Itu Picaaang @PAClearning

A top quant lost his job due to an AI reasoning model replacing him at his company. He kept applying to different companies and tried his hand at macro writing but to no avail. Eventually he swallows his pride and talks to his school friend who is now a plumber. "I understand your old position was a finance maths guy. Why don't you come to our company and apply for a plumber position? You will earn half your old salary but the overtime and the union benefits make up for the rest. But remember, when you apply, tell them that you completed only seven elementary classes. They don't like educated people." So it happened. The quant got a job as a plumber and his life significantly improved. He just had to seal a screw or two occasionally, and his salary was good enough and he had zero stress. One day, the board of the plumbing company decided that every plumber had to go to evening classes to complete "basic financial literacy" certification. So, our quant had to go there too. It just happened that the first class was retirement planning. The evening teacher, to check students' knowledge, asked “If you invest half your money in stocks and half in bonds, how do you calculate the portfolio return?” The person asked was the quant. He jumped to the board, and then he realized that he had forgotten the formula. He started to reason it, and he filled the white board with He defined a filtered probability space (Ω, ℱ, {ℱ_t}, ℙ) and posited two correlated geometric Brownian motions for the risky and “risk-free” assets. He invoked the Radon-Nikodym derivative to switch to the risk-neutral measure ℚ, then switched back because the question was about realized returns, not prices. He filled the whiteboard with stochastic discount factors, covariance matrices, CRRA utility functions, and pages of Itô calculus. He derived the wealth process under a self-financing strategy: dW_t = W_t[(w R_s + (1−w) R_b) dt + w σ_s dB_t^s + (1−w) σ_b dB_t^b] Then he solved the HJB equation for the optimal allocation, noted that Merton’s solution collapses to a constant weight under log utility, and circled w = ½ as the given constraint. He invoked the linearity of expectation. He cited Markowitz (1952). He drew a small efficient frontier in the corner for context. Finally, exhausted, chalk-dusted, eyes wild, he arrived at: R_p = ½ R_s + ½ R_b Then forty plumbers, in perfect unison, slammed their wrenches on the desks and roared: “YOU FORGOT THE VOLATILITY DRAG, YOU FUCKING TOURIST!!”

33 128 2K 211K 520

View Details

Yerusolo Mania【DavidBeatt】🐿🦉🎨🔮🧟‍♀️☔🦚🍂🔨📜 @BudiBukanIntel

a week ago

Kenapa muhammadiyah bisa kuat lawan grib? Karena berorganisir Organize

Kapten Haddock @SeekHustle

a week ago

Ternyata kasus 'pengamanan' anak ahmad bahar oleh anggota GRIB suruhan Hercules kemarin berujung panjang capt 😅 Gini kronologis kejadiannya: • 14 Mei 2026 (Awal Mula Konflik): Ponsel penulis Ahmad Bahar dan putrinya, Ilma Sani Fitriana (33), diduga diretas oleh pihak tidak

642 2K 8K 1.5M 2K

70 1K 6K 777K 338

View Details

Itu Picaaang @PAClearning

a week ago

Dia yang menyarankan, dia sendiri yang bilang salah.

0 0 0 154 0

View Details

Itu Picaaang @PAClearning

a week ago

@blothecap Congrats!

0 0 0 206 0

View Details

0xturbanurban @0xturbanurban

a week ago

@larpcapitalwc There’s always a price

0 2 22 2K 3

View Details

Сarm1ne @carm1nee

a week ago

Bill Ackman made $2.8 billion on a single interest rate hedge, his only regret: "we should have made $10 billion - we were a little timid" he raised his first fund by cold-calling every billionaire on the Forbes 400 list. 100 meetings, 6 said yes and total: $3.1 million his worst recent trade: lost $400 million on Netflix in a few months. "new facts emerged which were inconsistent with the original thesis - so we exited" bookmark & listen ↓

Сarm1ne @carm1nee

a week ago

Bill Ackman turned an $8 billion railroad into $25 billion in 16 months, he shorted a $7 billion bond insurer at $73 this is him explaining how at Oxford "no one believed me, so I said: I hereby commit to give away 100% of any personal profit. that day was the high for the

13 20 198 1.1M 292

31 97 1K 1.1M 1K

View Details

Malik Ar Rahiem 🇵🇸 @malikarrahiem

2 weeks ago

Salah satu hal yg membuat saya surprise ketika menerjemahkan Franz Junghuhn adalah karena ternyata badak itu daya jelajahnya sampe ke puncak2 gunung! Saya tuliskan di sini beberapa kutipan Junghuhn ketemu badak/jejak badak di Gede-Pangrango.