How it works

Two ways to ask “what if”. Here’s an example with ETH and BTC.

Market cap

What if ETH had BTC's market cap?

We give ETH the same market cap as BTC, then divide by the supply used for ETH. NOW uses the current market cap of BTC; ATH uses its historical high.

Peak ratio

What if ETH hit its peak BTC ratio?

We find the highest recorded ETH/BTC price ratio in our available daily history, then apply it to the price of BTC today. This shows what one ETH would cost if it regained that relative strength.

Use the question below your result to flip between the two modes.

What if A had B's market cap?

Select A
Select B
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$1/day·$5/day on top of another coin 😈
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ARB vs MORPHO market cap comparison

As of Sep 19, 2026, if Arbitrum (ARB) had Morpho's (MORPHO) market cap of $1.81B, one ARB would be worth $0.2666, 1.28x its current price of $0.2078.

At Morpho's all-time-high market cap of $2.91B (Jan 17, 2025), ARB would be worth $0.4292 (2.07x).

Morpho is 1.28x the size of Arbitrum by market cap. The rank gap between them is 9 places.

The gap between ARB and MORPHO narrowed 11.9% since Sep 18, 2026.

MetricArbitrum (ARB)Morpho (MORPHO)
Price (USD)$0.2078$2.59
Market cap (USD)$1.41B$1.81B
Market cap rank#63#54
Circulating supply6.79B ARB698.88M MORPHO
24h change-6.62%+7.25%

Price of Arbitrum at Morpho's market cap: ($1.81B ÷ $1.41B) × $0.2078 = $0.2666.

Questions

What would ARB be worth with Morpho's market cap?
Arbitrum (ARB) would be worth $0.2666 per coin with Morpho's market cap of $1.81B. That is 1.28x its price of $0.2078 on Sep 19, 2026.
How many times would ARB need to grow to reach Morpho's market cap?
Arbitrum would need to grow 1.28x. Its market cap is $1.41B and Morpho's market cap is $1.81B.
How is the ARB price at MORPHO's market cap calculated?
Price of Arbitrum at Morpho's market cap: ($1.81B ÷ $1.41B) × $0.2078 = $0.2666.

Data provided by CoinGecko. Refreshed daily. Last update Sep 19, 2026.