Clay Bayさん、戦略タブをタップした後の画面はどのようになっていますか？この画像がお役に立てればと思います。

@Clay Bay：I just tried this but it didn't work. When I go to Options Chain > Tap on the Strategy tab at the bottom of the screen, it doesn't give me the choice for a Straddle. it only gives me 2 choices, 1 is single option & the other is covered.