brainteaser suppose you're in a hallway lined with 100 closed lockers. you begin by opening...

13
Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you go to every third locker and open it (if it's closed) or close it (if it's open). Let's call this action toggling a locker. Continue toggling every nth locker on pass number n. After 100 passes, where you toggle only locker #100, which lockers are open?

Upload: jonah-davidson

Post on 03-Jan-2016

215 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Brainteaser

Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you go to every third locker and open it (if it's closed) or close it (if it's open). Let's call this action toggling a locker. Continue toggling every nth locker on pass number n. After 100 passes, where you toggle only locker #100, which lockers are open?

Page 2: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

• The only way a locker could be left open is if it is toggled an odd number of times. The only numbers with an odd number of factors are the perfect squares. Thus, the perfect squares are left open. 

Page 3: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Market Update

• New home sales down by 13.3% since this time last year, and down 14.5% since last month

• 10 yrs richened 5 basis points this week (to 2.675%) despite stronger economic data and improved US equity performance

• Mortgages posted strong performance versus Treasuries as yields gravitated lower

Page 4: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Creating a Personal AccountThe Do’s and Don’ts

Page 5: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Brokerages

We use:• ThinkorSwim• Tradestation

Page 6: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Sizing

• Size different instruments differently– Is $100 of AAPL the same as $100 of /CL?

• Do you want to run a stat-arb or a concentrated portfolio

• What is diversification? – Do you want diversification / when do you not

want it?

Page 7: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Order Types

• Limit

• Market

• Trailing stops

• OSO

• OCO

Page 8: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Typical Assets

• Equity

• ETFs

• F&O

• Clearance/Waivers may be required

Page 9: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Equity

• Partial ownership in a firm• Your advantages– You can buy small market caps– Purchasing illiquid securities

Page 10: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Options and Futures

• Be very cautious!

• Margins = inherent leverage

• High risk, high reward

Page 11: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Some products to look at

• ETF– SPY– VGK– XHB

• Exotic ETFs– VXX (Note

the decay)– MNA

Page 12: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Discipline

• Why do you need a firm thesis?

• Can you simply copy a hedge fund’s holdings?

• Do you have cash on hand?

Page 13: Brainteaser Suppose you're in a hallway lined with 100 closed lockers. You begin by opening every locker. Then you close every second locker. Then you

Mistakes

• Doubling down too soon• Early sale – Symptom of under-research

and low conviction• Looking at the stock chart (for equities) /

not looking at it (for non-equities)