Well, I wanted to do a little attribution analysis for my own purposes and now find that I have the same viewpoint as a publish-or-perish academic: publish everything! If you have a good laundry list, publish that!
The worst performers of May (of the issues included in the HIMIPref™ Universe) were:
| Ticker | Sector | Return | Probable Cause |
| AR.PR.B | Scraps | -29.08% | Who cares? |
| WN.PR.E | PerpetualDiscount (begin) Scraps (end) |
-7.70% | Credit |
| BCE.PR.I | FixFloat | -7.69% | Credit |
| BCE.PR.R | FixFloat | -7.50% | Credit |
| CM.PR.J | PerpetualDiscount | -6.96% | Rationalization |
| GWO.PR.I | PerpetualDiscount | -6.63% | Rationalization |
As of May 31, CM.PR.J was quoted at 22.85-90 with a curvePrice of 23.06; GWO.PR.I was quoted at 22.83-85, curvePrice 22.86. These issues are very similar, having the same annual coupon and the same credit rating. It is because these issues now appear reasonably fairly priced that I have characterized the probable cause as “Rationalization”. However, I could just as easily – and perhaps better – characterized the probable cause as simply “Vanishing Liquidity Premium”.
Let’s have a closer look at those curve Prices:
| CM.PR.J Monthly Curve Price Comparison | |||
| Component | May 31 | April 30 | Change |
| Price due to base-rate | 22.03 | 22.36 | -0.33 |
| Price due to short-term | -0.49 | -0.21 | -0.28 |
| Price due to long-term | 1.78 | 1.32 | +0.46 |
| Price due to Interest Income | 0.00 | 0.00 | 0.00 |
| Price to to Cumulative Dividends | 0.00 | 0.00 | 0.00 |
| Price due to SplitShareCorp | 0.00 | 0.00 | 0.00 |
| Price due to Retractibility | 0.00 | 0.00 | 0.00 |
| Price due to Credit Spread (2) | 0.00 | 0.00 | 0.00 |
| Price due to Liquidity | 0.39 | 1.47 | -1.08 |
| Price due to Floating Rate | 0.00 | 0.00 | 0.00 |
| Price due to Credit Spread (3) | 0.00 | 0.00 | 0.00 |
| Price due to error | 0.08 | 0.02 | +0.06 |
| Price due to Credit Spread (High) | 0.00 | 0.00 | 0.00 |
| Price due to Credit Spread (Low) | -0.74 | -0.61 | -0.13 |
| Curve Price | 23.06 | 24.35 | -1.29 |
| Quote | 22.85-90 | 24.56-71 | -1.71 – -1.81 |
…and…
| GWO.PR.I Monthly Curve Price Comparison | |||
| Component | May 31 | April 30 | Change |
| Price due to base-rate | 21.83 | 22.34 | -0.51 |
| Price due to short-term | -0.49 | -0.21 | -0.28 |
| Price due to long-term | 1.78 | 1.32 | +0.46 |
| Price due to Interest Income | 0.00 | 0.00 | 0.00 |
| Price to to Cumulative Dividends | 0.00 | 0.00 | 0.00 |
| Price due to SplitShareCorp | 0.00 | 0.00 | 0.00 |
| Price due to Retractibility | 0.00 | 0.00 | 0.00 |
| Price due to Credit Spread (2) | 0.00 | 0.00 | 0.00 |
| Price due to Liquidity | 0.39 | 1.48 | -1.09 |
| Price due to Floating Rate | 0.00 | 0.00 | 0.00 |
| Price due to Credit Spread (3) | 0.00 | 0.00 | 0.00 |
| Price due to error | 0.08 | 0.02 | +0.06 |
| Price due to Credit Spread (High) | 0.00 | 0.00 | 0.00 |
| Price due to Credit Spread (Low) | -0.74 | -0.62 | -0.12 |
| Curve Price | 22.86 | 24.34 | -1.48 |
| Quote | 22.83-85 | 24.75-79 | -1.92 – -1.94 |
I discussed the yield curve and the collapse of the liquidity premium in the post HIMI Index Performance, May 2007:
One very interesting thing that happened this month is that a lot of the yieldCurvePremiumLiquidity disappeared, as shown in this graph. I interpret the change in the premium as reflecting a desire by some holders, at least, to get out of the sector in size and quickly; such holders might simply sell their most liquid holdings to adjust portfolio exposures; this will affect the prices of these issues; hence, liquidity will become a lot less expensive. The PerpetualDiscount index is the most liquid of all the sub-indices – it’s dominated by recent issues, apart from anything else – and thus a portion of the decline in this index might be attributed to this factor rather than the intrinsic characteristics of the investment.
Such a hypothesis gains some support from examination of the changes in the yield curve, which I found a little surprising. The long-end hasn’t moved by nearly as much as one might have expected. Note that this graph is of the TAXABLE curve and refers to SPOT YIELDS … therefore, the x-axis shows the yield one might expect on a “stripped dividend”, after tax.
Hopefully, the tables above will make my meaning a bit more clear. However, I should advise explicitly that the huge importance of liquidity in the above tables is probably over-stated. It comes out of the math, all right, and I have no problems with the mechanical correctness of the math … but as I’ve re-stated above, liquidity is not distributed homogeneously across the HIMIPref™ universe – it is highly concentrated in the PerpetualDiscount segment and this can lead to a confounding of the analysis.