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Who this guide is for

This guide is for people seriously considering Institutional Sales (IS) and Prime Brokerage (PB) at a securities firm. Instead of stopping at the abstract "client-facing role" description, it digs into who you face, in which time zone, in which language, how a PB desk runs a `$50bn` book, and why incidents like Archegos happen.

- Undergraduate or MBA candidates aiming for IS/PB at a securities firm

- Junior traders or IB analysts considering a switch into IS

- Buy-side analysts thinking about a buy-side sales seat

- Candidates targeting Korea or Tokyo desk seats at a foreign bank

- People in PB operations or risk who want to move into sales

The phrase "client-facing job" does not mean "friendly people job." It means a job that only works when you understand who sits across from you, how their P&L is built, and what pressure they are under when they pick up your call.

Why IS and PB are the "client-facing" job

Every role inside a securities firm faces someone, but IS and PB are unique in that the counterparty is extremely specific and extremely demanding. A long-only PM has their fund NAV reported daily. A hedge fund PM reports quarterly to LPs. They are not swayed by one or two "great ideas." They meet hundreds of sell-side salespeople per year and concentrate wallet share on a handful.

The job has three essences:

1. Earning the right to take the client's time

2. Picking up the phone when the client lost money, not avoiding it

3. Reading the client's next-quarter KPI before they tell you

If a research analyst is the "writing job," then IS and PB are the job of taking that writing and walking into the room with it. Good writing without distribution does nothing, and average writing with strong distribution can still win. But distribution alone does not last five years. The market eventually grades you in numbers.

Who you face: the six institutional categories

The first step in client-facing work is naming who you face. A single IS salesperson does not cover everyone. The desk splits the coverage.

| ------------------------------ | ------------------------- | ------------------------------------- | ---------------------- | ---------------------------- |

Each category has a different call tone. Calling a pension fund with excitement about short-term volatility means they will not pick up the next call. Calling a hedge fund with "long-term fundamentals" only means they will hang up. The client-facing job is the job of matching the client's time horizon.

A real day: 6:30am market scan to midnight client dinner

A weekday in the life of an institutional salesperson at a foreign bank's Seoul desk.

06:30 Bloomberg + Reuters morning briefing, KOSPI prior close, foreign flows

06:50 Email "morning note" to 5 coverage PMs (1-line view + 3 trade ideas)

07:30 Arrive at desk, morning huddle with sector research analysts

08:00 Morning Meeting: global macro + sector views + S&T trader color

08:45 Sync with global desks via Hong Kong (post US close)

09:00 KOSPI open. Most active hour. Foreign flows + client calls

10:30 Lunch meeting 1: 1:1 with long-only PM (single-name view + position read)

12:00 Back to desk, log conversation, update CRM

13:00 Lunch meeting 2: hedge fund PM (idea pitch + execution plan)

14:30 Visit AM with sector specialist (analyst pairing)

15:30 Last 30 min before KOSPI close. Block trades, average price reporting

16:00 Post-mortem: best call / worst call / missed opportunities

17:00 Calendar prep for tomorrow, research publication schedule

18:00 Conference call with US desk (global wrap)

19:30 Client dinner: head of equity at top AM + own desk head

22:00 Dinner ends, draft tomorrow's morning note from home

23:30 Sleep. 6:30 again tomorrow.

12 hours on the desk plus 4 hours entertaining. Five days a week. The first filter for IS is whether you have the stamina and curiosity to sustain this rhythm.

IS sub-tracks: six lanes inside the desk

IS is not a monolith. It splits by asset class and client type.

Equity Sales

├─ Cash Equity Sales — Cash equities, AM/pension coverage

├─ Long-Only Sales — Long-only PM coverage only

├─ Hedge Fund Sales — Hedge fund coverage only

└─ Sector Specialist Sales — Semis, biotech, batteries specialist

FICC Sales

├─ Rates Sales — Govies, IRS, swaps

├─ Credit Sales — Corporate bonds, CDS

├─ FX Sales — Spot FX, NDF

└─ Commodities Sales — Commodities (small in Korea)

Derivatives Sales — Options, structured notes, warrants

Equity Capital Markets Sales — IPO/follow-on placement

Prime Brokerage Sales — Cap intro + PB origination

Sales Trader — Sales/trader hybrid, quoting + execution

Equity Sales and PB Sales see the "same" client through different lenses. Equity Sales asks "Are you buying this stock today?" PB Sales asks "What infrastructure do you need so your fund can scale?"

