Executive Summary
On March 19, 2026, the Federal Reserve Board, the FDIC, and the OCC jointly released three landmark proposals to modernize the U.S. bank regulatory capital framework. This is the most comprehensive overhaul of bank capital rules since the post-financial crisis reforms and represents a fundamental rethinking of the 2023 Basel III Endgame proposal.
Bottom Line: Unambiguously Bullish for Bank Equities
- CET1 requirements for the largest banks (Cat I & II) decline 4.8% cumulatively, freeing ~$42 billion in excess capital
- GSIB surcharges cut by ~40 basis points on average (10% aggregate reduction) — the single largest driver
- Mid-size banks (Cat III & IV) see 5.2% CET1 reduction; smaller banks see 7.8%
- MSA deduction eliminated from CET1 capital — transformational for mortgage origination/servicing
- Framework simplified from dual-calculation to single "expanded risk-based approach"
Key Beneficiaries
Most Bullish For
JPM, GS, MS — Trading-heavy GSIBs benefit from market risk recalibration + GSIB surcharge cut
Significant Beneficiaries
BAC, WFC, C — Large mortgage books benefit from MSA deduction removal + lower credit risk weights
Regional/Mid-Size Winners
USB, PNC, TFC — 7.8% CET1 reduction for smaller banks + LTV-based mortgage risk weights
Custody/Wealth Mgmt
BK, STT — Operational risk calibration recognizes lower-risk nature of custody/investment management
1. The Three Proposals — Architecture
The agencies issued three interconnected but distinct proposals targeting different segments of the banking system:
| Proposal | Scope | Primary Impact | Pages |
|---|---|---|---|
| 1. Expanded Risk-Based Approach | Category I & II banks (8 U.S. GSIBs + 1 Cat II) | +1.4% CET1 standalone; single framework replaces dual-calc | 1,241 |
| 2. Standardized Approach | All other banks (Cat III, IV, smaller) | -3.0% CET1 for Cat III/IV; -7.8% for smaller banks | 436 |
| 3. GSIB Surcharge Reform | 8 U.S. GSIBs (Fed only) | -3.8% CET1 via surcharge recalibration | 128 |
Comments due by June 18, 2026. The agencies explicitly considered overlaps among requirements — particularly between Basel III capital charges and stress testing — and sought to eliminate double-counting.
Current vs. Proposed Framework
| Component | Current | Proposed |
|---|---|---|
| Risk-based calculation | Dual: Standardized + Advanced | Single: Expanded Risk-Based Approach |
| Credit risk | Blunt risk weights (e.g., 100% all corporates) | Granular: LTV-based mortgages, credit quality corporates |
| Operational risk | Internal models (advanced) or none | Standardized formula based on business volume |
| Market risk | VaR-based models | Expected Shortfall (better tail risk capture) |
| CVA risk | Advanced: models; Standardized: none | Explicit standardized CVA capital requirement |
| MSA treatment | Deducted from CET1 above 25% threshold | No deduction; 250% risk weight |
| GSIB surcharge | Fixed coefficients (2012-13); 50bp bands | GDP-indexed coefficients; 10bp bands |
2. Basel III Expanded Risk-Based Approach
Applies to: Category I & II banking organizations (8 U.S. GSIBs + 1 Cat II). All others may opt in.
2.1 Simplification: One Set of Capital Ratios
The most structurally significant change: Cat I & II banks calculate only one set of risk-based capital ratios. The advanced approaches are permanently removed. Eliminates ~40,000+ compliance hours annually across the system.
2.2 Credit Risk: LTV-Based Risk Weights
| LTV Ratio | Risk Weight (Not CRE-Dependent) | Risk Weight (CRE-Dependent) |
|---|---|---|
| ≤50% | 20% | 50% |
| 50-60% | 25% | 55% |
| 60-70% | 30% | 60% |
| 70-80% | 40% | 70% |
| 80-90% | 55% | 80% |
| 90-100% | 70% | 90% |
| >100% | 100% | 110% |
2.3 Operational Risk: Standardized Formula
Business Indicator (BI) calculated from income/expenses with adjustments for lower-risk activities (investment management, custody, non-lending treasury). Critical for BK and STT — reverses the 2023 proposal's penalty on fee-based models.
2.4 Market Risk: Expected Shortfall Replaces VaR
Expected Shortfall better captures tail risk. Different liquidity horizons incorporated. Diversification more fully recognized vs. Basel Committee standard. Market risk RWA increases ~20% standalone but offset by stress test changes.
