money is entering Arbitrum faster. Base is holding it better let's look at bridge traffic (7 days): ‣ 7d Bridge Inflow ➛ Arbitrum: $1.18B — Base: $415.63M ‣ 7d Bridge Outflow ➛ Arbitrum: $989.52M — Base: $381.63M ‣ 7d Net Flow ➛ Arbitrum: $190.92M — Base: $34M ‣ Net Flow / TVL ➛ Arbitrum: 15.3% — Base: 0.7% Arbitrum is pulling in 2.8x more bridge inflow than Base. net capital inflow is 5.6x higher. relative to its own size, the money entering Arbitrum is far more meaningful ➛ but when you look at existing accumulation the picture flips: ‣ Total TVL ➛ Arbitrum: $1.41B — Base: $4.67B ‣ USD Stablecoin Supply ➛ Arbitrum: $4.78B — Base: $3.68B ‣ 7d TVL Growth ➛ Arbitrum: +6.76% — Base: +2.02% Base has 3.7x Arbitrum's TVL. it's taking in less new capital but managing to hold what it has — and growing at 6.76% weekly versus Arbitrum's 2.02% ➛ so what does this mean? two different L2 growth strategies: ➛ Arbitrum's model: high turnover ‣ major institutional inflow wave with the Robinhood Chain launch (late June) ‣ DRIP incentive program ($40M) pumping active DeFi activity ‣ $1.18B bridge inflow in 7 days capital comes in, trades, but some leaves ‣ stablecoin supply below Base ($3.68B vs $4.78B) circulating capital is more "temporary" ➛ Base's model: low turnover, high accumulation ‣ users accustomed to staying on Base directly through Coinbase's distribution advantage ‣ 96% of x402 payments run on Base ‣ less bridge traffic ➛ capital arrives with less "exit" intent ‣ $4.78B stablecoin ➛ capital on Base is more in "hold and use" mode the difference between "enters fast" and "holds well" determines the next move Arbitrum's challenge: retaining incoming capital. $1.18B inflow ➛ $989.52M outflow ➛ 16.2% retention. of every $100 that comes in, $84 leaves Base's challenge: attracting new capital. growing existing $4.67B TVL with just $415M inflow requires higher volume bridge activity ➛ which of these two strategies is more sustainable? the answer depends on which phase you're in: growth phase (Arbitrum): high incentives + high inflow ➛ capturing market share maturation phase (Base): low incentives + high retention ➛ efficiently deploying accumulated capital there may be no winner in DeFi's L2 war. but there are two different growth dynamics and knowing which phase each chain is in matters more than deciding where to put your capital