Can Block Traders Forecast XBI?
Our principal interest is in identifying specific investment opportunities, not having market environment discussions. Still, with a backdrop of over 5 million price range forecasts, the potential for useful information exists.
But that overall equity market is subject to such a diversity of influences and changing circumstances, getting any useful handle on it is a task beyond nearly everyone, including us and our sources – who may be the best informed players in the business.
Instead, we prefer to find time-disciplined, defined-size, price swing situations in specific investments that have evidence of fairly reliable prior forecasts. We limit ourselves to time horizons that have reasonable chance to be foreseen, usually 3-6 months.
We get our forecasts from the way that market professionals protect themselves as they compete by taking necessary at-risk positions in stocks and ETFs. Their hedging activities are committed, forward-looking forecasts of what they believe can happen.
Here is a picture of how they saw prospects for XBI, the S&P Biotech SPDR, during the past two years:
In this chart the vertical lines are forecasts of prices to come, not records of prices past. The colors suggest investment traffic signals available at the time.
A simple, but useful guide is to consider the range top of a forecast as a sell target for a buy made at that date. The target should be kept specific to the buy, and not changed, despite subsequent events.
You say that’s not the way it’s done? Not what you’ve been taught?
Suppose you chose to buy the XBI in early April, 2008 at $50 because the biotech industry’s future then looked very bright. Damn! Were you smart – for a while.
Doing what you were taught, you held it for the “long term.” Maybe not so smart. Because here you are a year and a half later at $52 with only a 3% annual rate of gain.
Using the traffic signals instead, and reading rough estimates from the chart, you could have had (April’08)Buy@50-Sell@60, (October’08)Buy@50-Sell@57, (March’09)Buy@43-Sell@51 for gains of $10, $7, and $8; $25 instead of $2. And have had your capital available for other use perhaps 1/3rd of the time.
With no sickening lose-a-third-of-your-money drops from $69 to $43.
This is shorter time horizon active investing, not day trading. You would have made three transactions in a year and a half, not an hour and a half. Holding periods averaged four months, not four hours — or four years.
The market-makers don’t want or intend to hold any position four months. But they can probably anticipate most of the price-moving conditions in the next 3 or 4 months. They just don’t know for sure when any of them might occur. So their uncertainty has to include them all, even if their positions are eliminated in 4 days.
Just try and anticipate what any company is likely to really earn in 4 years, let alone what their capital structure (number of shares) may be and what their auditors will allow them to report. And correctly guess what the market conditions will be like out there in time, and you might know what your return on investment will be.
Duplicate that effort for all of the candidates you might speculate in so that comparisons can be made, and, voila, you’re a long-term investor (?).
There’s a reason that America’s Cup sailboat skippers sail all those short tacks. That way the competition doesn’t get away from them if the wind shifts temporarily in their favor.



