The relevant issues in the principal proceedings
3 These are group proceedings under Pt IVA of the Federal Court of Australia Act 1976 (Cth): see Wingecarribee Shire Council v Lehman Brothers Australia Limited (No 3) [2010] FCA 747. It is convenient to refer to the applicants as the Councils, for the representative parties are, in fact, local government councils and many of the group members are also such bodies.
4 The argument concentrated on a number of paragraphs in the second further amended statement of claim ("the statement of claim"), and one paragraph in Lehman Bros' defence. Relevantly, the statement of claim alleged that the 39 SCDOs:
"14.13 were risk rated and assigned a rating not equivalent, as regards risk profile, to other types of financial products carrying the same ratings;
PARTICULARS
Ratings are only an indicator of credit risk in terms of the expectation of the first dollar of loss and provide no information about the expectation of the amount of loss given default ('LGD') (for example, a security with a 1% chance of losing 5% and a security with a 1% of losing 100% would be given identical ratings).
14.14 were exposed to unusual risks including:
…
(j) modelling risk - the risk arising from the fact that SCDOs prior to and during the Claim Period were subject to more complicated financial modelling and assumptions for the purpose of such modelling as compared to traditional FRNs and small deviations from modelling assumption could result in significant changes in the value of SCDOs."
5 The statement of claim also alleged that Lehman Bros had breached its duty of care to the Councils as a financial adviser, because it did not advise them that:
· the 39 SCDOs were not equivalent, as regards risk, to other types of financial products carrying the same ratings (par 22.3);
· the modelling used to assess risk attaching to the 39 SCDOs was limited by:
(1) the relatively short period during which SCDOs had been available as investment products (par 22.4(a));
(2) the circumstance that market conditions had been favourable to the SCDOs since their inception, and the risk modelling for them had not been tested by adverse market conditions (par 22.4(b)). (The particulars for this allegation asserted that, first, the models were subject to shortcomings of data used to construct them, including the use of historical data to predict future behaviour, in circumstances where the performance history upon which ratings agencies, such as Standard & Poor's, had relied, had developed under very benign conditions; secondly, ratings agencies had an inherent conflict of interest in rating SCDOs, because the issuer of each product had commissioned the rating agency to rate it and, on an ongoing basis, would commission the ratings agency to provide updates; and, thirdly, the ratings did not reflect the potential impact of all risks related to the structure, market and other factors that might affect the value of the notes and, in particular, the level of correlation between credit events, that is, events that might give rise to a default.)
6 Next, the Councils pleaded that contrary to assurances allegedly given by Lehman Bros, the 39 SCDOs were not:
· equivalent, as regards risk profile, to other types of financial products carrying the same ratings and had a significantly higher risk profile than other such products carrying those ratings (par 31.4); and
· did not have risk profiles equivalent to traditional floating rate notes (par 31.5).
7 Lehman Bros' defence repeated, without admission, pars 14.13, 14.14, 22.3, 22.4 and 31.4 of the statement claim, and alleged that if those matters were established, then the ratings agencies, including Standard & Poor's, responsible for these ratings of the 39 SCDOs, had engaged in conduct that was misleading or deceptive or likely to mislead or deceive, because:
· the ratings were not equivalent, as indicators of risk or risk profile, to the same rating when applied to other financial products;
· those ratings did not disclose that the risk profile of the 39 SCDOs was significantly different from, and higher than that of, other financial products carrying the same rating; and
· models used to perform ratings assessments had the limitations alleged by the Councils, in pars 14.14 and 22.4 of their statement of claim (par 64(b) of the defence).
8 Lehman Bros then pleaded in par 64 a defence that its liability should be reduced to the extent of the responsibility of the ratings agencies. This defence was based on the provisions of s 12GP of the Australian Securities Investments Commission Act 2001 (Cth) ("the ASIC Act"), and s 35 of the Civil Liability Act 2002 (NSW). Those provisions enable a respondent to allege that it should only be liable for the proportionate amount of the applicant's claimed loss or damage attributable to that respondent's responsibility, where one or more others, has or have also contributed to the causation of the loss or damage. Thus, a respondent can plead a basis to limit its liability to an amount, reflecting the proportion of the loss or damage claimed, that the Court considers just, having regard to the extent of that respondent's responsibility for the damage or loss.
9 The Councils pleaded in their reply that the defence did not disclose a basis to justify Lehman Bros obtaining any limitation of its liability as pleaded in par 64 (see par 8 of the reply). At the moment, the Councils have not applied to strike out par 64 of the defence. In any event, it appeared to be common ground on the motion, that if Lehman Bros were unable to establish that it had a legitimate forensic purpose in seeking the class of documents in par 1(c) of the amended schedule to the subpoena or that such documents were not relevant in respect of the identified paragraphs in the statement to claim, then par 64 of its defence did not advance the argument further. Thus, I need not consider this defence separately for present purposes.