1) Get a cup of coffee.
In this thread, I'm going to walk you through "The Kelly Criterion".
This is what is now known as the Kelly Criterion.
I'll keep it as realistic as possible:
Imagine that you walk into an antique store one day. Due to the persistence of the salesman there, you buy an old lamp from him.
He also enrolls you in Robinhood's fractional share trading program, but not in margin or options trading.
ALAD is a very special stock. Each month, the stock either exactly doubles or exactly halves in value. There's a 50/50 chance of either outcome, and no way to predict it in advance.
At the end of 20 years, all the stock in your account will be liquidated, the account will be closed, and its entire value will be given to you in cash.
The only thing within your control is the portfolio rebalancing at the start of each month.
So what should your rebalancing strategy be?
During this month, ALAD can either double or halve.
So, for every $1 you invest in ALAD at the beginning of the month, you'll have either $2 or $0.50 at the end.
On average, you'll have ($2 + $0.50)/2 = $1.25.
This is beginning to look like a no-brainer.
Clearly, the best way to proceed is to go "All In". Put your entire initial $1 in ALAD, and hold it for 20 yrs.
Best case: ALAD doubles every single month. That leaves you with many, many billions of dollars.
Worst case: ALAD gets halved every single month. That leaves you with an insignificant fraction of a penny.
These are like tossing a coin 240 times (once a month for 20 years) and expecting to get heads (or tails) every single time.
So what does the *average* case look like?
Remember that on average, you make 25% per month? Compounded over 20 years, that turns your $1 into many billions.
So, in all likelihood, you'll make out like a bandit, right?
Not so fast.
And a 67.4% chance that you'll end up with less than $100.
And only a 3% chance that you'll end up a billionaire.
It's because outliers skew the average.
The billion dollar plus outcomes are so good that they lift up the entire average.
Kind of like one winning lottery ticket compensating for thousands of duds.
These doublings and halvings cancel each other, leaving you with roughly the same $1 you started with.
*Most likely* outcomes are not swayed by outliers. *Averages* are.
In this case, you will *most likely* end up with just $1. But *on average*, you expect to end up with billions.
You need a strategy that maybe gives up some of the unlikely billions in potential upside, but buys you a very good chance of turning that $1 into $100K or $1M.
That's the genius of Kelly. He found that strategy.
At the start of each month, rebalance your portfolio so that exactly half of it is in cash and the other half is in ALAD stock.
The difference is night and day.
Just take a look at this table:
Kelly also gives you a 50+% chance of ending up a millionaire, and a 11% chance of ending up a billionaire!
The *average* outcome is still in the many billions, although Kelly does sacrifice some of the tail-end mega-billions.
When you apply the math to this particular problem, it so happens that you get 1/2 and 1/2 as the optimal strategy.
What if ALAD could quadruple, double, stay the same, or halve?
What if there was more than 1 stock: Aladdin Enterprises and Jasmine Enterprises?
Kelly's theory is applicable to all this and more.
"Fortune's Formula" by @WPoundstone is an excellent non-technical book that covers the Kelly Criterion in some detail.
https://t.co/soE2dFHDTH
https://t.co/76dL3uu0Ot
https://t.co/dagvcvorZo
https://t.co/QAypqSA5N5
https://t.co/tplsgSr2mG
1/7 Thread: Ergodicity
— Mostly Borrowed Ideas (@borrowed_ideas) May 17, 2020
Let\u2019s play a game.
Assume you have $100. We\u2019ll flip a coin 100 times. Your wealth will be +50% for each Heads, and -40% for Tails.
Wanna play?
Of course, you should! The expected value for each flip is $5.
But should you really? Let\u2019s figure out.
https://t.co/FQDocNUnL4
Turns out there’s actually some interest in the core mathematical theory behind the Kelly Criterion.
So, with a shout out to @borrowed_ideas who encouraged me to include this, here’s an appendix to the tweetstorm that gets into the math.
Instead of maximizing the wealth you expect to have at the end of each round, maximize the logarithm of this wealth.
At the start of a particular month, suppose our portfolio is worth $X. We divide this into two fractions: $f*X and $(1-f)*X.
We put $f*X in ALAD and keep $(1-f)*X in cash.
If we’re lucky, the ALAD part of our portfolio would have doubled. So the whole portfolio will be worth $f*X*2 + $(1-f)*X.
But if we’re unlucky, the ALAD part would have halved, leaving us with $f*X/2 + $(1-f)*X.
