# Token Pairs Being Monitored - Complete List

## Summary

The MEV bot discovers pools for **45 unique token pairs** across **10 major Arbitrum tokens**, resulting in **50-60+ individual pools** when accounting for multiple DEXes and fee tiers per pair.

---

## The 10 Tokens

| # | Symbol | Name | Address (Arbitrum) | Type |
|---|--------|------|--------------------|------|
| 1 | WETH | Wrapped Ether | 0x82af49447d8a07e3bd95bd0d56f35241523fbab1 | Base Asset |
| 2 | USDC | USD Coin | 0xaf88d065e77c8cc2239327c5edb3a432268e5831 | Stablecoin |
| 3 | USDT | Tether | 0xfd086bc7cd5c481dcc9c85ebe478a1c0b69fcbb9 | Stablecoin |
| 4 | ARB | Arbitrum | 0x912ce59144191c1204e64559fe8253a0e49e6548 | Governance |
| 5 | WBTC | Wrapped Bitcoin | 0x2f2a2543b76a4166549f7aab2e75bef0aefc5b0f | BTC Proxy |
| 6 | DAI | Dai Stablecoin | 0xda10009cbd5d07dd0cecc66161fc93d7c9000da1 | Stablecoin |
| 7 | LINK | Chainlink | 0xf97f4df75117a78c1a5a0dbb814af92458539fb4 | Oracle |
| 8 | UNI | Uniswap | 0xfa7f8980b0f1e64a2062791cc3b0871572f1f7f0 | Governance |
| 9 | GMX | GMX | 0xfc5a1a6eb076a2c7ad06ed22c90d7e710e35ad0a | Perps |
| 10 | GRT | The Graph | 0x9623063377ad1b27544c965ccd7342f7ea7e88c7 | Indexing |

---

## All 45 Token Pairs

### WETH Pairs (9)
1. **WETH/USDC** ⭐ - Highest volume pair
2. **WETH/USDT** ⭐ - High volume
3. **WETH/ARB** ⭐ - Arbitrum native
4. **WETH/WBTC** ⭐ - BTC-ETH correlation
5. WETH/DAI
6. WETH/LINK
7. WETH/UNI
8. **WETH/GMX** ⭐ - Popular on Arbitrum
9. WETH/GRT

### USDC Pairs (8)
10. **USDC/USDT** ⭐ - Stablecoin arbitrage
11. **USDC/ARB** ⭐ - High volume
12. USDC/WBTC
13. **USDC/DAI** ⭐ - Stablecoin trio
14. USDC/LINK
15. USDC/UNI
16. **USDC/GMX** ⭐ - GMX liquidity
17. USDC/GRT

### USDT Pairs (7)
18. **USDT/ARB** ⭐ - High volume
19. USDT/WBTC
20. **USDT/DAI** ⭐ - Stablecoin arbitrage
21. USDT/LINK
22. USDT/UNI
23. USDT/GMX
24. USDT/GRT

### ARB Pairs (6)
25. ARB/WBTC
26. ARB/DAI
27. ARB/LINK
28. ARB/UNI
29. **ARB/GMX** ⭐ - Both Arbitrum natives
30. ARB/GRT

### WBTC Pairs (5)
31. WBTC/DAI
32. WBTC/LINK
33. WBTC/UNI
34. WBTC/GMX
35. WBTC/GRT

### DAI Pairs (4)
36. DAI/LINK
37. DAI/UNI
38. DAI/GMX
39. DAI/GRT

### LINK Pairs (3)
40. LINK/UNI
41. LINK/GMX
42. LINK/GRT

### UNI Pairs (2)
43. UNI/GMX
44. UNI/GRT

### GMX Pairs (1)
45. GMX/GRT

---

## Why 50+ Pools from 45 Pairs?

Each token pair can have **multiple pools** across different:

### 1. DEX Protocols (6)
- **Uniswap V3** - Concentrated liquidity
- **Uniswap V2** - Classic AMM
- **SushiSwap** - Fork of V2
- **Camelot** - Arbitrum-native DEX
- **Curve** - Optimized for stablecoins
- **Balancer** - Multi-asset pools

### 2. Fee Tiers (Uniswap V3)
- **0.05%** - Stablecoin pairs
- **0.3%** - Most pairs (standard)
- **1%** - Exotic/volatile pairs