What Prime Brokerage actually is

In one line: PB is a bundled offering combining "hedge fund back office plus financing plus LP introduction." There are six core services.

| Service | What it is | Revenue model |

| ------------------------ | --------------------------------------- | ----------------------------------- |

| Custody | Fund asset safekeeping, settlement | Custody fee (bps) |

| Margin Financing | Lending cash for long positions | Financing spread (call money + bps) |

| Securities Lending | Stock loan for short positions | Lending fee (higher for Specials) |

| Clearing | Settlement with exchanges, CCPs | Per-trade clearing fee |

| Capital Introduction | Match hedge funds with LPs (allocators) | Indirect (relationship, wallet) |

| Risk Analytics + Reporting | Position, VaR, Greeks, NAV oversight | Bundled into custody/financing fee |

PB revenue is "quiet recurring fees." It is not one big fee but daily financing spread plus lending fee plus commission, stacked up. So a PB book needs each client to be `$1B-10B` in size to matter, and top-3 global PBs each manage `$500B-1T`.

Deeper PB mechanics: GC, Special, Rehypothecation

Three mechanics that come up in PB interviews.

1. GC (General Collateral) vs Special

─ GC: ample float in the market, lending fee = 5-25bps/year

─ Special: extreme short demand, fee = 200-2000bps/year (GME 2021 hit 1000%+)

─ IS monitors short interest data to find names trending Special

2. Triparty Repo

─ Three parties: borrower (hedge fund) + lender (bank) + triparty agent

(BNY Mellon, JPM, etc.)

─ Collateral valuation, marking, substitution handled by the agent

─ PB borrows cash on the hedge fund's behalf for financing

3. Rehypothecation

─ Collateral the hedge fund posts to PB gets reused by PB for its own funding

─ US: rehypothecation capped at 140% of customer debit (Reg T)

─ UK: no cap historically (why UK Lehman PB clients lost assets in 2008)

─ Post-2008, hedge funds explicitly state "rehypothecation cap" in PB

contracts

If you do not understand rehypothecation, you cannot explain why Lehman's bankruptcy shook the PB industry. When an interviewer asks "What are the risks of rehypothecation?", you should be able to explain how GS and MS scrambled to keep hedge funds in 2008.

The global PB Big 3: GS, MS, JPM

The PB industry is effectively controlled by the Big 3. Estimated 2024 figures.

| ------------------ | ---------------- | ---------------------- | --------------------------------- |

These are referred to as "Tier 1 PBs." The largest hedge funds (Citadel, Millennium, Bridgewater) always use 2-3 of the Big 3 in parallel (multi-PB structure, avoiding single-PB risk).

Other global PBs: 2nd tier and regional

Strong PBs outside the Big 3.

US-based

├─ Bank of America Securities PB — mid-cap HFs, equity PB

├─ Citi PB — multi-asset, FX, EM strength

└─ Wells Fargo (small)

Europe-based

├─ UBS PB — Equity PB strength, Swiss base

├─ BNP Paribas PB — Europe #1 after Deutsche Bank PB acquisition

├─ Société Générale PB — Equity derivatives PB strength

└─ Barclays PB — UK-based, FI PB

Asia-based

├─ Nomura International PB — covers Japanese HFs

├─ Daiwa Securities PB — Japan + Asia

└─ Mitsubishi UFJ Trust PB — Custody-focused

Deutsche Bank's 2019 sale of its PB business to BNP was a watershed moment that reshaped European PB. BNP became Europe's #1 PB after that.

Korean IS landscape: the top-5 desks

In Korea, IS is called "법인영업 (Beobin Yeongeop)." The main clients are foreign funds (FII flows), domestic AMs, and pensions.

| ---------------------- | ------------------------ | -------------------------- | ---------------- |

Korean market specifics: foreign flows account for over `30%` of KOSPI volume, so foreign hedge fund and long-only coverage is critical. About half of Korea IS calls happen in English.

Japanese IS landscape: the Tokyo desk structure

Unlike Korea, Japan is dominated by domestic capital (GPIF, Norinchukin, MUFG, and other large LPs).

| --------------------- | ----------------- | -------------------------- | ----------------------------- |

Tokyo desks have a heavy foreign-bank presence. Goldman Tokyo, Morgan Stanley MUFG, JP Morgan Tokyo, and Citi Tokyo capture over half of the Japanese hedge fund market.

