Showing posts with label derivatives. Show all posts
Showing posts with label derivatives. Show all posts

Monday, November 3, 2014

A Bank Bailout Plan to INCREASE Systemic Risk ?!


Eighteen global banks agree not to terminate derivative contracts when regulators seize their failing bank counterparty.  Is that a bad idea?
(Adapted from A Bailout Plan that Could Actually Increase Systemic Risk, a Quant Perspectives column published by the Global Association of Risk Professionals)
ISDA (the International Swaps and Derivatives Association) reports that eighteen large global banks have agreed not to terminate derivatives transactions when regulators seize the bank counterparty with the goal of “resolving” the failing institution.  Both the ISDA announcement and another news article claim that this agreement will “reduce systemic risk.”  The FSB (Financial Stability Board) had requested this accommodation in the September Consultative Document “Cross-border recognition of resolution action.”
What about the healthy banks?
But what about derivatives risk management for the healthy banks that are counterparties to the failing bank?!  Termination of derivative trades before failure has been a standard tenet of risk management for decades.  See, for example, this BIS (Bank for International Settlements) 1994 document “Risk management guidelines for derivatives” that explicitly discusses early termination.  On its face, this new FSB-ISDA opposition to early termination drastically increases risk to the healthy banks in the name of assisting resolution of the failing bank.
The risk to a healthy bank in a derivative trade with the failing bank is that the former cannot know if the latter will ultimately perform on the derivative hedge or not.  If the failing bank does default on the trade, the healthy bank will have an unhedged risk position and will lose some or all of the positive value of the trade.  The healthy bank cannot hedge its risk with another derivative counterparty as long as the original trade remains in place.  Given the critical importance of hedging to bank operations and stability, this hedge uncertainty to a large global counterparty is a huge threat to safety and soundness.  Systemic risk increases due to this hobbling of risk management at healthy banks.
One may sympathize with the dilemma of the regulators
If one believes that a proper role of regulators and governments is to control the resolution or liquidation of large financial institutions, then the FSB-ISDA initiative has its merits.  It would likely be easier to “save” a failing bank if it has all hedge (derivative) agreements in place.  Just as we noted above for healthy banks, evaporation of derivative trades would leave the failing bank with ruinous open risk positions.
The FSB resolution plan appears to be to transfer some debt, some assets, and all derivatives to a “good bank” and leave distressed assets, shareholders, and bailed-in creditors in the “bad bank.”  In this positive scenario, the healthy bank derivative counterparties would find themselves facing the “good bank” such that, in the end, they would have suffered no harm.  But there are too many assumptions here.  First, the bank resolution may fail.  Second, it is unreasonable to project that all derivative trades should go to the “good bank.”  Since some assets and debt will remain in the “bad bank,” there should certainly be “bad bank” derivatives as well.
Perhaps the goal is to guarantee the derivative trades?
The FSB and ISDA do not state or hint that governments will guarantee the performance of the derivative trades as the quid pro quo for the agreement of the healthy banks not to terminate upon regulator seizure.  But this is our conjecture.  Otherwise, it is all too clear that the FSB-ISDA removal of early termination merely aids one weak bank – which likely deserves to fail – at the risk to and expense of the entire banking system.  Surely the FSB would be averse to increasing systemic risk.  Thus, our ansatz that governments will guarantee derivative performance rings true.  Perhaps the regulators will simply squeeze bailed-in creditors to whatever degree is necessary to honor derivative contracts.
The irony splashes all around us!  Once again, we find ourselves witnesses to governments bailing out and protecting the banks!  The plan appears to be that regulators will protect the bank counterparties.  At risk of raising a past controversy without room to dissect the details, this is AIG all over again!  AIG the insurance company would have withstood the failure of AIG FP (the “financial products” affiliated entity).  The true AIG FP bailout beneficiaries were the bank counterparties.
Returning to more sober considerations, our conjecture implies that the FSB-ISDA plan gives higher priority of repayment to derivative liabilities than to senior debt liabilities.  Derivatives and senior debt are currently pari passu.  We remain unconvinced that derivatives merit such super-priority.
What about CCPs?
We wonder how the FSB-ISDA gutting of early termination impacts CCPs (central counterparty clearing facilities).  The failing bank subject to regulatory resolution might be a counterparty to the CCP or a member of the CCP or even the CCP itself.  In any of these cases, forcing a prolonged period of hedge uncertainty on all other presumably healthy parties would be chaotic.


