(a) Trading positions.
(1) Identification
of trading positions. A Board-regulated institution must have
clearly defined policies and procedures for determining which of its
trading assets and trading liabilities are trading positions and which
of its trading positions are correlation trading positions. These
policies and procedures must take into account:
(i) The
extent to which a position, or a hedge of its material risks, can
be marked-to-market daily by reference to a two-way market; and
(ii) Possible impairments
to the liquidity of a position or its hedge.
(2) Trading and hedging strategies. A Board-regulated institution
must have clearly defined trading and hedging strategies for its trading
positions that are approved by senior management of the Board-regulated
institution.
(i) The trading strategy must articulate
the expected holding period of, and the market risk associated with,
each portfolio of trading positions.
(ii) The hedging strategy must articulate
for each portfolio of trading positions the level of market risk the
Board-regulated institution is willing to accept and must detail the
instruments, techniques, and strategies the Board-regulated institution
will use to hedge the risk of the portfolio.
(b) Management of covered
positions.
(1) Active management. A Board-regulated institution must have clearly defined policies
and procedures for actively managing all covered positions. At a minimum,
these policies and procedures must require:
(i) Marking positions
to market or to model on a daily basis;
(ii) Daily assessment of the Board-regulated
institution’s ability to hedge position and portfolio risks, and of
the extent of market liquidity;
(iii) Establishment and daily monitoring
of limits on positions by a risk control unit independent of the trading
business unit;
(iv)
Daily monitoring by senior management of information described in
paragraphs (b)(1)(i) through (b)(1)(iii) of this section;
(v) At least annual reassessment
of established limits on positions by senior management; and
(vi) At least annual assessments
by qualified personnel of the quality of market inputs to the valuation
process, the soundness of key assumptions, the reliability of parameter
estimation in pricing models, and the stability and accuracy of model
calibration under alternative market scenarios.
(2) Valuation of covered positions. The Board-regulated institution
must have a process for prudent valuation of its covered positions
that includes policies and procedures on the valuation of positions,
marking positions to market or to model, independent price verification,
and valuation adjustments or reserves. The valuation process must
consider, as appropriate, unearned credit spreads, close-out costs,
early termination costs, investing and funding costs, liquidity, and
model risk.
(c) Requirements for internal models.
(1) A Board-regulated institution must
obtain the prior written approval of the Board before using any internal
model to calculate its risk-based capital requirement under this subpart.
(2) A Board-regulated
institution must meet all of the requirements of this section on an
ongoing basis. The Board-regulated institution must promptly notify
the Board when:
(i) The Board-regulated institution
plans to extend the use of a model that the Board has approved under
this subpart to an additional business line or product type;
(ii) The Board-regulated
institution makes any change to an internal model approved by the
Board under this subpart that would result in a material change in
the Board-regulated institution’s risk-weighted asset amount for a
portfolio of covered positions; or
(iii) The Board-regulated institution
makes any material change to its modeling assumptions.
(3) The Board may rescind
its approval of the use of any internal model (in whole or in part)
or of the determination of the approach under section 217.209(a)(2)(ii)
for a Board-regulated institution’s modeled correlation trading positions
and determine an appropriate capital requirement for the covered positions
to which the model would apply, if the Board determines that the model
no longer complies with this subpart or fails to reflect accurately
the risks of the Board-regulated institution’s covered positions.
(4) The Board-regulated
institution must periodically, but no less frequently than annually,
review its internal models in light of developments in financial markets
and modeling technologies, and enhance those models as appropriate
to ensure that they continue to meet the Board’s standards for model
approval and employ risk measurement methodologies that are most appropriate
for the Board-regulated institution’s covered positions.
(5) The Board-regulated institution
must incorporate its internal models into its risk management process
and integrate the internal models used for calculating its VaR-based
measure into its daily risk management process.
(6) The level of sophistication
of a Board-regulated institution’s internal models must be commensurate
with the complexity and amount of its covered positions. A Board-regulated
institution’s internal models may use any of the generally accepted
approaches, including but not limited to variance-covariance models,
historical simulations, or Monte Carlo simulations, to measure market
risk.
(7) The Board-regulated
institution’s internal models must properly measure all the material
risks in the covered positions to which they are applied.
(8) The Board-regulated institution’s
internal models must conservatively assess the risks arising from
less liquid positions and positions with limited price transparency
under realistic market scenarios.
(9) The Board-regulated institution must
have a rigorous and well-defined process for re-estimating, re-evaluating,
and updating its internal models to ensure continued applicability
and relevance.
(10)
If a Board-regulated institution uses internal models to measure specific
risk, the internal models must also satisfy the requirements in paragraph
(b)(1) of section 217.207.
(d) Control, oversight, and validation mechanisms.
(1) The Board-regulated institution
must have a risk control unit that reports directly to senior management
and is independent from the business trading units.
(2) The Board-regulated institution must
validate its internal models initially and on an ongoing basis. The
Board-regulated institution’s validation process must be independent
of the internal models’ development, implementation, and operation,
or the validation process must be subjected to an independent review
of its adequacy and effectiveness. Validation must include:
(i) An evaluation
of the conceptual soundness of (including developmental evidence supporting)
the internal models;
(ii) An ongoing monitoring process that includes verification of
processes and the comparison of the Board-regulated institution’s
model outputs with relevant internal and external data sources or
estimation techniques; and
(iii) An outcomes analysis process that
includes backtesting. For internal models used to calculate the VaR-based
measure, this process must include a comparison of the changes in
the Board-regulated institution’s portfolio value that would have
occurred were end-of-day positions to remain unchanged (therefore,
excluding fees, commissions, reserves, net interest income, and intraday
trading) with VaR-based measures during a sample period not used in
model development.
(3) The Board-regulated institution must
stress test the market risk of its covered positions at a frequency
appropriate to each portfolio, and in no case less frequently than
quarterly. The stress tests must take into account concentration risk
(including but not limited to concentrations in single issuers, industries,
sectors, or markets), illiquidity under stressed market conditions,
and risks arising from the Board-regulated institution’s trading activities
that may not be adequately captured in its internal models.
(4) The Board-regulated institution
must have an internal audit function independent of business-line
management that at least annually assesses the effectiveness of the
controls supporting the Board-regulated institution’s market risk
measurement systems, including the activities of the business trading
units and independent risk control unit, compliance with policies
and procedures, and calculation of the Board-regulated institution’s
measures for market risk under this subpart. At least annually, the
internal audit function must report its findings to the Board-regulated
institution’s board of directors (or a committee thereof).
(e) Internal assessment
of capital adequacy. The Board-regulated institution must have
a rigorous process for assessing its overall capital adequacy in relation
to its market risk. The assessment must take into account risks that
may not be captured fully in the VaR-based measure, including concentration
and liquidity risk under stressed market conditions.
(f) Documentation. The Board-regulated
institution must adequately document all material aspects of its internal
models, management and valuation of covered positions, control, oversight,
validation and review processes and results, and internal assessment
of capital adequacy.