IS sales cycle: from cold call to post-trade

IS sales cycles through six stages.

1. Cold Call / Onboarding

─ Pick up news of a new fund launch → first call → meeting

─ Compliance: KYC, AML, FATCA paperwork (2-6 weeks)

2. Periodic Touch

─ Daily morning note + weekly recap

─ Monthly sector deep-dive

─ Quarterly position review

3. Pitch

─ Call within an hour of research publication

─ Trade idea: entry, exit, size, risk

4. Execution

─ Sales hands the order to the trader

─ VWAP, TWAP, IS algo, or block

─ Large orders are sliced via program trading

5. Post-Trade

─ Average price + TCA (Transaction Cost Analysis)

─ Slippage report

─ Wallet share tracking

6. Annual Review

─ Annual review meeting with the client

─ Wallet share negotiation for the next year

─ Core input into sales compensation

Every stage has a measurable output. "We got closer" is not measurable. "Q3 wallet share went from `12%` to `15%`" is. IS evaluation only looks at the latter.

Capital Introduction (Cap Intro) mechanics

The highest value-add PB service is Cap Intro: matching hedge funds with LPs.

The four-step Cap Intro flow

Step 1: Sourcing

─ PB maintains a pool of hundreds of new/growing hedge fund managers

─ Strategy, AUM, performance, risk profile in a database

Step 2: Investor Mapping

─ Regular meetings with allocators (family offices, FoF, endowments,

pensions)

─ Each LP's mandate: equity L/S? Macro? Credit?

Step 3: Matching Event

─ Quarterly Cap Intro conferences (Goldman, MS run separately in Tokyo,

Hong Kong, New York)

─ 30 hedge funds + 60 LPs co-located in one venue

─ 1:1 speed-dating format (25 minutes each)

Step 4: Follow-up

─ PB manages follow-up for both sides

─ Due diligence packs, NDA coordination

─ Allocation decision → that hedge fund grows AUM → PB book grows

Cap Intro does not collect a direct fee, but as the hedge fund's AUM grows, financing, lending, and commission revenues all scale. That is why GS's #1 status in Cap Intro is not a coincidence.

Securities Lending mechanics and revenue model

Securities lending is the infrastructure of short selling. How does PB earn from it?

Securities Lending revenue example

A hedge fund wants to short 100,000 shares

Stock: hypothetical KOSPI name X at KRW 50,000

stock_price = 50_000 # KRW

shares_borrowed = 100_000

notional = stock_price * shares_borrowed # KRW 5,000,000,000 (5bn won)

1) Lending fee the hedge fund pays to PB

borrow_rate = 0.0050 # 50bps (GC average)

If Special: up to 0.10 (10%)

daily_lending_fee = notional * borrow_rate / 360

= 5_000_000_000 * 0.005 / 360 = KRW 694,444 per day

2) Lending fee PB pays to the actual asset holder (pension, AM)

lender_payout = notional * 0.0030 / 360 # 30bps

= KRW 416,666 per day

3) PB's spread

pb_spread_daily = daily_lending_fee - lender_payout

= 694,444 - 416,666 = KRW 277,778 per day

Annualized ≈ KRW 100M/year per single position

Special name (e.g., GameStop in 2021)

special_rate = 1.00 # 100% APR

daily_special_fee = notional * special_rate / 360

= 5_000_000_000 * 1.00 / 360 = KRW 13,888,888 per day

Annualized ≈ KRW 5bn per year per single position

A PB typically lends across thousands of positions simultaneously. The spread per position is small, but in aggregate a PB lending book can generate `$500M-1B` annual revenue.

Margin Financing and leverage mechanics

Hedge funds want to hold gross exposure beyond their equity. PB provides margin financing for that.

Margin Financing mechanics

Hedge fund equity $100M, 2x leverage to long $200M

hedge_fund_equity = 100_000_000 # $100M

target_gross = 200_000_000 # $200M

borrowed_from_pb = target_gross - hedge_fund_equity # $100M

PB financing rate

risk_free_rate = 0.045 # 4.5% (Fed funds)

pb_financing_spread = 0.0075 # 75bps

financing_rate = risk_free_rate + pb_financing_spread # 5.25%

annual_financing_revenue = borrowed_from_pb * pb_financing_spread

= 100_000_000 * 0.0075 = $750,000 per year

Margin requirement

initial_margin = 0.30 # Reg T 30% (US equity)

maintenance_margin = 0.25 # Reg T 25%

hedge_fund_required_equity = target_gross * maintenance_margin

= 200_000_000 * 0.25 = $50M (below this triggers margin call)

If the position is down -25% → equity = $100M - $50M = $50M

Exactly at maintenance margin → margin call imminent

Archegos collapsed because PBs did not require enough initial margin. More on this in the next section.