### Example: WETH/USDC Pools
```
Token Pair: WETH/USDC
├─ Uniswap V3 (0.05% fee) → Pool #1
├─ Uniswap V3 (0.3% fee)  → Pool #2
├─ Uniswap V3 (1% fee)    → Pool #3
├─ SushiSwap              → Pool #4
└─ Camelot                → Pool #5

Result: 1 pair = 5 pools
```

---

## High-Priority Pairs (⭐)

These pairs typically have the highest liquidity and trading volume:

| Rank | Pair | Why High Priority |
|------|------|-------------------|
| 1 | WETH/USDC | Highest volume, tightest spreads |
| 2 | WETH/USDT | Second highest volume |
| 3 | WETH/ARB | Native token, high activity |
| 4 | USDC/USDT | Stablecoin arbitrage opportunities |
| 5 | USDC/ARB | High ARB trading volume |
| 6 | USDC/DAI | Stablecoin triangular arbitrage |
| 7 | USDT/DAI | Additional stablecoin route |
| 8 | WETH/WBTC | BTC-ETH correlation trades |
| 9 | WETH/GMX | GMX is popular on Arbitrum |
| 10 | USDC/GMX | GMX primary liquidity |

---

## Discovery Process

### CREATE2 Calculation
For each token pair, the bot:
1. Calculates deterministic pool addresses using CREATE2
2. Checks all 6 DEX factory contracts
3. Validates pools exist on-chain
4. Fetches pool metadata (reserves, liquidity)
5. Caches valid pools to `data/pools.json`

### Pool Validation
```go
// For each token pair
for i := 0; i < len(tokenList); i++ {
    for j := i + 1; j < len(tokenList); j++ {
        // Discover all pools for this pair across all DEXes
        pools := DiscoverPoolsForTokenPair(token0, token1)

        // Could find 1-5 pools per pair
    }
}
```

---

## Expected Pool Distribution

| Pool Type | Count | Notes |
|-----------|-------|-------|
| Uniswap V3 (0.3%) | 20-25 | Most common |
| Uniswap V3 (0.05%) | 8-10 | Stablecoin pairs |
| Uniswap V3 (1%) | 3-5 | Volatile pairs |
| SushiSwap | 10-12 | Popular pairs |
| Camelot | 8-10 | Arbitrum native |
| Curve | 2-3 | Stablecoin only |
| **Total** | **50-65** | Varies by liquidity |

---

## Arbitrage Opportunities

### Two-Hop Arbitrage
Example: Price divergence between DEXes
```
Buy WETH on Uniswap V3 (0.3%) → Sell WETH on SushiSwap
```

### Triangular Arbitrage
Example: Multi-hop with price inefficiencies
```
USDC → WETH (Uniswap) → ARB (Camelot) → USDC (SushiSwap)
```

### Stablecoin Arbitrage
Example: Peg deviation trading
```
USDC → USDT (Curve 0.05%) → DAI (Uniswap) → USDC (SushiSwap)
```

---

## Monitoring Strategy

### Real-Time
- Listen for swap events on all 50+ pools
- Calculate price divergences across DEXes
- Detect arbitrage opportunities instantly

### Periodic
- Re-discover pools every 24 hours
- Update pool metadata (reserves, liquidity)
- Remove inactive/deprecated pools

### Dynamic
- Add new tokens as they gain volume
- Monitor for new pool deployments
- Adjust based on profitability data

---

## Mathematical Proof

**Combination Formula**:
```
C(n,k) = n! / (k! × (n-k)!)

For 10 tokens, choosing 2 at a time:
C(10,2) = 10! / (2! × 8!)
        = (10 × 9) / (2 × 1)
        = 45 unique pairs
```

**Pool Multiplier**:
```
45 pairs × 1.2 average pools per pair = ~54 pools
(Some pairs have 1 pool, some have 3-5)
```

---

## Future Expansion

### Short Term
- Add 5 more tokens (60 pairs → 75+ pools)
- Include Arbitrum Nova pairs
- Monitor USDC.e (bridged USDC) separately

### Long Term
- Cross-chain pairs (Arbitrum ↔ Ethereum)
- Exotic pairs with lower volume
- LP token arbitrage
- Options protocol integration

---

## References

- **Code**: `cmd/mev-bot/main.go:256-323`
- **Token Addresses**: `internal/tokens/arbitrum.go`
- **Pool Discovery**: `pkg/pools/discovery.go`
- **CREATE2 Calculation**: `pkg/pools/create2.go`

---

**Last Updated**: October 30, 2025
**Pool Count**: 45 pairs → 50-60+ pools
**Status**: Active Discovery Implemented