Lucky case: log(X*(1+f))
Unlucky case: log(X*(1-f/2))
0.5*log(X*(1+f)) + 0.5*log(X*(1-f/2)),
which simplifies to:
log(X) + 0.5*log(1 + f/2 - f^2/2).
That’s the same as maximizing 1 + f/2 - f^2/2, which happens to be:
9/2 - 2*(f - 1/2)^2.
Maximizing this means minimizing (f - 1/2)^2.
And that means choosing f = 1/2.
So choosing f=1/2 means we put half the portfolio in ALAD stock.
The other half, (1-f), goes to cash.
And that’s how you do the math behind the Kelly Criterion.
More from 10-K Diver
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A pleb's guide to using @Keeper_DAO's hiding game to acquire $Rook below market price and arb it like a pro.
Before reading this thread, please read this one to provide a bit of context:
https://t.co/jLeUJRIjLG
Here we go!
1/
Ok I couldn't resist myself...
— 0x_Infinitum (@CryptoMessiah) February 3, 2021
OOOONNEEE more $Rook post.
Before i get into the REALLY cool shit i want to talk about, let me discuss the arb mining mechanics that were present during the initial distribution phase.
See this image, that's the keeperdao treasury.
1/ pic.twitter.com/Z2sMsZN9jo
Before we really get into the meat of this... please do understand that the hiding game is currently in alpha. Hardware wallets don't work w/ it yet (they will soon).
Sometimes orders go unfilled (improving every day).
2/
A bit more context:
Limit orders on an amm aren't limit orders in the traditional sense. They are actually arbitrage opportunities for keepers. Keepers are bots that operate in the dark forest of ethereum.
3/
Now, let's say you use a service like 1inch or matcha to set your limit orders.
Let's say eth is $900 and you want to sell at $1000.
Eth pumps to $1040 rapidly, a keeper fills your limit order for $1000... everyone is happy. But wait... who gets the extra $40 here?
4/
Hint: it's not you! But what if you could?
This is where the hiding game comes in.
https://t.co/6sBlUWfw00
When you submit a limit order through the hiding game, @Keeper_DAO takes the $40 (or w/e amount) referenced above (this is MEV) and pushes it to the treasury.
5/
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Here I will share what I believe are essentials for anybody who is interested in stock markets and the resources to learn them, its from my experience and by no means exhaustive..
First the very basic : The Dow theory, Everybody must have basic understanding of it and must learn to observe High Highs, Higher Lows, Lower Highs and Lowers lows on charts and their
Even those who are more inclined towards fundamental side can also benefit from Dow theory, as it can hint start & end of Bull/Bear runs thereby indication entry and exits.
Next basic is Wyckoff's Theory. It tells how accumulation and distribution happens with regularity and how the market actually
Dow theory is old but
Old is Gold....
— Professor (@DillikiBiili) January 23, 2020
this Bharti Airtel chart is a true copy of the Wyckoff Pattern propounded in 1931....... pic.twitter.com/tQ1PNebq7d
(I am forced to do this due to continuous hounding of Sikh Extremists since yesterday)
Rani Jindan Kaur, wife of Maharaja Ranjit Singh had illegitimate relations with Lal Singh (PM of Ranjit Singh). Along with Lal Singh, she attacked Jammu, burnt - https://t.co/EfjAq59AyI
Tomorrow again same thing happens bcoz fudus like you are creating a narrative oh Khalistan. when farmers are asking MSP. (RSS ki tatti khane wale Kerni sena ke kutte).
— Ancient Economist (@_stock_tips) December 5, 2020
U kill sikhs in 1984 just politics. To BC low IQ fudu Saale entire history was politics.
Hindu villages of Jasrota, caused rebellion in Jammu, attacked Kishtwar.
Ancestors of Raja Ranjit Singh, The Sansi Tribe used to give daughters as concubines to Jahangir.
The Ludhiana Political Agency (Later NW Fronties Prov) was formed by less than 4000 British soldiers who advanced from Delhi and reached Ludhiana, receiving submissions of all sikh chiefs along the way. The submission of the troops of Raja of Lahore (Ranjit Singh) at Ambala.
Dabistan a contemporary book on Sikh History tells us that Guru Hargobind broke Naina devi Idol Same source describes Guru Hargobind serving a eunuch
YarKhan. (ref was proudly shared by a sikh on twitter)
Gobind Singh followed Bahadur Shah to Deccan to fight for him.
In Zafarnama, Guru Gobind Singh states that the reason he was in conflict with the Hill Rajas was that while they were worshiping idols, while he was an idol-breaker.
And idiot Hindus place him along Maharana, Prithviraj and Shivaji as saviours of Dharma.