Archegos Capital incident (2021): the PB risk textbook

Bill Hwang's Archegos Capital Management (a family office) built a `$50-100B` position from `$10B` of capital in March 2021, and collapsed within a week. The event shook the entire PB industry.

Archegos timeline

T-0: Late 2020 - early 2021

─ Archegos accumulated concentrated TRS positions in ViacomCBS, Discovery

─ TRS counterparties: Goldman, MS, Credit Suisse, Nomura, UBS, MUFG

─ Each PB did not know how much Archegos had borrowed from the others

(the OTC nature of TRS)

T-1: 2021-03-22 (Mon)

─ ViacomCBS announced a capital raise → stock -23% in one week

─ Archegos equity started eroding

T0: 2021-03-24 (Wed)

─ Goldman, MS issued margin calls to Archegos

─ Archegos could not meet the calls

T+1: 2021-03-25 (Thu)

─ PBs held secret coordination meetings → coordinated unwind agreement failed

─ Goldman and MS started block-trade liquidation first

T+2: 2021-03-26 (Fri)

─ Credit Suisse and Nomura started liquidating late

─ Stocks already collapsed → outsized losses

Losses

─ Credit Suisse: $5.5B (a major factor in CS's later demise)

─ Nomura: $2.9B

─ Morgan Stanley: $1.0B (smaller because they sold early)

─ Goldman: about $0 (sold first)

─ UBS, MUFG: about $0.7B each

Five lessons:

1. A single family office can be a source of systemic risk

2. TRS creates information asymmetry across PBs (total notional not disclosed)

3. Insufficient initial margin turns into dead capital

4. Liquidation rewards the fastest PB (collective action fails)

5. Credit Suisse had weak PB risk culture, eventually absorbed by UBS in 2023

"What is your view on Archegos?" is almost a standard interview question. Avoid reciting facts. Frame it structurally: "PB counterparty risk starts with information asymmetry."

Lehman bankruptcy and PB flow (2008)

The PB textbook event before Archegos was Lehman Brothers' bankruptcy on 2008-09-15.

What Lehman PB clients lost

1. Custody Risk

─ Hedge funds with assets at Lehman PB had assets frozen

─ UK PB clients: unlimited rehypothecation → assets were trapped in Lehman

financing

─ US PB clients: 140% rehypothecation cap → some assets were recoverable

─ UK PB clients took 4-7 years to recover

2. Funding Run

─ Hedge funds rushed to move PB to other banks

─ GS, MS, JPM saw a revenue surge from absorbing Lehman clients

─ Even MS hit funding stress, secured $9B investment from MUFG

3. Regulatory Response

─ Dodd-Frank Act (2010) — capital rules on PB activity

─ Volcker Rule — limited proprietary trading

─ Basel III — higher risk weight on hedge fund exposure

Outcomes

─ Multi-PB structure became standard for large hedge funds

─ Rehypothecation caps written into PB contracts

─ Stronger risk management for tri-party repo

After Lehman, the term "single PB risk" entered the industry vocabulary. Any large hedge fund now uses 2-3 PBs simultaneously.

PB revenue stack: four sources

Looking inside a PB desk's P&L, four sources stand out.

| Source | Description | Share of PB book (est.) |

| ------------------- | ------------------------------------ | ----------------------- |

| Financing Spread | Margin financing interest spread | about `40-50%` |

| Securities Lending | Stock lending fee spread | about `25-30%` |

| Commission | Execution commission | about `10-15%` |

| Cap Intro / Reporting | Small explicit fee, wallet expansion | about `10%` |

This structure explains why PB sales is a long-term relationship game. A single day's commission matters less than the financing spread that accumulates every day.

Risk Management: PB internal risk

PB absorbs hedge fund risk. PB's own risk management is just as critical.

