Let's bring home money folks , You can execute the trade on Friday or Tomorrow.
Refer chart : classic Text Book pattern.
No Naked trades , Use strategy :
1) Buy 600 Dec calls , sell 620 Dec calls --- My preference.
2) Buy Dec future , Sell 600 Dec call
3) Sell Dec 600 Put , Buy 560 Put
4) Buy 2 lot 600 call , Buy 1 lot 580 put
check what strategy suits you...