Most arbitrage articles explain how to find an opportunity. Far fewer cover how to manage money once you're trading. Yet this is where most profit disappears: poor capital allocation, missing loss limits, oversized positions.
This article is a practical capital management guide specifically for arbitrageurs.
Principle 1: Separate Trading and Cold Capital
Never put into arbitrage money you can't afford to lose. This isn't a cliché — it's risk mathematics.
Total crypto capital structure:
| Purpose | Share | Where to keep |
|---|---|---|
| Trading capital (arbitrage) | 20–40% | On exchanges |
| Long-term holdings | 30–50% | Cold wallet, staking |
| Reserve (stablecoins) | 20–30% | Non-custodial wallet |
Trading capital is what you're prepared to lose completely without critical consequences. Exchange storage always carries counterparty risk.
Principle 2: Allocating Trading Capital Across Exchanges
If trading capital is $10,000 — how to split between exchanges?
Model for 3 exchanges (Binance, Bybit, OKX):
| Exchange | USDT | Coin A (ETH) | Coin B (SOL) | Total |
|---|---|---|---|---|
| Binance | $1,500 | 0.5 ETH ($1,240) | — | ~$2,740 |
| Bybit | $1,500 | 0.5 ETH ($1,240) | 5 SOL ($710) | ~$3,450 |
| OKX | $1,500 | — | 5 SOL ($710) | ~$2,210 |
| Reserve | $600 | — | — | $600 |
Allocation logic:
- Each exchange holds 25–35% of capital
- Coins distributed so each exchange pair has both USDT and the coin for balance arbitrage
- 5–10% reserve for rebalancing and emergencies
Never keep >50% of capital on a single exchange.
Principle 3: Position Size Per Trade
| Strategy | Optimal size | Maximum |
|---|---|---|
| Cross-exchange (beginner) | 20–30% of working capital | 40% |
| Balance arbitrage | 25–35% | 50% |
| Triangular | 30–50% | 60% |
| P2P | 30–50% | 70% |
Why not 100%? All capital in one trade means a technical failure or sudden price move during execution leads to maximum loss.
Why not 5%? Too small — doesn't justify the monitoring and execution time.
Principle 4: Loss Limits
Loss limits are pre-defined rules at which trading automatically stops. They protect against loss streaks and technical failures.
Daily Loss Limit
The amount of daily losses at which you stop trading until the next day.
Calculation: 2–3% of trading capital.
Example at $10,000 capital:
- Daily limit: $200–300
- If you've lost $250 today — stop, analyze what went wrong
Per-Trade Stop
Calculation: 0.5–1% of trading capital.
At $10,000 — maximum $50–100 loss per trade. If execution went wrong and losses hit this level — exit immediately.
Period limits
| Period | Loss limit |
|---|---|
| Day | 2–3% |
| Week | 5–7% |
| Month | 10–15% |
Principle 5: Profit Reinvestment
Rule: increase capital only after demonstrated consistent profitability.
Criteria for increasing by 25–50%:
- 3 consecutive profitable months
- Monthly return consistently above 5%
- No technical execution issues
- Complete trade records maintained
Reinvestment pace: no more than 50% of profit reinvested back into trading. The rest — withdrawn or moved to long-term holdings.
Principle 6: Strategy Diversification
Example at $20,000 trading capital:
| Strategy | Capital | Share |
|---|---|---|
| Balance arbitrage (ETH, SOL) | $8,000 | 40% |
| P2P arbitrage | $6,000 | 30% |
| Active cross-exchange | $4,000 | 20% |
| Reserve/experimental | $2,000 | 10% |
P2P works independently of CEX spreads. Balance arbitrage works independently of directional volatility. Together they provide more stable combined results.
Conclusion
Capital management separates the consistently profitable arbitrageur from those who earn periodically and lose during difficult periods. Three core rules:
- Never concentrate more than 50% of capital on one exchange
- Set a daily loss limit and strictly observe it
- Log every trade — without data, there's no management
Monitor opportunities in SpreadScan →
FAQ
How many exchanges are minimum for diversification? 2–3 exchanges is sufficient to start. More than 5 without automation is difficult to manage.
Can I start with $500 with proper capital management? Yes, for P2P arbitrage. For CEX-CEX with transfers — $1,000–1,500 minimum for reasonable operation after fees.
How often should I review capital allocation? Monthly for planned review. Ad-hoc when loss limits are hit or market conditions change significantly.