Uniswap V4 launched in October 2025 with the hooks framework that was supposed to let Uniswap finally eat Curve's lunch on stablecoin swaps. Six months in: V4 stable-swap hooks did $2.4B daily across Q1 2026. Curve did $42B daily. So V4 captured ~5.4% of the combined market.
That's not failure — $2.4B daily is a real DEX volume number. But it's also not the disruption a lot of Uniswap maximalists predicted. Curve held more share than I expected and V4 hooks captured less than initial projections suggested.
The interesting part is why. Curve's structural advantages aren't about pricing curve math (Uniswap can replicate that via hooks). They're about the veCRV gauge economics that produce structural LP yield premiums Uniswap V4 hooks don't match. Below is the actual volume breakdown, the reason the structural edge held, and the specific cases where V4 hooks now win.
What V4 Hooks Actually Captured
V4 stable-swap hook daily volume in Q1 2026, by pair:
| Pair | Daily volume | Share of V4 hook stables |
|---|---|---|
| USDC-USDT | $1.2B | 50% |
| USDC-DAI | $0.4B | 17% |
| USDT-DAI | $0.3B | 12% |
| USDC-USDS | $0.3B | 12% |
| Other (smaller stables) | $0.2B | 9% |
Total: $2.4B daily.
The USDC-USDT concentration (50%) reflects where the institutional flow lives. That pair is the highest-volume stablecoin pair globally and V4 hooks captured a meaningful share specifically because routing-aggregator integration of V4 was clean from launch.
Curve, by comparison:
| Curve pool | Daily volume |
|---|---|
| 3pool (USDC/USDT/DAI) | $24B |
| Other major stable pools (FRAX, sUSDS, etc.) | $14B |
| Specialized pools (GHO, sDAI, frxUSD, etc.) | $4B |
So Curve does roughly 17x V4 hook volume on stablecoin swaps. The market hasn't shifted nearly as much as the V4 launch hype suggested it would.
Why Curve's Moat Held
Three structural reasons V4 hooks didn't dominate:
veCRV gauge economics produce structural LP premium. Curve's stablecoin pools earn LP yields of approximately 4-8% APY because veCRV holders direct CRV emissions to specific pools through governance. V4 hooks' LP yields on equivalent pools run approximately 2-5% APY without the equivalent emission incentive structure. So a stablecoin LP comparing the two protocols sees materially better returns on Curve.
That LP yield differential matters because it determines liquidity depth. Curve has deeper books on every major stablecoin pair because LPs prefer Curve. Deeper books produce tighter spreads. Tighter spreads produce better swap execution. Better swap execution attracts more flow. The flywheel runs in Curve's favor.
V4 hooks could theoretically replicate this with their own emission structure, but Uniswap governance hasn't deployed that capital. The hooks framework is technically capable; the political/economic decision to use Uniswap treasury for stable-swap LP rewards hasn't happened.
Routing aggregator preferences. 1inch, 0x, Paraswap, and other aggregators route stablecoin swaps based on best execution. Their algorithms see Curve's tighter spreads on standard $5K-$50K orders and route there. V4 hooks need to be materially better than Curve to capture aggregator-routed flow, and they're not — they're competitive but not better.
Stablecoin issuer relationships. Circle, Tether, MakerDAO/Sky have deeper structural integration with Curve through years of governance participation, liquidity provisioning agreements, and gauge weight commitments. Sky specifically directs portion of USDS supply to Curve pools as part of stablecoin liquidity strategy. V4 hooks don't have those relationships at equivalent depth. Issuer-driven liquidity sticks where the relationships exist.
Where V4 Hooks Actually Won
V4 hooks captured some specific use cases that matter:
Multi-hop swaps that include stablecoin legs. When a trader wants to swap ETH→USDC→arbitrary token, the routing engine sees that V4 can do all three steps in one pool architecture. Curve requires two separate protocol hops. For multi-hop strategies the operational efficiency favors V4 even when the stablecoin leg's pricing is slightly worse.
