Short 941 Calls (Covered by DITM Calls)

Sell to open 4 contracts of 0941.HK $87.5 Jul 12 Call @ $1.13
Premium = $2260
交易時的正股價 = $86.3
4手0941 DITM Call平均成本 = $15.25 x 4 x 500 = $30500
項目回報率 = $2260/30500 = 7.41% (或 年度化 96.6%)
組合回報率 = $2260/2025380 = 0.11% (或 年度化 1.45%)
Option引伸波幅 = 18%
0941的30日歷史波幅 =20.94%
0941於7月30日前收低於$87.5的機會率 = 59.53%

Sell to open 4 contracts of 0941.HK $90 Jul 12 Call @ $0.50
Premium = $1000
交易時的正股價 = $86.5
4手0941 DITM Call平均成本 = $15.25 x 4 x 500 = $30500
項目回報率 = $1000/30500 = 3.27% (或 年度化 42.7%)
組合回報率 = $1000/2025380 = 0.049% (或 年度化 0.64%)
Option引伸波幅 = 18%
0941的30日歷史波幅 = 20.94%
0941於7月30日前收低於$90的機會率 = 75.65%

Sell to open 10 contracts of 0006.HK $60 Jul 12 Call @ $0.25
Premium = $1250
交易時的正股價 = $58.5
10手0006正股平均成本 = $57.5 x 10 x 500 = $287500
項目回報率 = $1250/287500 = 0.43% (或 年度化 5.67%)
組合回報率 = $1250/2025380 = 0.06% (或 年度化 0.80%)
Option引伸波幅 = 12%
0006的30日歷史波幅 = 18.75%
0006於7月30日前收低於$60的機會率 = 68.97%

大市回升，市場風險意識大減。
現時引伸波幅正處於低位，回報偏低。　
策略是先short一部份，再等待更佳機會short put/call。