調べてみた。
Apple 新型 iPhone 発表会後の株価の推移

2020-10-14 ?

2019-09-11 iPhone 11/11 Pro/Pro Max, Apple Watch Series 5
https://tvc-invdn-com.akamaized.net/data/tvc_9745f648965155bcc075f7e312c9a190.png

2018-09-13 iPhone Xs/Xs Max/XR, Apple Watch Series 4
https://tvc-invdn-com.akamaized.net/data/tvc_c812ca0e1d95101768556231376f74da.png

2017-09-13 iPhone8/8 Plus/X, Apple Watch Series 3
https://tvc-invdn-com.akamaized.net/data/tvc_9ee1e8fc3ae47e4f89afbd3d8281547b.png

2016-09-07 iPhone 7/7 Plus, Apple Watch Series 2
https://tvc-invdn-com.akamaized.net/data/tvc_3ce48edb0b37a5041116ca31ad85b2df.png