(The author acknowledges numerous helpful conversations with Ce Shi, a graduate of the Quantitative Finance and Risk Analytics Master’s program at the Lally School of Management of the Rensselaer Polytechnic Institute.  Mr. Shi is now a candidate for a Master’s in Applied Mathematics at Rensselaer.)

Wednesday, October 1, 2014

How to Build DISASTROUSLY WRONG Financial Models

Here’s the secret:  begin with the wrong goal.
(Adapted from How to Build Disastrous Financial Models, a Quant Perspectives column published by the Global Association of Risk Professionals)
Perhaps the greatest weakness we quantitative financial people have is that we assume at the outset of our careers that all colleagues and competitors share the philosophy that the goal of model development is to seek truth.  That is, imagine the current model task is to estimate the value of a loan or derivative trade, or the risk of a portfolio, or the proper credit rating of a bond, or the likelihood of repayment of a residential mortgage.  Clearly, we assume, everybody would prefer that the model have good accuracy (i.e., truth) in estimating value, or risk, or credit rating, or repayment likelihood.
Unfortunately, real life is different.  Many, though not all, actors in the financial world – business heads, traders, rating analysts, executives, regulators, consultants, auditors, politicians – desire models that describe and promote their reality.  As an example, the head of a trading desk wants models for derivative pricing that permit her group to win an adequate number of trades in competition with other firms.  (The direct experience of a friend of mine is that the tranche correlation desk of a first-tier investment bank rejected the quant team’s improved pricing model because it made the desk lose trades!)  In this case, rather than accuracy, the “reality” of the trading desk is that a good model will help win trades.
Another example is the difficulty of the CEBS (Committee of European Banking Supervisors) and EBA (European Banking Authority) in implementing stress tests for European banks beginning in 2009.  Stress tests are models.  For the CEBS and then the EBA, the “reality” of the stress test model is that it must be credible to the public and build confidence that the banks are adequately capitalized.  (See Kevin Dowd’s penetrating and entertaining “Math Gone Mad,” CATO Institute 754, 1-64, September 3, 2014.)  Needless to say, the goals of credibility and confidence are not synonymous with truth and accuracy.
Yet another, albeit indirect, example of a manipulated model is the U.S. Consumer Financial Protection Bureau (CFPB) determination that bank lenders enjoy a presumption of prudent mortgage lending practices under “Ability-to-Repay and Qualified Mortgage Standards.”  This “QM” standard specifically does not require the lender to impose or consider the loan-to-value (LTV) ratio of the mortgage loan.  Yet, if the goal of mandated underwriting standards is to reduce loan defaults, which harm both lender and borrower, then omission of LTV consideration from the “model” for a qualified mortgage is a huge oversight.  (See, for example, “Housing Industry Awaits Down-Payment Rule for Mortgages,” Bloomberg News, January 18, 2013.)  Unfortunately, the “reality” for the CFPB and self-appointed advocates is wide access to mortgage loans rather than low default risk of the loans.
There are numerous further examples of both high and low public notoriety in which practitioners create or adjust models in “helpful” directions only.  Lehman Brothers in 2007-8 (see page 180 of the Examiner’s Report) and J.P. Morgan in 2012, for example, tweaked their internal models to reduce apparent risk.
The focus on reaching desired end results rather than true and accurate results is certainly a misuse of financial models, but there’s a nuance to consider.  To judge truth and accuracy, one must inspect the model results and determine somehow whether the results “seem right.”  It could well be that the loan underwriter who watches competing lenders make loans that he had rejected will legitimately question the accuracy of his own bank’s model.  But how does one distinguish legitimate questioning of the model result from abusive adjustment of the model?
There is no simple answer other than to rely on the expert judgment of the quantitative model developer and for all analysts, users, and management to adhere to a principle of good faith.  This good-faith standard is the commitment to truth and accuracy.  Senior executives of the institution must understand that models are, by nature, malleable given their numerous judgments and assumptions.  With this understanding, the executives must then set, proclaim, and maintain a culture of good-faith, unbiased model construction and use.