New stablecoin pair listing speed. Curve's pool deployment process goes through governance which takes 4-8 weeks. V4 hooks can list a new stablecoin pair in 24-48 hours. For new stablecoin issuances (RLUSD, USDM, smaller projects), V4 hooks captured first-mover advantage on listing pairs. Curve eventually adds them but V4 has the head start.
Cross-pool arbitrage. The structural yield differential between V4 hook pools and Curve pools creates ~$0.4-0.6B daily in arbitrage volume across Q1 2026. Sophisticated arbitrageurs running both venues capture small spreads. This is real volume but most of it is professional MEV/arbitrage rather than retail flow.
What I Actually Use for Stablecoin Swaps
For stablecoin swaps in my DeFi flow:
- ~75-80% Curve for any swap above ~$10K size on standard stablecoin pairs
- ~10-15% V4 hooks for multi-hop swaps that include stablecoin legs as part of broader strategies, or for new stablecoin pairs not yet on Curve
- ~5-10% direct CEX when I'm already on the CEX side and don't need DeFi composability
For retail-scale stablecoin swaps (under $5K), the differential between Curve and V4 hooks is small enough that operational simplicity (whichever wallet you're using has the cleaner UX) matters more than the spread.
The UNI Token Capture Math
Uniswap protocol holders care about how much fee revenue V4 hooks capture. The math:
- $2.4B daily V4 hook stablecoin volume
- ~0.05% average fee on stablecoin swaps (lower than non-stable pairs because spreads are tight)
- → ~$1.2M daily fee revenue
- → ~$440M annualized
Of that, protocol-level fee accrual is 10-25% depending on hook configuration. So roughly $50-110M annualized accrues to Uniswap protocol governance for distribution.
That's meaningful but not transformational for UNI tokenomics. It's roughly 5-10% of Uniswap's total fee capture. The hooks framework is structurally important for Uniswap long-term, but the stable-swap specific contribution is moderate.
Where This Goes
V4 stable-swap hook trajectory through end-2026 will probably push to $4-6B daily volume — meaningful growth but unlikely to challenge Curve's structural dominance.
The structural barrier is the LP economics flywheel. For V4 hooks to actually displace Curve, Uniswap governance would need to direct material UNI emissions or treasury allocation to stable-swap LP rewards. That hasn't happened and probably won't in 2026. So the dynamic is: V4 hooks grow gradually, Curve stays dominant, both protocols coexist in different competitive positions.
For a trader betting on DEX competitive dynamics: long-term Curve maintains structural advantage on stablecoin volume; long-term Uniswap captures broader DeFi composability share. The two protocols compete in adjacent rather than directly overlapping markets.
How to Pick Your Stablecoin DEX
Decision framework I use:
If you're swapping $10K+ in standard stablecoin pairs: Curve. Tighter spreads, better execution.
If your swap is part of a multi-hop strategy with non-stable legs: Use whatever DEX aggregator routing recommends — it'll often pick V4 hooks for the operational efficiency.
If you're providing liquidity: Curve, by a wide margin. The veCRV gauge economics make Curve LP yields meaningfully better than V4 hook equivalents.
If you need a new stablecoin pair that just launched: V4 hooks, until Curve adds it.
If you're doing $200K+ swaps and care about minimizing market impact: Split between Curve and V4 hooks via DEX aggregator. Curve takes most of it but V4 hooks fill the rest at acceptable spread.
Caveats
The volume numbers are from DeFi Llama and Uniswap analytics through April 2026 — V4 specific volume tracking is still imperfect because hooks decompose pools in ways that traditional volume aggregation doesn't always capture cleanly. The 5.4% market share is approximation that depends on which time window you sample. The veCRV economics description is correct but Curve's incentive system is complex enough that simplified explanations leave out nuances. The protocol fee accrual range (10-25%) varies based on specific hook configuration; some hooks have different fee structures. None of this is investment advice — DEX selection depends on your specific use case and the market conditions when you're actually executing swaps.