two coins to see their prices, market caps, supply, and historical performance side-by-side. Click either card to switch coins.
Optimism vs Bitcoin
Lines are normalized to the % change from the start of the visible range, so coins with very different prices stay visually comparable.
| Metric |  OP |  BTC |
|---|---|---|
| Price (USD) | $0.086118 | $63,630.91 |
| Market cap | $197.04M | $1.28T |
| 24h volume | $31.25M | $22.78B |
| Market cap rank | #119 | #1 |
| 1h change | +0.39% | +0.15% |
| 24h change | -5.04% | -0.07% |
| 7d change | -1.79% | -1.55% |
| 30d change | -13.45% | +1.50% |
| All-time high | $4.84 | $126,080.00 |
| % from ATH | -98.22% | -49.53% |
| Circulating supply | 2.29B OP | 20.07M BTC |
| Max supply | 4.29B OP | 21M BTC |
| Listed exchanges | 20 | 0 |
Popular comparisons
How to compare cryptocurrencies
Market cap, not price. A coin priced at $0.10 isn't “cheaper” than one at $100 — price alone ignores how many coins exist. Market cap (price × circulating supply) is what actually ranks two coins against each other, and it's the first number to compare.
Supply matters. Compare circulating supply against max supply. A coin with most of its supply already circulating faces less future sell pressure from unlocks and emissions than one with a large share still to be released.
Volume shows real activity. 24-hour trading volume relative to market cap indicates how actively a coin trades and how easily you can buy or sell it. Consistently thin volume means bigger spreads and more volatile moves in both directions.