MAB (Marcelo Bueno, Ph.D.)

Living by the Golden Rule!

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in History!

2020
COVID-19 Pandemic declared by OMS

Dow Jones - 9.99%
S&P - 9.51%
Nasdaq -9.43%
Ibovespa -14.78%

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in History.

2000, .com crash!

1 month later Nasdaq was down 25%. Later, 78% drop from peak.

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in history!

On Monday, January 27, 2025, Nvidia's stock experienced a historic decline, plunging nearly 17% and resulting in a market capitalization loss of approximately $600 billion—the largest single-day loss for any U.S. company to date.

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in history

1941

USA joins WW2 after Japan's attack on Pearl Harbor.

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in history

1929 Crash
Black Thursday

-9%
After 36h -22% GDP

Only in Jan 1945 stocks returned to their Aug 1929 all-time high

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in history.
1987 Oct 19
Crash Black Monday

Down Jones Industrial Average (DJIA) 23% in one day!!!
Largest one-day decline ever!!!

[MIT CSAIL @MIT_CSAIL]

How do LLMs respond to questions about the election?

MIT researchers ran a 4-month study, querying 12 state-of-the-art models on over 12K prompts daily. They found that the models can reinforce certain political narratives, mislead, or even exhibit manipulative tendencies: https://t.co/U4ec1aX437

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

@guaranifc Se o STJD deixar...

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

If allowed to happen, this domino effect might have led to a worldwide financial collapse, but a Federal Reserve–inspired consortium intervened, took over LTCM, supplied more funding, and conducted an orderly liquidation.”

Excerpt From
A Man for All Markets
Edward O. Thorp
2/2

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

1998 Aug 17
LTCM crash.

“LTCM’s collapse threatened to put $100 billion or so of bad assets on the books of other institutions. This would bankrupt some banks, brokerage houses, or hedge funds, in turn spreading around more bad assets and bankrupting more institutions.
1/2

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Dia Nacional do Futebol

É comemorado no Brasil em 19 de julho. Essa data foi escolhida pela Confederação Brasileira de Futebol (CBF) em 1976, em homenagem ao @scrgoficial, o clube de futebol mais antigo do Brasil, fundado em 19 de julho de 1900.

Parabéns!

@guaranifc

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Dia da Logística.

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Dia da Física

É celebrado em 19 de maio no Brasil. Essa data foi escolhida em homenagem ao nascimento de César Lattes, um dos mais importantes físicos brasileiros, conhecido por sua descoberta do méson pi (píon) em 1947, um marco significativo na física de partículas.

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in history

2010 May 6

Flash Crash

Navinder Singh Sarao
"Top 5 e-mini trader in the world"
US$ 70 M operating US future markets, e-mini starting in 2003 at IDT (later Futex). With his point-and-click algo from 2009 to 2014, developed by Trading Technologies (Autotrader.)

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in history.

May 1, 1975
Fixed-rate broker commissions are abolished after 183 years.

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Superb engineer.
Better human being.
@stevewoz

https://t.co/l07lxBlppB

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

@Superb engineer.
Better human being.
@stevewoz

https://t.co/l07lxBlppB

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in history!

2020 Mar 11
COVID-19 Pandemic declared by OMS

Dow Jones - 9.99%
S&P - 9.51%
Nasdaq -9.43%
Ibovespa -14.78%

[MAB (Marcelo Bueno, Ph.D.) @mabueno]

Today in history!

2000 Mar 10
.com Crash

1 month later Nasdaq was down 25%. Later, 78% drop from peak.