Marsoft provides forecasts for major
market segments in the dry bulk, tanker and containership markets.
These forecasts span a period of five years (on a quarterly basis)
and cover a specific spot rate for each market segment as well as
one-year time charters, newbuilding and secondhand prices. We have
published forecasts since 1985, although the statistics herein refer
to the period from 1990 for our dry bulk and tanker forecasts and
from 1999 for our container forecasts. In addition to our Base Case
(or most likely scenario), we also provide High and Low Case
scenarios to capture selected elements of market risk.
The statistical
models we use to forecast rates and prices based on input supply and
demand factors generally explain 80% - 95% of the historical
variation in rates and prices (given the supply and demand inputs).
The models are re-estimated every few years to account for changes
in market structure or the availability of new data. The model
details are described in the technical documentation available under
separate cover.
Providing a
single simple measure of forecast accuracy covering all those
markets, at all horizons, and for different forecast variables is
challenging. We believe the attached summary of the performance of
our Base Case forecast of one-year time charter rates, focusing on
the accuracy six months after the forecast is published, is
representative of Marsoft’s track record.
A key issue with
regard to interpreting forecast accuracy is to use the right
benchmark. While it is important to compare the forecasts to actual
market developments, it is also worthwhile to consider how the
accuracy of the Marsoft Base Case forecast compares to the accuracy
of alternative forecasts available at the time.
Of course this
comparison is made difficult by the fact that we do not have access
to a historical database of alternative forecasts. One alternative
benchmark that is available, however, is to assume that rates are
simply equal to the historical average of rates prior to the date of
the forecast. This kind of moving average outlook does not account
for any fundamental analysis, but it can be interpreted as a kind of
“judgment free” forecast.
The attached
figures compare the performance of Marsoft’s Base Case forecast to
the performance of a forecast that sets future rates equal to the
ten-year average of rates prior to the date of the forecast. The
following page evaluates the accuracy of each forecast across the
dry bulk, tanker, and container markets combined, and the subsequent
pages examine each market individually. We compare each forecast on
two different measures of accuracy; distribution of forecast errors
and turning point accuracy. The first measures the percentage
deviation of each forecast from the actual TC rate six months later,
while the latter is a measure of how precisely each forecast is able
to predict the direction of the market on a 6-month ahead basis.
On both of these
measures, the accuracy of Marsoft’s Base Case forecast clearly
dominates that of alternative technical forecasts based on
historical rates. This is particularly relevant for credit rating
purposes, as typical rating exercises rely upon an assumption that
markets in the future will, on average, match markets in the past.
Marsoft Track Record for Dry Bulk, Tanker and Containership Markets
November
2006
The
graph below plots the distribution of errors of Marsoft’s 6-month
ahead TC rate forecasts against that of the 10-year historical
average. Over the period 1990 – Q3 2006, our forecasts fell within
10% of the actual TC rate 55% of the time, compared with just 18%
of the historical average forecasts. Similarly, in 78% of our
forecasts we predicted the TC rate to within 20% of the actual
value. The historical average achieved that level of accuracy just
35% of the time. In addition, our forecasts are much more powerful
in times of extreme rates, such as the last couple of years. As
the graph below demonstrates, the historical average is much more
likely to substantially underestimate rates than are our
forecasts. In fact, 23% of the historical average forecasts
underestimated future rates by more than 50%. This figure falls to
just 3% for Marsoft’s forecasts.
Table 2
illustrates the accuracy with which each forecast was able to
predict rising or falling rates over a 6-month forecast horizon.
Marsoft accurately anticipated the direction of the market 78% of
the time, while the historical average correctly predicted the
direction of the market just 47% of the time. Remarkably,
increasing the forecast period does not diminish the ability of
our forecasts to predict future market trends. On a 1-year ahead
basis, our forecasts achieved a turning point accuracy of 78%,
while the historical average correctly projected the direction of
the market 50% of the time.
Distribution of 6-mo. Ahead TC Rate Forecast Errors for Dry Bulk,
Tanker and Container Markets
Marsoft Base Case vs. 10-Yr
Historical Average

Percentage of Errors Within +/- 10% of Actuals
Marsoft Base Case vs. 10-Yr Historical Average
|
|
Marsoft |
Historical
Average |
|
6 Mo. |
55% |
18% |
|
1 Yr. |
29% |
18% |
|
2 Yr. |
22% |
18% |