新手學期權，有野唔明(short call)

新手唔好玩short option, 講完, 以前做過2號牌

想接貨用sp應該冇乜問題姐？

想接貨用long call 好過, short put 係unlimited risk 尤其你無現貨

利申: 1,2 號牌都拿過

sorry 唔係unlimited, 係risk to stock price 0

可以
但一般建議唔好naked short
因為如果到價
你係需要借錢買貨(如果冇貨)
再賣出去
同埋你呢張call係25/6到期先啱
建議你再學多陣先
Short side理論上嚟講係可以輸無限的

short put 最差係要買貴貨填倉

最差係short squeeze,市場無貨借/買

咁正常玩家都會covered short, 尤其是股票期權

期貨期權就唔同wo 你交易時間接近24小時

現貨有幾多先咁玩sc

Sp唔係想買貨咩 點解會關有冇貨先
唔識

如果我唔介意呢？我有目標價，點都會買
佢再跌我再溝

無論你係現金買貨、long call接貨定係short put接貨，只要你有貨喺手都會有股價跌到零嘅風險。

你覺得long call limited risk, short put unlimited risk/risk to stock price 0，所以long call好過short put係因為你只係考慮張option嘅賺蝕，但係由接貨之後成個portfolio去睇，同樣都有股價跌到零嘅風險。

long call接貨我要比premium
short put接貨我就收premium
我唔明點解會用long call接貨？

short option 大risk 過long 係因為obligation ,你開得liquidity 中左就一定硬食, long option 你中左係可以manage得切

short put 的fatality risk 係oligation to be exercised and stock price to 0

而且重點係risk - profit ratio

A naked put strategy is inherently risky because of the limited upside profit potential and, theoretically, a significant downside loss potential.

美股本身有Circuit Breaker

當你接貨前你考慮option risk 就得

接貨後跌去0 /升去無限係大家一樣

Naked shorting is the illegal practice of short selling shares that have not been affirmatively determined to exist. Ordinarily, traders must borrow a stock, or determine that it can be borrowed before they sell it short. Due to various loopholes in the rules, and discrepancies between paper and electronic trading systems, naked shorting continues to happen.

基本上劵商係你就到期前一定會查你戶口夠唔夠錢接貨

一開始大家討論緊「想接貨應該用short put定long call？」
我就投short put一票，因為實際入貨價會低啲，你揀long call係因為就算喺到期日之前突然改變心意唔想接貨，最多都只係輸期權金。但係依個long call嘅「冷靜期」都係有成本，值唔值張put同call嘅期權金真係見仁見智。

如果決心要接貨，唔會改變心意，我始於認為short put會好啲。因為一開始大家就係討論緊「想接貨應該用short put定long call？」。雖然市況轉變嗰陣可能會臨時改變主意，但唔會經常發生，未至於影響依條問題嘅答案。

你講法係無錯的,但係識玩的都唔會玩uncovered call / put

而且樓主已經講左新手兩隻字

如果隻股現價10蚊，我目標9蚊入
我淨係諗到sell open put $9
我諗唔明點解有人會揀long $9 call? 咁做有咩好處？
新手一名