PB concentration risk monitoring example

PB book by hedge fund exposure

hedge_funds = pd.DataFrame({

'fund_name': ['Macro_HF_A', 'Equity_LS_B', 'Multi_Strat_C', 'Credit_D'],

'gross_exposure_usd_bn': [12.0, 8.0, 25.0, 5.0],

'net_exposure_usd_bn': [3.0, 2.0, 1.5, 4.0],

'leverage': [4.0, 4.0, 16.67, 1.25],

'top_position_pct': [0.15, 0.08, 0.05, 0.25],

})

Concentration metrics

total_gross = hedge_funds['gross_exposure_usd_bn'].sum()

hedge_funds['pct_of_pb_book'] = (

hedge_funds['gross_exposure_usd_bn'] / total_gross

)

Risk flags

hedge_funds['flag_high_leverage'] = hedge_funds['leverage'] > 10

hedge_funds['flag_concentrated'] = hedge_funds['top_position_pct'] > 0.10

hedge_funds['flag_large_in_book'] = hedge_funds['pct_of_pb_book'] > 0.30

Margin call simulation

def margin_call_required(gross, equity, mm_pct=0.25):

"""Maintenance margin = 25%"""

required_equity = gross * mm_pct

return max(0, required_equity - equity)

VaR for the PB book

95% confidence, 1-day horizon, parametric VaR

portfolio_vol_daily = 0.018 # 1.8% daily vol

var_95 = 1.645 * portfolio_vol_daily * total_gross

= $1.49B (single-day 95% VaR for a $50B book)

PB risk managers run analyses like this dozens of times per day. After Archegos, every PB has strengthened concentrated single-name exposure monitoring.

KPIs: how you are graded

IS and PB are evaluated annually. The KPIs vary by firm but share a common set.

| ---------------------------- | -------------------- | ------------------ | ----------------------------------- |

For analysts in years 1-2, "staying on top of news and never missing follow-up" matters more than wallet share. From VP up, wallet share numbers dominate.

20 interview questions for IS/PB

Real questions asked in interviews.

**Basic / motivation**

1. Why sales instead of trading?

2. Convince me you can sit at a desk 12 hours a day for five years.

3. Walk me through the toughest client interaction you have handled (hypothetical is fine).

**Market / macro**

4. Explain in 30 seconds why KOSPI / S&P moved the way it did today.

5. What is your view on the Fed's next rate decision?

6. Name three indicators you track for foreign flows.

**Cold call simulation**

7. Right now, role-play a 5-minute trade pitch to a hypothetical AM PM.

8. Your PM says "not interested." How do you save the conversation in 30 seconds?

**PB mechanics**

9. Difference between GC and Special in securities lending?

10. What is rehypothecation and why is it risky?

11. How is the spread on margin financing determined?

**Risk / incidents**

12. Explain Archegos in your own words. What went wrong?

13. How did PB clients lose money during Lehman's collapse?

14. Trade-off between single-PB risk and multi-PB structure?

**Client / relationship**

15. Your PM disagrees with another sell-side. How do you handle it?

16. You pitched a bad idea and the PM lost money. What do you do?

**Technical / analytical**

17. Top three metrics in TCA (Transaction Cost Analysis)?

18. Difference between VWAP, TWAP, and IS algo?

**Career**

19. What kind of salesperson do you want to be in five years? In ten?

20. If you were head of PB, how would you prioritize onboarding new hedge fund clients?

About half of these have no "correct" answer; the interviewer is watching your thought process. Show the structure: "Given inputs A, B → judgment criterion C → conclusion D."

Compensation: Korea, Japan, US/HK

Compensation by region for IS/PB, analyst through MD (2025 estimates, FX varies).

| -------------------- | ------------------------ | -------------------------- | ------------------------ |

PB Sales tends to pay slightly above IS Equity Sales (PB is capital-intensive with stronger lock-in). Foreign bank Korea desks pay roughly 1.5-2x domestic Korean securities firms.

Caveat: bonus volatility is real. Good years can be 200-300% of base; bad years can be 0%. The average looks similar across regions but the variance is wide.

Career path: Junior to MD

Year 1-3: Junior Associate / Analyst

─ Morning notes, data prep

─ Shadowing senior client meetings

─ CRM management, compliance paperwork

─ KPI: morning note accuracy, follow-up speed

Year 3-6: Senior Associate

─ Own coverage (5-10 small AMs)

─ Joint AM visits with senior colleagues

─ Pitching small trade ideas

─ KPI: wallet share growth, commission

Year 6-10: VP

─ Lead coverage on large AMs / hedge funds

─ Mentoring juniors

─ Leads quarterly review meetings

─ KPI: wallet share, cross-sell, new client onboarding

Year 10-15: Director / Executive Director

─ Strategic relationship with top-tier clients

─ Sector / Product head

─ KPI: portion of desk P&L

Year 15+: Managing Director (MD)

─ Head of Equity Sales, Head of PB, etc.

