ウィークリーオプションのセータ減衰

Always a tricky balance. I usually scale back my position size significantly on Fridays, especially if it's been a volatile week. Better to leave some on the table than get crushed by a late swing.

For me, it's about setting hard stop-losses. I size based on my maximum acceptable loss for that specific trade, regardless of the day of the week. Friday just means I'm extra vigilant.

Definitely. I try to keep my weekly premium positions small enough that a sudden swing won't blow up the account, but large enough to make the theta decay worthwhile. It's a tricky balance.

Good point about Friday theta burn. I tend to reduce position size significantly on Friday afternoons for weekly premium, especially if it's already a profitable trade, or just close them out entirely before the last hour.

Definitely. It's a tricky balance between collecting that last bit of decay and the increased gamma risk into the weekend. I'm usually cutting positions well before the bell or sizing down significantly.