tl;dr. Doing well so far. "Interesting times" possible in late January.
So far. How is this very simplistic model doing so far? Here is the projection of the model using the data up to 2014-05-08, which is when I posted the original projection.
n.data from to mu sigma cv
1 1,380 2010-07-17 2014-05-08 0.00656 0.0652 9.93
n.fut date p_5 p_25 p_50 p_75 p_95
1 0 2014-05-08 NA NA 444 NA NA
2 1 2014-05-09 401 428 447 467 497
3 7 2014-05-15 350 414 465 522 617
4 30 2014-06-07 299 424 540 689 978
5 47 2014-06-24 286 445 604 821 1,280
6 61 2014-07-08 282 466 662 940 1,560
You will note that this is slightly different than the original projection. The reason is that the price that I originally used on 2014-05-08 was not the correct price for that day, but the price at the time of the writing, which was slightly different.
To make things more interesting, I am showing more percentiles.
Under the original prediction, today, a full 47 days later, the median predicted price is 604. The 50% CI is 445 to 821. The actual price as I am writing this is 568. Well within the 50% CI, and pretty close to the median prediction. Not bad, if I do say so myself. ;-)
Updated predictions. Same very simplistic model using the most current data.
n.data from to mu sigma cv
1 1,430 2010-07-17 2014-06-26 0.00651 0.0642 9.87
n.fut date p_5 p_25 p_50 p_75 p_95
1 0 2014-06-26 NA NA 568 NA NA
2 1 2014-06-27 514 547 571 597 635
3 7 2014-07-03 449 530 594 666 786
4 30 2014-07-26 384 543 690 877 1,240
5 61 2014-08-26 363 597 844 1,190 1,960
6 91 2014-09-25 363 670 1,030 1,570 2,900
7 122 2014-10-26 372 763 1,260 2,070 4,240
8 152 2014-11-25 388 870 1,530 2,680 6,010
9 183 2014-12-26 409 1,000 1,870 3,480 8,520
10 188 2014-12-31 413 1,030 1,930 3,630 9,010
11 213 2015-01-25 435 1,150 2,270 4,470 11,900
12 244 2015-02-25 466 1,340 2,780 5,780 16,600
13 274 2015-03-27 500 1,540 3,380 7,380 22,800
14 304 2015-04-26 540 1,790 4,100 9,430 31,200
15 335 2015-05-27 586 2,080 5,020 12,100 43,000
16 365 2015-06-26 636 2,410 6,100 15,400 58,600
17 731 2016-06-26 1,970 15,600 66,000 279,000 2,210,000
mu, sigma, and cv are all down. Meaning, both expected return and volatility have adjusted down. These are very small changes, which is what you would expect since we only added a few new data points.
Using the median outlook (p_50), we should finally break through 1k by late October. By late January, we should be at 2,270. According to my
Peak/trough model (PTM), once we reach that price level, "the moon" (the next peak) should be less than a month away. According to the PTM prediction, which I have not updated recently, the peak should happen in mid-January. If I did update the PTM prediction, that would push the peak back -- how far I don't know, but at least to late January.
In other words, the two models are making a similar prediction. Come late January, watch out, we might be blasting off (this model) or already on the moon (PTM).
This assumes that the median outlook holds. Under a "poor" outlook (p_25), come late January, we will "only" be breaking above 1k. Not the moon, not the launchpad, but still a lot of excitement.
About intervals. Look at the predictions again. Yes, these intervals are huge. I like to think of these as "honest intervals" (conditional on the model being a decent approximation of reality, which is a stretch). The intervals reflect the amount of uncertainty. There
is a lot of uncertainty, especially the further out you go. These intervals help highlight that fact.