2.5 CVA Risk: New Explicit Requirement
Credit Valuation Adjustment risk charge for derivative counterparty deterioration. Client-facing derivatives exempt. CVA RWA: ~$245B across reporting banks.
2.6 Standalone Capital Impact
| Metric | Cat I & II BHCs | Cat I & II Depository Institutions |
|---|---|---|
| CET1 impact | +1.4% | -4.8% |
| Tier 1 impact | +1.6% | -2.3% |
| RWA change vs. standardized | +1.9% | -3.0% |
| Market risk RWA change | +20% | +21% |
3. Standardized Approach Modernization
Applies to: All banking organizations except Category I & II.
Key Risk Weight Changes
| Exposure Category | Current | Proposed | Change |
|---|---|---|---|
| Corporate exposures | 100% | 95% | -5pp |
| "Other assets" (catch-all) | 100% | 90% | -10pp |
| Residential mortgages | 50% (flat) | 20-100% (LTV-based) | Variable |
| MSAs above threshold | Deducted from CET1 | 250% risk weight (no deduction) | Major relief |
AOCI Recognition for Cat III & IV
SVB Lesson Applied
Category III & IV banks would be required to include AOCI (unrealized gains/losses on AFS securities) in regulatory capital. Five-year phase-in. Estimated impact: +3.1% to CET1 requirements, partially offsetting the 6.1% reduction from lower risk weights.
Net Capital Impact
| Bank Category | RWA Impact | AOCI Impact | Net CET1 |
|---|---|---|---|
| Cat III & IV HCs | -6.1% | +3.1% | -3.0% |
| Cat III & IV DIs | -7.8% | +3.1% | -4.7% |
| Smaller banks (<$100B) | -7.8% | N/A | -7.8% |
4. GSIB Surcharge Reform (Fed Only)
The single largest driver of capital relief for the 8 U.S. GSIBs. Addresses a fundamental flaw: fixed Method 2 coefficients haven't been updated since 2015.
The Method 2 Drift Problem
Between Q4 2019 and Q4 2024: Method 2 scores increased 18% while Method 1 scores decreased 3%. The 20 percentage point divergence is entirely attributable to fixed coefficients not adjusting for GDP growth, inflation, and pandemic-era balance sheet expansion.
Five Key Reforms
| Reform | Description | Impact |
|---|---|---|
| 1. One-time coefficient adjustment | Divide Method 2 coefficients by 1.2 (20% reduction) | Largest single impact |
| 2. Annual GDP indexing | 3-year moving avg of nominal U.S. GDP growth | Prevents future drift |
| 3. STWF score reform | Remove RWA denominator; recalibrate to 20% weight | Reduces distortion |
| 4. Narrow score bands | 10bp increments instead of 50bp | Eliminates cliff effects |
| 5. Data averaging | Daily/monthly averages replace year-end point-in-time | Eliminates window dressing |
GSIB Surcharge Impact
| Metric | Current | Proposed | Change |
|---|---|---|---|
| Average GSIB surcharge | 2.7% | 2.3% | -40bps |
| Highest surcharge | 4.5% | 4.3% | -20bps |
| Aggregate surcharge ($B) | $235B | $212B | -$23B (-10.0%) |
| Aggregate TLAC req. | $1.79T | $1.74T | -$46B (-2.6%) |
5. Cumulative Capital Impact Analysis
The three proposals must be evaluated together with concurrent stress test and eSLR changes:
| Reform | Standalone CET1 | Cumulative CET1 | Cumulative Tier 1 |
|---|---|---|---|
| Starting point (current rules) | — | — | — |
| + Recent eSLR changes | — | — | -2.3% |
| + Basel III proposal | +1.4% | +1.4% | -0.7% |
| + GSIB surcharge proposal | -3.8% | -2.4% | -3.9% |
| + Proposed stress test changes | -2.4% | -4.8% | -6.0% |
What Can Banks Do With $42 Billion?
