定价: 0.01 USDC (x402支付) 标签: crypto, trading, kelly-formula, position-sizing, risk-management 作者: Rich (@samhuang2025)
基于凯利公式的加密货币仓位计算工具,帮助交易者用数学纪律替代情绪化决策。
核心功能:
本skill支持x402微支付协议。调用时自动发起0.01 USDC支付请求。
bash
# x402支付示例
curl -X POST https://api.x402.dev/pay \
-H "Content-Type: application/json" \
-d '{
"to": "0x24b288c98421d7b447c2d6a6442538d01c5fce22",
"amount": "0.01",
"currency": "USDC",
"memo": "kelly-formula-skill"
}'
text
f* = (bp - q) / b
text
f* ≈ 2p - 1
记忆法:胜率高出50%的部分×2 = 建议仓位
输入:
输出:
python
def kelly_position(p, b, fraction=0.5):
if p <= 0.5:
return 0 # 无优势,不做
f_star = (p * b - (1 - p)) / b
if f_star < 0:
return 0
return f_star * fraction
胜率全凯利½凯利¼凯利52%4%2%1%55%10%5%2.5%60%20%10%5%65%30%15%7.5%70%40%20%10%75%50%25%12.5%
原则:相关性>0.7时,合并仓位打7折
python
def adjusted_position(positions, correlation, discount=0.7):
total = sum(positions)
if correlation > 0.7:
return total * discount
return total
python
def leverage_safety(liquidation_distance, stop_loss):
safety_factor = liquidation_distance / stop_loss
if safety_factor < 2:
return "不安全,建议降杠杆"
return "安全"