The best uses of quantitative models are:  (i) the learning, intuition, and judgment one develops while building the model and (ii) the testing for completeness and quality of the firm’s data that exercising the model provides.  By virtue of assumptions and insufficient information, many financial models are less useful as generators of precise numerical results (e.g., for bank capital, loan default probability, et cetera).  When it’s imperative to have such numerical model results, then the principle of good-faith model construction is critical.

Thursday, May 8, 2014

Legal Theories in LIBOR and FX Lawsuits

While this article in CapLaw discusses the history of the allegations, investigations and lawsuits in the FX and LIBOR scandals, we thought it most interesting to focus on the legal theories and their current status.

In LIBOR, the US consolidated case held that there was no antitrust damage as the LIBOR rate setting process was not competitive in nature and thus there could not be anti-competitive behavior.  However, "second-generation" lawsuits filed by plaintiffs claiming direct trading losses from derivatives with banks that provided benchmark LIBOR rates, are moving through the legal system.  Two large plaintiffs are the FDIC, on behalf of 38 failed banks, claiming fraud and collusion were used by the LIBOR setting banks to suppress rates, and Freddie Mac and Fannie Mae, claiming that LIBOR manipulations caused them to suffer losses on mortgages and financial derivatives.

LIBOR cases in the UK have been limited, with only two cases filed, one of which was settled and the other remains with the courts.

In the FX benchmarks, the US has consolidated numerous class action suits into one.  Differences between the rate setting process in FX vs. LIBOR make it unclear whether antitrust charges will hold up in the FX case.  Fraud and collusion charges remain in FX as well, but the later start of FX allegations, the complexity of the cases and the continuing regulatory and internal bank investigations, means that further clarity will not be forthcoming until at least late 2014.

Wednesday, March 5, 2014

BOE FX Group Meeting Notes: FX Benchmark Rates and Concern on FX Options Discussed in 2006

While recent press reports indicated that FX dealers said that the BOE had discussed WM Reuters fix trading in 2012, BOE minutes and discussions from the BOE FX Chief dealers meetings just released confirm this. However,the minutes also include from a mid-2006 meeting that there was evidence of attempts to move the market during certain fix periods.  Meetings in 2008 and 2009 also included this topic.

In addition, earlier reports indicated that some of the regulatory FX investigations include a review of option trading, particularly the attempts to defend or breach particular FX spot rates.  The BOE meetings notes now show a discussion at a 2006 Group meeting that bank FX systems could be manipulated in such attempts.  (Certain option position values can be dramatically effected by a particular spot rate at a particular time).

Thus these two issues were discussed at BOE meetings.  Today the BOE suspended a staff member .  While mentioning that there was no evidence of collusion by BOE employees regarding these issues, it was hinted that the suspension may be related to not raising these issues with the next level of BOE authority. The BOE also reported that the last of the FX Chief Dealers Group meetings was held in February 2013.  A subsequent meeting was scheduled but never held.

This information indicates to us that the regulatory investigations into FX benchmark rates are continuing at full speed.  If, in addition, there were attempts to manipulate spot rates to impact option positions, that would seem a more complicated investigation with less certainty of exposing any manipulation even if it did occur. This would more likely involve individual market actors without as clear a goal as a daily published fixing.

Tuesday, February 18, 2014

FX Benchmarks for Indonesia's Currency Changing to Rectify Deficiencies found by MAS

Another aspect of the widening of the FX probes - Reuters reports that Singapore banks will no longer set the benchmark rates for the Indonesian rupiah. This follows last years's investigation by the Monetary Authority of Singapore which censured traders for attempts to manipulate both interest rates and currency rates, including ones used in the pricing of Southeast Asian non-deliverable forward FX contracts.  

News stories have spread from the original London close benchmark rate to other FX benchmarks and also include reports of collusion, traders trading for their personal accounts, sharing client orders with certain clients and trades against client interests relating to option levels.  Investigations by regulators around the world continue.