$30-40B additional capacity
50-75bps yield increase
$300-400B in additional RW lending capacity
Meaningful headroom for strategic acquisitions
6. Impact by Risk Type
| Risk Type | Current Binding ($B) | Combined Proposals ($B) | % Change |
|---|---|---|---|
| Credit risk | $680B | $612B | -10.0% |
| Operational risk | $113B | $130B | +14.9% |
| Market risk | $49B | $42B | -5.8% |
| CVA risk | $17B | $34B | +96.0% |
| Total | $860B | $818B | -4.8% |
- Credit risk is the big winner (-10.0%) — lower risk weights for mortgages, corporates drive bulk of relief
- Market risk declines (-5.8%) — 20% RWA increase more than offset by stress test GMS changes
- CVA nearly doubles (+96%) but from tiny base ($17B → $34B), still only 4% of total
7. Impact by Banking Activity
Traditional Lending
Residential mortgages: Significant decrease (LTV-based risk weights + MSA removal)
Corporate lending: Moderate decrease (100% → 95%)
Retail: Modest decrease (repayment-history adjustments)
Trading Activities
Market risk RWA increases ~20% under Basel III but Global Market Shock recalibrated in stress testing.
Net effect: -5.8% in market risk capital requirements.
Credit Facilitation
Financial sector lending, Treasury holdings, guarantees see moderate decreases. Granular bank exposure risk weights replace blunt 100% treatment.
Other Banking Services
Investment management, custody, advisory see favorable treatment under OpRisk formula. Direct reversal from 2023 proposal.
8. GSIB-by-GSIB Valuation Impact
Current Market Prices (March 19, 2026)
| Ticker | Price | Category | Primary Benefit | Signal |
|---|---|---|---|---|
| JPM | $287.97 | GSIB | Highest GSIB surcharge cut (4.5% current) | POSITIVE |
| BAC | $47.01 | GSIB | Credit risk weight reduction (mortgage/consumer) | POSITIVE |
| WFC | $76.39 | GSIB | MSA deduction removal (largest servicer) | STRONG POSITIVE |
| GS | $809.50 | GSIB | GSIB surcharge cut + market risk net relief | POSITIVE |
| MS | $158.55 | GSIB | Wealth mgmt OpRisk calibration | POSITIVE |
| C | $109.85 | GSIB | GSIB surcharge cut + cross-jurisdictional simplification | POSITIVE |
| BK | $114.90 | GSIB | OpRisk calibration for custody | STRONG POSITIVE |
| STT | $120.95 | GSIB | OpRisk calibration for custody | STRONG POSITIVE |
Tier 1 — Outsized Beneficiaries
WFC: MSA deduction removal is transformational. Wells Fargo is the largest mortgage servicer. Removal + 250% risk weight = dramatically more capital-efficient mortgage operations.
BK & STT: The 2023 proposal would have massively increased OpRisk charges for custody banks. This proposal explicitly adjusts for lower operational risk of investment management/custody. Complete reversal.
JPM & GS: Highest GSIB surcharges (4.5% and ~3.5%). The 40bps average reduction has the largest absolute dollar impact.
9. Winners and Losers
Winners
| Segment | Impact | Mechanism |
|---|---|---|
| U.S. GSIBs | STRONG + | 4.8% CET1 reduction; GSIB surcharge cut; framework simplification |
| Mortgage originators/servicers | STRONG + | MSA deduction removal; LTV-based risk weights |
| Custody banks | STRONG + | OpRisk calibration reversal from 2023 |
| Regional banks ($100B+) | POSITIVE | 3-5% CET1 reduction; LTV-based mortgage risk weights |
| Community banks | POSITIVE | 7.8% CET1 reduction; lower corporate & other risk weights |
| Wealth management | POSITIVE | OpRisk adjustments recognize lower-risk fee activities |
Relative Losers (Still Positive)
| Segment | Impact | Mechanism |
|---|---|---|
| Derivative-heavy dealers | MODEST + | CVA risk charge nearly doubles (+96%); offset by other reductions |
| Non-bank mortgage lenders | PRESSURE | Banks become more competitive as MSA penalty removed |
| Non-bank financial intermediaries | PRESSURE | Lower bank capital may reverse activity migration to non-banks |
10. What Changed vs. 2023 Basel III Endgame
The Swing: +19% → -4.8% = ~24 Percentage Point Reversal
This is the largest positive regulatory surprise for bank equities in over a decade.
