D'ya mean like beerntrading already did above? Ya gots pictures, ya gots urls for *piles* of whitepapers..... Jeez, man, do your own homework.
beerntrading didn't post anything that shows a share price being influenced by options. You posted a link to DuckDuckGo search results for "option expiration effect on stock price". Is that how you do your "homework" - a DuckDuckGo search of the thread title?
You can actually see the delta in volume so clearly on HSY that you know what strike that was without seeing the chains. Bonus: the move was so big as the buyer chased the fill you could see the gamma. With a bit of experience, this betrays expiry too. Pull up the tape on that one and look at the correlation between the option T&S and underlying. Some might even say that correlation looks like causation. And some fun to watch today: SQ (55), BABA (200), and LULU (100) are three I've noticed that are good candidates to show how expiration factors into price today.
EPIC FAIL by Bobbygenits. You had plenty of time to study option data and post how a share price was going to be affected because of option expiry. Success should have been easy. Too late now. Maybe next week you will come up with something.
Your lack of sufficient intelligence or initiative to do your own work (or to understand others') in no way excuses you from your practiced ignorance. Troll.
From your first post, I have found it curious how someone with such a screen name and such an avatar as yours, could so persistently post such ignorant and bass-ackwards shit -- especially in regards to options. I wrote it off to to ignorance and a big ego, and (I think) ignored you. But you've re-appeared, and anyone who didn't know you might think you had a clue. But you don't. You are nothing but a Troll.
%% Does a black bear live in the woods SMB?? Yes/asking price; even more so if its a liquid stock.It may not move the bid much,LOL, but ask price move for sure, as all most anything can
Consensus expert opinion is that large open options strikes do indeed affect stock price - the pinning phenomenon.