US stock market quadruple witching day, expiration date options

US Stock Market Quadruple Witching Day and Expiring Options
Analysis and Reflection on a Beginner's US Stock Holdings Yesterday
On Quadruple Witching Day, it's best to watch more and act less!

I'm a complete newbie, so if anything I wrote is incorrect or mistaken, please kindly correct me.

I registered my account a month ago and just learned about Quadruple Witching Day for the first time. Like expiring options, "knowledge from books is shallow; true understanding comes from practice."
Here's what happened: After studying some theory and discussing with others, I decided to try buying one option contract (equivalent to 100 shares). Due to unfamiliarity with the trading interface and operational mistakes, on 9/18, I bought a WOLF long call at $10 expiring on 9/20. Later, I realized it only had three days—how could it possibly rise? But since a $10 loss was acceptable as a lesson, I left it alone. However, after chatting with customer service yesterday, I learned that Longbridge doesn’t support voluntarily abandoning options, meaning I might have to exercise it. No way! WOLFSPEED's stock price is only $8 now—why would I buy at $10? I didn’t fully understand, and they also mentioned the possibility of "negative balance." I asked, "I only bought one $10 option—could my account lose thousands? That’s robbery!" Some experienced traders reassured me it’s fine, but I was still uneasy, so I decided to empty my account. Maybe I was overreacting, though—so far, that option hasn’t changed at all!

To empty the account:
1) The safest option was a bank transfer, but my card is Singapore’s OCBC. Transferring USD to OCBC incurs fees, and converting to SGD has exchange rate losses. I didn’t proceed.
2) Next, I thought of reverse repos, but I’m not sure if US stocks have those. Alternatively, I considered a money market fund, but I wasn’t sure when the funds would be deducted—whether before option expiration. I didn’t proceed.
3) Finally, I thought, "Why not buy stocks? Maybe I’ll get lucky." Turns out, I didn’t—just more losses.
My holdings:
TSLL (Tesla 2x Bull ETF) (new): Cost $11.679, closed near breakeven. Considering FSD’s potential entry into China, I planned to buy more if it dropped sharply. But I bought yesterday due to the option issue.

SERV: Cost $7.89, opened up 6% but didn’t sell, closed down 4%.

UPST (beneficiary of rate cuts) (new): Heaviest position, cost $40.455, down 2%. Planned to buy more if it dropped sharply yesterday due to the option issue, but I’m still bullish.

MBLY (Intel hasn’t given up): Cost $13.295, down 7%.

LI (Li Auto): $21.010, slightly above cost.

FFIE (Faraday Future): Pure gamble after news of a second brand, down 7%.

UAL (beneficiary of rate cuts): Cost $53.5, down 3%.

MSTX (beneficiary of rate cuts): Cost $19.085, negligible since I sold most on Thursday, leaving just 1 share. Planned to buy more if it dropped sharply—missed a 4% dip.
TSLA (Tesla shares): Cost $223.411, also negligible since I sold most on Thursday, leaving 1 share. Planned to buy more if it dropped.
Amphenol: Looked strong yesterday amid tech declines, so I bought at $65.61. But when it dipped, I thought, "If tech falters, this won’t stay strong," so I switched to TSLA and UPST. At close, Amphenol was up, while TSLA was breakeven and UPST was down. If I’d just held, it would’ve been a pleasant surprise.

Intel: Bought earlier, held through an 8% gain, then sold when it broke support, down 3%. Last night, M&A news sent it up 9%. Another missed opportunity. "You can’t force luck."
Leafy (cannabis): Up 10% pre-market but didn’t dare go heavy.

LICY (copied a pro’s trade): Flat, no gain or loss.

Paying tuition everywhere—from A-shares to US stocks.

"Time flies unnoticed; looking back, my stock journey is full of bitter days."

Also, check out Apple’s expiring options: Intense long-short battle at yesterday’s close, ending down. Two contracts, polar opposites—feels like the market isn’t trading fundamentals but chips, just like A-shares. The 9/20 call expired worthless (-100%), while the 9/20 put soared (+100%). That’s the thrill of expiring options. My WOLFSPEED trade? Never meant to be an expiring option—just a learning experiment. I thought it’d auto-close, but nothing’s happened—no sale, no close. No idea what’s going on.  

$Tesla(TSLA.US) $Intel(INTC.US) $NVIDIA(NVDA.US) 
Screenshots are a bit messy, but that’s it.

Typed so much—time for breakfast.

What’s done is done; eating comes first!