─ Hiring, P&L ownership

─ Regular dialogue with Compliance + Risk

─ KPI: total desk P&L

VP usually takes 7-10 years, MD 12-18 years. Many people also move to buy-side mid-career (typically junior years to AM/HF PM seats).

90-day learning routine for new hires

A concrete week-by-week plan for the first 90 days.

Weeks 1-2: Firm + systems

─ Memorize 30 core Bloomberg screens (TOP, ECO, WEI, BBLG, NSE, etc.)

─ Learn the desk's CRM (Salesforce, Sales Connect, internal tool)

─ Complete compliance training (mandatory at every firm)

─ Understand morning meeting format and per-manager role

Weeks 3-4: Markets + research

─ 30-min 1:1 with each of the desk's 5 sector research analysts

─ Read 50 research reports from the last year

─ Draft daily morning notes (reviewed by senior)

Weeks 5-6: Clients + coverage

─ Memorize senior's client list (PM names, strategy, AUM)

─ Analyze each client's last 12 months of trading patterns

─ Shadow 5-10 client meetings

Weeks 7-8: Trading + execution

─ Sit next to the sales trader for a week (how quotes work, how to hit

average price)

─ When to use VWAP, TWAP, or IS algo

─ How to read a TCA report

Weeks 9-10: PB / FICC fundamentals

─ 30-min meeting with the firm's PB / FICC head (cross-product context)

─ Visit the securities lending desk

─ Study margin financing mechanics

Weeks 11-12: First independent calls

─ Start independent calls on 1-2 small accounts (senior present)

─ Pitch one trade idea (with senior in the room)

─ Post-mortem + feedback session

Citing this plan in an interview signals that you already have a concrete picture of your first 90 days.

Failure case: chasing short-term commission

The most common failure in IS/PB is chasing near-term commission and burning trust.

Salesperson A's five years

Year 1-2: Pitches whatever is hot, "this name is going to rip"

─ Hits a couple of times, wallet share grows

─ PM calls them "fun to talk to"

Year 3: Three wrong pitches in a row

─ Did not understand the sector view but repeated it anyway

─ PM starts cutting commission share

Year 4: Attempts cross-sell, pitches PB services

─ But PM is already in "trust eroded" mode

─ Wallet rotates to another salesperson

Year 5: Performance review with desk head

─ Wallet share -40% YoY

─ Bonus 0%

─ Tries to move buy-side, blocked at reference check

Compare to:

Salesperson B's five years

Year 1-2: Weekly sector deep-dive, clearly stated views

─ Wallet share is small at first

─ PM calls them "the one who does their homework"

Year 3: Consistent view in one sector, post-mortem when wrong

─ PM puts them at #1 priority for periodic meetings

─ Wallet share grows slowly

Year 4-5: When that PM scales the fund, gets bridged to PB

─ Successful cross-sell

─ Bonus jumps materially

"Long-term game" is a cliché, but no role fits it better than IS/PB.

References

- Goldman Sachs Prime Services overview: https://www.goldmansachs.com/services/prime-services/

- Morgan Stanley Prime Brokerage: https://www.morganstanley.com/im/en-us/individual-investor/about-us/prime-brokerage.html

- JP Morgan Prime Services: https://www.jpmorgan.com/markets/prime-services

- Archegos Capital Management collapse report (Credit Suisse Special Committee Report, 2021): https://www.credit-suisse.com/about-us/en/reports-research/archegos-info-kit.html

- SEC Archegos charges (April 2022): https://www.sec.gov/news/press-release/2022-70

- Lehman Brothers bankruptcy and rehypothecation (UK FCA): https://www.fca.org.uk/

- ISLA (International Securities Lending Association): https://www.islaemea.org/

- BIS Triparty Repo paper: https://www.bis.org/publ/cpss30.htm

- KRX (Korea Exchange) institutional volume data: https://global.krx.co.kr/

- KOFIA (Korea Financial Investment Association) statistics: https://www.kofia.or.kr/

- TABB Group Prime Brokerage research: https://www.tabbgroup.com/

These references are not background reading — they are interview ammunition. Reading the actual GS/MS/JPM PB pages and the SEC Archegos charge document changes the level of detail you can discuss in an interview.