| Dimension | 2023 Proposal | 2026 Proposal |
|---|---|---|
| CET1 impact (Cat I & II) | +19% | -4.8% (cumulative) |
| Output floor | Yes (72.5% of standardized) | Removed |
| Advanced approaches | Retained alongside expanded | Eliminated entirely |
| OpRisk calibration | Penalized custody/investment mgmt | Adjusted for lower-risk activities |
| Market risk | BCBS-aligned (limited diversification) | U.S.-specific (fuller diversification) |
| MSA treatment | Still partially deducted | Full deduction removal |
| GSIB surcharge | No changes | -40bps average (-10% aggregate) |
| Stress test interaction | Not considered | Concurrent changes avoid double-counting |
11. Implementation Timeline & Political Context
| Date | Event |
|---|---|
| March 19, 2026 | Proposals released for comment |
| June 18, 2026 | Comment period closes (90 days) |
| Q3-Q4 2026 | Agencies review comments; potential modifications |
| Q1 2027 (est.) | Final rules published |
| Q2 2027 - Q2 2028 | Phased implementation |
| 5-year phase-in | AOCI recognition for Cat III & IV banks |
Political context: Trump administration's deregulatory posture, Fed Chair Powell publicly stated 2023 proposal needed revision, bipartisan support, all three agencies aligned. Base case: final rules by Q1 2027.
12. Investment Implications & Trade Expressions
Long WFC
Single biggest winner from MSA deduction removal + LTV-based mortgage risk weights. Transformational for mortgage servicing economics.
Long BK + STT
OpRisk calibration reversal removes 2023 existential overhang on custody business models.
Long XLF
Broad sector re-rating from 4.8% CET1 reduction + buyback/dividend acceleration catalyst.
Long C (Contrarian)
Deepest discount to tangible book. Capital relief disproportionately benefits capital-constrained banks.
What the Market May Be Missing
- Stress test interaction: The 2.4% CET1 reduction from stress test changes is in addition to Basel III + GSIB surcharge. Most models may not incorporate all four pillars.
- MSA economics: Fundamentally changes mortgage servicing economics, potentially reversing decade-long migration to non-banks.
- Opt-in dynamics: Some Cat III/IV banks may elect expanded approach, creating second wave of 3-7% CET1 reductions.
- TLAC relief: $46B reduction in aggregate TLAC means GSIBs can reduce long-term debt issuance, lowering funding costs.
13. Risks to the Thesis
| Risk | Probability | Impact |
|---|---|---|
| Comment period produces significant pushback | LOW | Delays or modifications |
| Political regime change before finalization | LOW | Could stall implementation |
| Credit cycle deterioration | MODERATE | Actual losses offset capital relief |
| Iran/geopolitical escalation | MODERATE | Risk-off overwhelms regulatory catalyst |
| Implementation takes longer than expected | MODERATE | Delays capital deployment |
Bear Case
$42B represents only 4.8% of $860B — banks already hold 200-400bps above requirements. Banks may retain capital given macro uncertainty. These are still proposals — 90-day comment period + potential modifications. Stress capital buffer remains subject to annual test volatility.
14. Sources
Primary Documents (Released March 19, 2026)
- Board of Governors, "Fact Sheet: Proposals to Modernize the Regulatory Capital Framework"
- Board of Governors, "Staff Memo to the Board: Basel III, GSIB Surcharge, and Standardized Approach Proposals" (14 pages)
- OCC/Fed/FDIC, "Expanded Risk-Based Proposal" — NPR (1,241 pages)
- Federal Reserve, "GSIB Surcharge Proposal" — NPR (128 pages)
- OCC/Fed/FDIC, "Standardized Approach Proposal" — NPR (436 pages)
- OCC/Fed/FDIC, "Special Collection Aggregate Release" (Excel data + description)
- OCC/Fed/FDIC, "Proposed Agency Information Collection Activities; Comment Request" (27 pages)
Related Proposals
- Board of Governors, "Enhanced Transparency and Public Accountability of the Supervisory Stress Test," 90 FR 51856, Nov. 18, 2025
- Board of Governors, "Modifications to the Capital Plan Rule and Stress Capital Buffer Requirement," 90 FR 16843, Apr. 22, 2025
- Board of Governors, "Enhanced Supplementary Leverage Ratio Standards," 90 FR 55248, Dec. 1, 2025
- Basel Committee on Banking Supervision, "Basel III: Finalising Post-Crisis Reforms," Dec. 2017
Disclaimer
This report is based exclusively on official documents released by the Federal Reserve Board, FDIC, and OCC on March 19, 2026. All figures are agency estimates and may change during the rulemaking process. This is not investment advice. Past performance is not indicative of future results. All investments carry risk of loss.