Mathematical Money

MSc. in Power (Electrical) Engineering. Deal Maker!

    • Mathematical MoneyMathematical Money
      ·00:03

      10%+ drop in Seagate and Western Digital. Is it justified?

      2 October 2026 - Toshiba announced plans to double its hard disk drive production by fiscal 2027, with a $380 million investment to expand manufacturing capacity. This triggered sharp selloffs: Both Seagate fand Western Digital dropped 10%, though intraday lows were worse. Lets assess both sides of the story: Arguments the Drop IS Justified: Supply Risk is Real: Both stocks' big runs this year leave them sensitive to news suggesting the industry's supply and demand balance could loosen. Before the drop, Seagate shares were up 210% YTD, and Western Digital stock was up 150% YTD. (Yahoo Finance) Valuation Concerns: According to GuruFocus, Seagate's current price of $945.57 is 386.4% overvalued compared to its intrinsic value estimate of $194.40. Similar metrics show Western Digital at extrem
      80Comment
      Report
      10%+ drop in Seagate and Western Digital. Is it justified?
    • Mathematical MoneyMathematical Money
      ·10-03 13:30
      $Western Digital(WDC)$ Sharing this order again. Was the sell call 0dte I mentioned earlier. Refer to previous post for the exact excution timing.
      2.98KComment
      Report
    • Mathematical MoneyMathematical Money
      ·10-03 10:42
      $WDC 20261002 407.5 CALL$ Sold 0dte at 407.5 for a tidy profit. Covered call within 4 hours earning 1.4k usd in total from stock gain and premium. Not bad for a fish bottom trade.  More like casino than trading. Haha
      8.66K3
      Report
    • Mathematical MoneyMathematical Money
      ·10-03 08:52

      Cash-Secured Puts From Scratch — Including The 100 Contracts I'm Currently Getting Wrong

      Mathematical Money | October 3, 2026 A few people have asked me to explain how I actually sell puts, so this is the whole thing from the beginning — what it is, how I choose strikes and dates, how to place the order without giving money away, and a live mistake of mine that illustrates the one rule everybody breaks. If you already sell premium regularly, the first section will be familiar. Skip to the ordering mechanics, because that's where most people quietly lose a chunk of their edge. What you're actually agreeing to Selling a cash-secured put means promising to buy 100 shares of something at a set price, by a set date, in exchange for cash today. You set aside the money to honour that promise — that's the "cash-secured" part — and the cash you receive is yours whatever happens. Two ou
      3602
      Report
      Cash-Secured Puts From Scratch — Including The 100 Contracts I'm Currently Getting Wrong
    • Mathematical MoneyMathematical Money
      ·10-02 23:28
      $APP DIAGONAL 261023/261030 CALL 370.0/CALL 340.0$ Rolling down the short call position to squeeze more premium.
      3.53K1
      Report
    • Mathematical MoneyMathematical Money
      ·10-02 23:27
      $SPCX DIAGONAL 261106/261030 PUT 148.0/PUT 145.0$ Rolling up and out to squeeze more premium
      261Comment
      Report
    • Mathematical MoneyMathematical Money
      ·10-02 23:24
      $IBIT 20261023 47.0 PUT$ Will explain in the next post for this position.
      691Comment
      Report
    • Mathematical MoneyMathematical Money
      ·10-02 23:16
      $ORCL 20261023 195.0 CALL$ Bought the leap a few weeks ago. Up and down and back to range. Now selling the short call leg to get back some coffee money. Same time can cover abit of the theta decay of the leap
      1.52K1
      Report
    • Mathematical MoneyMathematical Money
      ·10-02 23:15
      $MARA 20261023 13.0 CALL$ Have approximately 50 contracts expiring above 14 today. Selling covered call in advance since it is not gonna be cross that strike today, not possible. 
      2.44K1
      Report
    • Mathematical MoneyMathematical Money
      ·10-02 23:12
      $Western Digital(WDC)$ Bought the stock intra day trying to fish for bottom. News from Toshiba expanding may be overblown. Liquidation taking place throughout the day flushing all the leveraged holders.
      1.39KComment
      Report
       
       
       
       

      Most Discussed