State Space Models

All state space models are written and estimated in the R programming language. The models are available here with instructions and R procedures for manipulating the models here here.

Thursday, January 19, 2012

EK: Kodak Moment

Today it was announced that Eastman Kodak (EK) had filed for bankruptcy. The company vowed to continue business as usual and plans to emerge from bankruptcy after "shrinking significantly". At the close of business today the stock was worth $0.360!

At the end of this post I have a CNBC Fast Money video of an interview conducted tonight with EK investor Greg Abella of the Investment Partners Group. Mr. Abella currently owns close to 200,000 EK shares and more the $1 million in Kodak bonds. He was asked in the interview "Why were you holding the stock until the bitter end?"

The question caught the attention of the Random Stock Walker. When might Mr. Abella have known Kodak was going to collapse and what are the chances he can hold his stocks and bonds until the company comes out of Chapter 11?
To answer these questions, I thought I would estimate an EK model ending in the year 2000 and then play the model forward from 2000, compare the predictions to current data and ask what Mr. Abella might have learned doing a similar exercise. The best EK2000 attractor model was being driven by the world economy which makes some sense since Kodak was a world company. Ending the attractor model in 2000 and then forecasting out of sample (see the graph above) didn't really say anything special except that the EK stock price was declining from the mid 1960's with a lot of chop along the way. In other words, the idea that Kodak missed the digital age is a little off the mark. Kodak missed the entire late 20th century.

For the future, the EK2000 attractor model predicts that there is a 50-50 chance that the EK stock price will begin climbing after 2040 and a 98% chance it will begin climbing before 2060. That will be really a long time for Mr. Abella to wait for his money. Now, if you're still interested, you can listen to his interview below.












Thursday, January 12, 2012

AAPL: When Will Apple Stock Hit $1000 per Share?


In May of 2011, James Altucher of Formula Capital forecast (here) that AAPL would be the first company to be worth more than $1 trillion which would be a price of about $1,000 per share. CNBC recently ran a twitter poll asking when viewers thought this might happen. I haven't seen the answer to this poll, but here are my answers based on the forecast graph above: There is a 1% chance that AAPL will hit $1000 per share by mid-2018, a 50% chance by the start of 2021 and a 99% chance by mid-2034. In other words, spreculation about the event would seem a little premature right now.


For the present, AAPL still seems to be undervalued (P/E > 15), continues to have a strong balance sheet and continues to have products in the pipeline (see more analysis here).
For the coming year, if AAPL has a few drops when the stock price gets close to the lower 98% bootstrap prediction interval (the dashed blue line above), it would seem to be a buy if one can afford a stock price approaching $500 per share. AAPL also had a few pops last year when the price reached the upper 98% bootstrap prediction interval (dashed green line). I need to take some profits so hopefully I'll be able to catch one of the peaks when I sell.